Postcode,In Use?,Latitude,Longitude,Easting,Northing,Grid Ref,Introduced,Terminated,Parish,Altitude,Country,Last Updated,Quality,LSOA Code,LSOA Name,LSOA Code 2021,LSOA Name 2021 HA7 3HX,Yes,51.630815,-0.336832,515211,193754,TQ152937,1980-01-01,,,155,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A HA7 3HY,No,51.629613,-0.338321,515111,193618,TQ151936,1980-01-01,2005-01-01,,153,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1AH,No,51.636770,-0.349707,514305,194396,TQ143943,1980-01-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1AJ,No,51.637023,-0.347255,514474,194428,TQ144944,1980-01-01,2000-07-01,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1AL,No,51.636612,-0.351909,514153,194375,TQ141943,1980-01-01,2000-07-01,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AN,No,51.636369,-0.351239,514200,194349,TQ141943,1980-01-01,2000-07-01,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AP,No,51.636952,-0.352388,514119,194413,TQ141944,1980-01-01,2000-07-01,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AQ,No,51.637860,-0.351141,514203,194515,TQ142945,1980-01-01,2000-07-01,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1AR,No,51.637265,-0.349689,514305,194452,TQ143944,1980-01-01,2000-07-01,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1AS,No,51.637327,-0.352837,514087,194454,TQ140944,1980-01-01,2000-07-01,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AT,No,51.636599,-0.354164,513997,194370,TQ139943,1980-01-01,2000-07-01,,141,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AU,No,51.637112,-0.353582,514036,194428,TQ140944,1980-01-01,2000-07-01,,141,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AW,No,51.635137,-0.352526,514114,194210,TQ141942,1980-01-01,2000-07-01,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AX,No,51.637880,-0.353207,514060,194514,TQ140945,1980-01-01,2000-07-01,,139,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1AY,No,51.636475,-0.349168,514343,194364,TQ143943,1991-01-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1AZ,No,51.636253,-0.346850,514504,194343,TQ145943,1994-12-01,1998-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1BF,No,51.636636,-0.347804,514437,194385,TQ144943,1996-12-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1DL,No,51.636636,-0.347804,514437,194385,TQ144943,1993-01-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1DQ,No,51.636080,-0.353691,514031,194313,TQ140943,1980-01-01,2000-07-01,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1DX,No,51.636636,-0.347804,514437,194385,TQ144943,1994-12-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1DZ,No,51.636636,-0.347804,514437,194385,TQ144943,1997-06-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EA,No,51.636577,-0.346231,514546,194380,TQ145943,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EB,No,51.635228,-0.343621,514730,194234,TQ147942,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ED,No,51.635322,-0.343936,514708,194244,TQ147942,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EE,No,51.634529,-0.342505,514809,194159,TQ148941,1980-01-01,2000-07-01,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EF,No,51.637121,-0.348466,514390,194437,TQ143944,1990-02-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1EG,No,51.636497,-0.347549,514455,194369,TQ144943,1995-07-01,1998-12-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EH,No,51.633953,-0.341905,514852,194095,TQ148940,1980-01-01,2000-07-01,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EJ,No,51.633473,-0.340997,514916,194043,TQ149940,1980-01-01,2000-07-01,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EL,No,51.632808,-0.339750,515004,193971,TQ150939,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EN,No,51.636497,-0.347549,514455,194369,TQ144943,1995-12-01,1999-12-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EP,No,51.633575,-0.342482,514813,194052,TQ148940,1980-01-01,2000-07-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EQ,No,51.635558,-0.340271,514961,194276,TQ149942,1987-04-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1ER,No,51.632971,-0.341709,514868,193987,TQ148939,1980-01-01,2000-07-01,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ES,No,51.632984,-0.342634,514804,193986,TQ148939,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ET,No,51.633018,-0.344439,514679,193987,TQ146939,1980-01-01,2000-07-01,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EU,No,51.634346,-0.343581,514735,194136,TQ147941,1980-01-01,2000-07-01,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EW,No,51.632911,-0.340050,514983,193982,TQ149939,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EX,No,51.634302,-0.344320,514684,194130,TQ146941,1980-01-01,2000-07-01,,146,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EY,No,51.634974,-0.344151,514694,194205,TQ146942,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1EZ,No,51.634621,-0.343976,514707,194166,TQ147941,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HA,No,51.633454,-0.344755,514656,194035,TQ146940,1980-01-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HB,No,51.633962,-0.345069,514633,194091,TQ146940,1980-01-01,2000-07-01,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HD,No,51.633434,-0.347819,514444,194028,TQ144940,1980-01-01,2000-07-01,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HE,No,51.632303,-0.345375,514616,193906,TQ146939,1980-01-01,2000-07-01,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HF,No,51.632054,-0.346222,514558,193877,TQ145938,1980-01-01,2000-07-01,,136,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HG,No,51.633805,-0.347314,514478,194070,TQ144940,1980-01-01,2000-07-01,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HH,No,51.634061,-0.350166,514280,194094,TQ142940,1980-01-01,2000-07-01,,128,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HJ,No,51.633651,-0.350456,514261,194048,TQ142940,1980-01-01,2000-07-01,,124,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HL,No,51.634679,-0.349378,514333,194164,TQ143941,1980-01-01,2000-07-01,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HN,No,51.635829,-0.347992,514426,194294,TQ144942,1980-01-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HP,No,51.635918,-0.349188,514343,194303,TQ143943,1980-01-01,2000-07-01,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HQ,No,51.633586,-0.347091,514494,194046,TQ144940,1980-01-01,2000-07-01,,134,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HR,No,51.636636,-0.347804,514437,194385,TQ144943,1980-01-01,2000-07-01,,146,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HS,No,51.636253,-0.346850,514504,194343,TQ145943,1980-01-01,2000-07-01,,146,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HT,No,51.634970,-0.347055,514493,194200,TQ144942,1980-01-01,2000-07-01,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HU,No,51.634843,-0.346337,514543,194187,TQ145941,1980-01-01,2000-07-01,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HW,No,51.635341,-0.348472,514394,194239,TQ143942,1980-01-01,2000-07-01,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HX,No,51.635262,-0.344805,514648,194236,TQ146942,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1HY,No,51.634957,-0.343544,514736,194204,TQ147942,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1HZ,No,51.634119,-0.346002,514568,194107,TQ145941,1980-01-01,2000-07-01,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JA,No,51.631230,-0.336875,515207,193800,TQ152938,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JB,No,51.631098,-0.337732,515148,193784,TQ151937,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JD,No,51.631690,-0.338274,515109,193849,TQ151938,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JE,No,51.631946,-0.340446,514958,193874,TQ149938,1980-01-01,2000-07-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JF,No,51.632065,-0.338708,515078,193890,TQ150938,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JG,No,51.630880,-0.339517,515025,193757,TQ150937,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JH,No,51.632332,-0.340461,514956,193917,TQ149939,1980-01-01,2000-07-01,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JJ,No,51.632171,-0.342403,514822,193896,TQ148938,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JL,No,51.631098,-0.345997,514576,193771,TQ145937,1980-01-01,2000-07-01,,136,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JN,No,51.628586,-0.349599,514333,193486,TQ143934,1980-01-01,2000-07-01,,113,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JP,No,51.630308,-0.346734,514527,193682,TQ145936,1980-01-01,2000-07-01,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JQ,No,51.630875,-0.340413,514963,193755,TQ149937,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1JR,No,51.631209,-0.348825,514380,193779,TQ143937,1980-01-01,2000-07-01,,123,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JS,No,51.631233,-0.349864,514308,193780,TQ143937,1980-01-01,2000-07-01,,118,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JT,No,51.632236,-0.349553,514327,193892,TQ143938,1980-01-01,2000-07-01,,120,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JU,No,51.632430,-0.347379,514477,193917,TQ144939,1980-01-01,2000-07-01,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JW,No,51.628718,-0.350042,514302,193500,TQ143935,1980-01-01,2000-07-01,,113,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JX,No,51.631842,-0.347097,514498,193852,TQ144938,1980-01-01,2000-07-01,,132,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JY,No,51.632014,-0.347856,514445,193870,TQ144938,1980-01-01,2000-07-01,,128,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1JZ,No,51.631802,-0.348139,514426,193846,TQ144938,1980-01-01,2000-07-01,,127,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LA,No,51.632779,-0.351065,514221,193950,TQ142939,1980-01-01,2000-07-01,,118,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LB,No,51.633221,-0.351859,514165,193998,TQ141939,1980-01-01,2000-07-01,,121,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LD,No,51.633958,-0.351803,514167,194080,TQ141940,1980-01-01,2000-07-01,,126,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LE,No,51.633131,-0.349911,514300,193991,TQ142939,1980-01-01,2000-07-01,,122,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LF,No,51.631434,-0.341187,514908,193816,TQ149938,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1LG,No,51.632745,-0.347411,514474,193952,TQ144939,1980-01-01,2000-07-01,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LH,No,51.635143,-0.341471,514879,194228,TQ148942,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LJ,No,51.635470,-0.341011,514910,194266,TQ149942,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1LL,No,51.635255,-0.340441,514950,194242,TQ149942,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1LN,No,51.636796,-0.341989,514839,194411,TQ148944,1980-01-01,2000-07-01,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1LP,No,51.637250,-0.341611,514864,194463,TQ148944,1980-01-01,2000-07-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1LQ,No,51.632903,-0.348388,514406,193968,TQ144939,1980-01-01,2000-07-01,,126,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1LR,No,51.637061,-0.342283,514818,194440,TQ148944,1980-01-01,2000-07-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1LS,No,51.637452,-0.341315,514884,194485,TQ148944,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1LT,No,51.638120,-0.340206,514959,194561,TQ149945,1980-01-01,2000-07-01,,147,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1LU,No,51.637825,-0.338454,515081,194531,TQ150945,1980-01-01,2000-07-01,,147,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1LW,No,51.636540,-0.342909,514776,194382,TQ147943,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 1LX,No,51.637340,-0.339729,514994,194475,TQ149944,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1LY,No,51.637459,-0.339262,515026,194489,TQ150944,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1LZ,No,51.632111,-0.343850,514722,193888,TQ147938,1991-01-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1NA,No,51.636644,-0.338194,515102,194400,TQ151944,1980-01-01,1995-12-01,,152,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NB,No,51.636397,-0.337263,515167,194374,TQ151943,1980-01-01,2000-07-01,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1ND,No,51.635646,-0.342016,514840,194284,TQ148942,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NE,No,51.636651,-0.334899,515330,194406,TQ153944,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NF,No,51.632660,-0.334395,515375,193963,TQ153939,1984-10-01,2000-07-01,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NG,No,51.634323,-0.340056,514979,194139,TQ149941,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NH,No,51.634110,-0.339616,515010,194116,TQ150941,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NJ,No,51.635386,-0.338890,515057,194260,TQ150942,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NL,No,51.636003,-0.339937,514983,194326,TQ149943,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NN,No,51.632460,-0.334850,515344,193940,TQ153939,1997-12-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NP,No,51.632663,-0.338426,515096,193957,TQ150939,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NQ,No,51.635342,-0.337736,515137,194256,TQ151942,1980-01-01,2000-07-01,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NR,No,51.633606,-0.340227,514969,194059,TQ149940,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NS,No,51.632295,-0.337153,515185,193918,TQ151939,1985-04-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NU,No,51.632179,-0.335308,515313,193908,TQ153939,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NW,No,51.636636,-0.347804,514437,194385,TQ144943,1997-12-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1NY,No,51.633382,-0.333299,515449,194045,TQ154940,1980-01-01,2000-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1NZ,No,51.631925,-0.336473,515233,193878,TQ152938,1980-01-01,2000-06-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1PA,No,51.635341,-0.331320,515581,194266,TQ155942,1980-01-01,2000-07-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1PB,No,51.634182,-0.333255,515450,194134,TQ154941,1980-01-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1PD,No,51.638403,-0.329126,515725,194610,TQ157946,1980-01-01,2000-07-01,,138,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1PE,No,51.638339,-0.330906,515602,194600,TQ156946,1990-07-01,1995-12-01,,139,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PF,No,51.636636,-0.347804,514437,194385,TQ144943,1995-12-01,2000-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1PG,No,51.638339,-0.330906,515602,194600,TQ156946,1997-04-01,2000-10-01,,139,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PH,No,51.641040,-0.331819,515532,194899,TQ155948,1980-01-01,2000-07-01,,131,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PJ,No,51.640000,-0.332637,515478,194782,TQ154947,1980-01-01,2000-07-01,,132,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PL,No,51.640424,-0.331480,515557,194831,TQ155948,1980-01-01,2000-07-01,,129,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PN,No,51.639340,-0.331751,515541,194710,TQ155947,1980-01-01,2000-07-01,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PP,No,51.639791,-0.331835,515534,194760,TQ155947,1980-01-01,2000-07-01,,129,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PQ,No,51.639583,-0.330528,515625,194739,TQ156947,1980-01-01,2000-07-01,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PR,No,51.639195,-0.333563,515416,194691,TQ154946,1980-01-01,2000-07-01,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PS,No,51.638583,-0.332299,515505,194625,TQ155946,1980-01-01,2000-07-01,,137,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PU,No,51.635005,-0.333008,515465,194226,TQ154942,1990-02-01,2000-07-01,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1PW,No,51.639044,-0.331169,515582,194678,TQ155946,1980-01-01,2000-07-01,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1PX,No,51.634785,-0.333927,515402,194200,TQ154942,1991-09-01,1995-12-01,,154,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1PY,No,51.634785,-0.333927,515402,194200,TQ154942,1992-01-01,1995-07-01,,154,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1PZ,No,51.636253,-0.346850,514504,194343,TQ145943,1992-08-01,1998-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QA,No,51.630475,-0.347089,514502,193700,TQ145937,1992-08-01,1994-05-01,,130,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QB,No,51.630840,-0.347509,514472,193740,TQ144937,1994-05-01,1995-01-01,,129,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QD,No,51.636253,-0.346850,514504,194343,TQ145943,1994-05-01,1998-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QF,No,51.636497,-0.347549,514455,194369,TQ144943,1994-12-01,1998-12-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QL,No,51.636636,-0.347804,514437,194385,TQ144943,1995-01-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QP,No,51.630780,-0.347670,514461,193733,TQ144937,1990-02-01,2000-07-01,,129,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QR,No,51.630434,-0.344200,514702,193700,TQ147937,1991-09-01,1992-12-01,,136,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1QS,No,51.630434,-0.344200,514702,193700,TQ147937,1993-01-01,1994-05-01,,136,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1QT,No,51.636636,-0.347804,514437,194385,TQ144943,1993-01-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QU,No,51.636253,-0.346850,514504,194343,TQ145943,1993-01-01,1998-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QW,No,51.631237,-0.346974,514508,193785,TQ145937,1991-01-01,2000-07-01,,132,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QX,No,51.630434,-0.344200,514702,193700,TQ147937,1993-08-01,1996-12-01,,136,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1QY,No,51.636636,-0.347804,514437,194385,TQ144943,1994-05-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1QZ,No,51.630750,-0.347512,514472,193730,TQ144937,1994-12-01,1995-07-01,,129,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1RA,No,51.636497,-0.347549,514455,194369,TQ144943,1997-12-01,2000-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1RB,No,51.631818,-0.339064,515054,193862,TQ150938,1980-01-01,2000-07-01,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1RD,No,51.637185,-0.331960,515532,194470,TQ155944,1980-01-01,2000-07-01,,146,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 1RF,No,51.631034,-0.341505,514887,193771,TQ148937,1980-01-01,2000-07-01,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1RG,No,51.633069,-0.339769,515002,194000,TQ150940,1991-09-01,1992-12-01,,154,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1RL,No,51.636636,-0.347804,514437,194385,TQ144943,1993-01-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1RN,No,51.637638,-0.337276,515163,194512,TQ151945,1994-12-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1RQ,No,51.636636,-0.347804,514437,194385,TQ144943,1984-10-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1SA,No,51.630578,-0.344874,514655,193715,TQ146937,1985-04-01,2000-07-01,,136,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1SB,No,51.630067,-0.337957,515135,193669,TQ151936,1985-10-01,2000-07-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 1ZD,No,51.636497,-0.347549,514455,194369,TQ144943,1997-12-01,1998-12-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZE,No,51.636636,-0.347804,514437,194385,TQ144943,1998-06-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZN,No,51.636636,-0.347804,514437,194385,TQ144943,2000-06-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZP,No,51.636636,-0.347804,514437,194385,TQ144943,1999-06-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZQ,No,51.636636,-0.347804,514437,194385,TQ144943,2000-06-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZR,No,51.636636,-0.347804,514437,194385,TQ144943,1999-12-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZS,No,51.636636,-0.347804,514437,194385,TQ144943,1999-06-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZT,No,51.636636,-0.347804,514437,194385,TQ144943,1999-06-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZU,No,51.636636,-0.347804,514437,194385,TQ144943,1998-12-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZW,No,51.636636,-0.347804,514437,194385,TQ144943,1998-12-01,2000-07-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZX,No,51.636497,-0.347549,514455,194369,TQ144943,1998-06-01,2000-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZY,No,51.636497,-0.347549,514455,194369,TQ144943,1998-06-01,1999-06-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 1ZZ,No,51.636253,-0.346850,514504,194343,TQ145943,1996-12-01,1997-12-01,,146,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 3EN,No,51.637243,-0.344993,514630,194456,TQ146944,1991-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3JD,No,51.636104,-0.342635,514796,194333,TQ147943,1980-01-01,2000-07-01,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3JE,No,51.635159,-0.342554,514804,194228,TQ148942,1980-01-01,2000-07-01,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 3JF,No,51.635554,-0.343176,514760,194271,TQ147942,1980-01-01,2000-07-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD2 3JG,No,51.636180,-0.344222,514686,194339,TQ146943,1980-01-01,2000-07-01,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3JL,No,51.637136,-0.343754,514716,194446,TQ147944,1980-01-01,2000-07-01,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3JN,No,51.637499,-0.344001,514698,194486,TQ146944,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3JQ,No,51.636189,-0.343528,514734,194342,TQ147943,1980-01-01,2000-07-01,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3LG,No,51.636962,-0.345451,514599,194424,TQ145944,1980-01-01,2000-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3QY,No,51.638941,-0.337257,515161,194657,TQ151946,1980-01-01,2000-07-01,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 3QZ,No,51.638332,-0.337395,515153,194589,TQ151945,1980-01-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 3RB,No,51.638689,-0.334058,515383,194634,TQ153946,1980-01-01,2000-07-01,,139,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RD,No,51.640109,-0.334642,515339,194791,TQ153947,1980-01-01,2000-07-01,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RE,No,51.638012,-0.333823,515401,194560,TQ154945,1980-01-01,2000-07-01,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 3RF,No,51.637668,-0.334341,515366,194520,TQ153945,1980-01-01,2000-07-01,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 3RG,No,51.644268,-0.333001,515442,195257,TQ154952,1980-01-01,2000-07-01,,118,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RH,No,51.641237,-0.333632,515406,194918,TQ154949,1980-01-01,2000-07-01,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RJ,No,51.641076,-0.333696,515402,194900,TQ154949,1980-01-01,2000-07-01,,133,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RL,No,51.642598,-0.330677,515607,195074,TQ156950,1980-01-01,2000-07-01,,131,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RN,No,51.641847,-0.330344,515632,194991,TQ156949,1980-01-01,2000-07-01,,131,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RP,No,51.642670,-0.326267,515912,195089,TQ159950,1980-01-01,2000-07-01,,119,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RQ,No,51.643395,-0.329217,515706,195165,TQ157951,1980-01-01,2000-07-01,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RR,No,51.639517,-0.334114,515377,194726,TQ153947,1980-01-01,2000-07-01,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD2 3RS,No,51.638248,-0.335288,515299,194583,TQ152945,1991-01-01,2000-07-01,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD2 3TL,No,51.636705,-0.342527,514802,194400,TQ148944,1990-07-01,2000-07-01,,151,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD2 3XG,No,51.636786,-0.348304,514402,194400,TQ144944,1988-03-01,1992-12-01,,145,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1AH,Yes,51.636770,-0.349707,514305,194396,TQ143943,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1AJ,Yes,51.637050,-0.347254,514474,194431,TQ144944,2000-10-01,,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1AL,Yes,51.636612,-0.351909,514153,194375,TQ141943,2000-10-01,,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AN,Yes,51.636369,-0.351239,514200,194349,TQ141943,2000-10-01,,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AP,Yes,51.636952,-0.352388,514119,194413,TQ141944,2000-10-01,,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AQ,Yes,51.637502,-0.350605,514241,194476,TQ142944,2000-10-01,,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1AR,Yes,51.637265,-0.349689,514305,194452,TQ143944,2000-10-01,,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1AS,Yes,51.637327,-0.352837,514087,194454,TQ140944,2000-10-01,,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AT,Yes,51.636599,-0.354164,513997,194370,TQ139943,2000-10-01,,,141,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AU,Yes,51.637112,-0.353582,514036,194428,TQ140944,2000-10-01,,,141,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AW,Yes,51.635137,-0.352526,514114,194210,TQ141942,2000-10-01,,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AX,Yes,51.637880,-0.353207,514060,194514,TQ140945,2000-10-01,,,139,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1AY,Yes,51.636475,-0.349168,514343,194364,TQ143943,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1DQ,Yes,51.636080,-0.353691,514031,194313,TQ140943,2000-10-01,,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EA,Yes,51.636577,-0.346231,514546,194380,TQ145943,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EB,Yes,51.635228,-0.343621,514730,194234,TQ147942,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1ED,Yes,51.635322,-0.343936,514708,194244,TQ147942,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EE,Yes,51.634547,-0.342548,514806,194160,TQ148941,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EF,Yes,51.637121,-0.348466,514390,194437,TQ143944,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1EH,Yes,51.633953,-0.341905,514852,194095,TQ148940,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EJ,Yes,51.633483,-0.341055,514912,194044,TQ149940,2000-10-01,,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EL,Yes,51.632808,-0.339750,515004,193971,TQ150939,2000-10-01,,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EN,Yes,51.633825,-0.341693,514867,194081,TQ148940,2008-05-01,,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EP,Yes,51.633575,-0.342482,514813,194052,TQ148940,2000-10-01,,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EQ,Yes,51.635558,-0.340271,514961,194276,TQ149942,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1ER,Yes,51.632971,-0.341709,514868,193987,TQ148939,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1ES,Yes,51.632984,-0.342634,514804,193986,TQ148939,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1ET,Yes,51.633018,-0.344439,514679,193987,TQ146939,2000-10-01,,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EU,Yes,51.634346,-0.343581,514735,194136,TQ147941,2000-10-01,,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EW,No,51.632911,-0.340050,514983,193982,TQ149939,2000-10-01,2001-12-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EX,Yes,51.634302,-0.344320,514684,194130,TQ146941,2000-10-01,,,147,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EY,Yes,51.634913,-0.344254,514687,194198,TQ146941,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1EZ,Yes,51.634683,-0.343887,514713,194173,TQ147941,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1FG,Yes,51.636962,-0.345451,514599,194424,TQ145944,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1FL,Yes,51.636754,-0.347251,514475,194399,TQ144943,2012-07-01,,,146,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1FW,Yes,51.637465,-0.337138,515173,194493,TQ151944,2015-06-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1GB,Yes,51.633669,-0.338953,515057,194068,TQ150940,2013-11-01,,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1GD,Yes,51.636104,-0.342635,514796,194333,TQ147943,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1GE,Yes,51.635142,-0.342642,514798,194226,TQ147942,2000-10-01,,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1GF,No,51.635554,-0.343176,514760,194271,TQ147942,2000-10-01,2000-10-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1GG,Yes,51.636136,-0.344267,514683,194334,TQ146943,2000-10-01,,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1GL,Yes,51.637109,-0.343740,514717,194443,TQ147944,2000-10-01,,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1GN,Yes,51.637243,-0.344993,514630,194456,TQ146944,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1GP,Yes,51.632144,-0.335425,515305,193904,TQ153939,2017-01-01,,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1GQ,Yes,51.636048,-0.343736,514720,194326,TQ147943,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1GT,Yes,51.635315,-0.342158,514831,194246,TQ148942,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1GW,Yes,51.635511,-0.338192,515105,194274,TQ151942,2019-04-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1HA,Yes,51.633454,-0.344755,514656,194035,TQ146940,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HB,Yes,51.633962,-0.345069,514633,194091,TQ146940,2000-10-01,,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HD,Yes,51.633434,-0.347819,514444,194028,TQ144940,2000-10-01,,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HE,Yes,51.632303,-0.345375,514616,193906,TQ146939,2000-10-01,,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HF,Yes,51.632054,-0.346222,514558,193877,TQ145938,2000-10-01,,,136,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HG,Yes,51.633805,-0.347314,514478,194070,TQ144940,2000-10-01,,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HH,Yes,51.634061,-0.350166,514280,194094,TQ142940,2000-10-01,,,128,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HJ,Yes,51.633651,-0.350456,514261,194048,TQ142940,2000-10-01,,,124,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HL,Yes,51.634679,-0.349378,514333,194164,TQ143941,2000-10-01,,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HN,Yes,51.635829,-0.347992,514426,194294,TQ144942,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HP,Yes,51.635918,-0.349188,514343,194303,TQ143943,2000-10-01,,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HQ,Yes,51.633586,-0.347091,514494,194046,TQ144940,2000-10-01,,,134,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HR,Yes,51.636636,-0.347804,514437,194385,TQ144943,2000-10-01,,,146,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HS,Yes,51.636253,-0.346850,514504,194343,TQ145943,2000-10-01,,,146,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HT,Yes,51.634970,-0.347055,514493,194200,TQ144942,2000-10-01,,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HU,Yes,51.634843,-0.346337,514543,194187,TQ145941,2000-10-01,,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HW,Yes,51.635341,-0.348472,514394,194239,TQ143942,2000-10-01,,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HX,Yes,51.635262,-0.344805,514648,194236,TQ146942,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1HY,Yes,51.634957,-0.343544,514736,194204,TQ147942,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1HZ,Yes,51.634119,-0.346002,514568,194107,TQ145941,2000-10-01,,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JA,Yes,51.631224,-0.337091,515192,193799,TQ151937,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JB,Yes,51.631098,-0.337732,515148,193784,TQ151937,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JD,Yes,51.631690,-0.338274,515109,193849,TQ151938,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JE,Yes,51.632004,-0.340097,514982,193881,TQ149938,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JF,No,51.632065,-0.338708,515078,193890,TQ150938,2000-10-01,2012-12-01,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JG,Yes,51.631246,-0.339966,514993,193797,TQ149937,2000-10-01,,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JH,Yes,51.632315,-0.340476,514955,193915,TQ149939,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JJ,Yes,51.632196,-0.342287,514830,193899,TQ148938,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1JL,Yes,51.631148,-0.345735,514594,193777,TQ145937,2000-10-01,,,137,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JN,Yes,51.628585,-0.349585,514334,193486,TQ143934,2000-10-01,,,113,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JP,Yes,51.630308,-0.346734,514527,193682,TQ145936,2000-10-01,,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JR,Yes,51.631209,-0.348825,514380,193779,TQ143937,2000-10-01,,,123,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JS,Yes,51.631233,-0.349864,514308,193780,TQ143937,2000-10-01,,,118,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JT,Yes,51.632349,-0.349275,514346,193905,TQ143939,2000-10-01,,,121,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JU,Yes,51.632430,-0.347379,514477,193917,TQ144939,2000-10-01,,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JW,Yes,51.629436,-0.349930,514308,193580,TQ143935,2000-10-01,,,116,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JX,Yes,51.631842,-0.347097,514498,193852,TQ144938,2000-10-01,,,132,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JY,Yes,51.632014,-0.347856,514445,193870,TQ144938,2000-10-01,,,128,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1JZ,Yes,51.631802,-0.348139,514426,193846,TQ144938,2000-10-01,,,127,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LA,Yes,51.632779,-0.351065,514221,193950,TQ142939,2000-10-01,,,118,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LB,Yes,51.633221,-0.351859,514165,193998,TQ141939,2000-10-01,,,121,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LD,Yes,51.633958,-0.351803,514167,194080,TQ141940,2000-10-01,,,126,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LE,Yes,51.633131,-0.349911,514300,193991,TQ142939,2000-10-01,,,122,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LF,Yes,51.631434,-0.341187,514908,193816,TQ149938,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1LG,Yes,51.632745,-0.347411,514474,193952,TQ144939,2000-10-01,,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LH,Yes,51.635143,-0.341471,514879,194228,TQ148942,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LJ,Yes,51.635470,-0.341011,514910,194266,TQ149942,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1LL,Yes,51.635255,-0.340441,514950,194242,TQ149942,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1LN,Yes,51.636841,-0.342002,514838,194416,TQ148944,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1LP,Yes,51.637331,-0.341666,514860,194471,TQ148944,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1LQ,Yes,51.632903,-0.348388,514406,193968,TQ144939,2000-10-01,,,126,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LR,Yes,51.637061,-0.342283,514818,194440,TQ148944,2000-10-01,,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1LS,Yes,51.637452,-0.341315,514884,194485,TQ148944,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1LU,Yes,51.631027,-0.339700,515012,193773,TQ150937,2005-01-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1LW,Yes,51.636540,-0.342909,514776,194382,TQ147943,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1LX,Yes,51.632151,-0.351854,514168,193879,TQ141938,2008-06-01,,,113,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1LZ,Yes,51.632111,-0.343850,514722,193888,TQ147938,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1NA,Yes,51.631647,-0.336541,515229,193847,TQ152938,2001-06-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NB,Yes,51.636538,-0.337056,515181,194390,TQ151943,2000-10-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1ND,Yes,51.635646,-0.342016,514840,194284,TQ148942,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NE,Yes,51.636651,-0.334899,515330,194406,TQ153944,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NF,Yes,51.632660,-0.334395,515375,193963,TQ153939,2000-10-01,,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NG,Yes,51.634586,-0.339584,515011,194169,TQ150941,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NH,Yes,51.634225,-0.339453,515021,194130,TQ150941,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NJ,Yes,51.635368,-0.338905,515056,194257,TQ150942,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NL,Yes,51.636003,-0.339937,514983,194326,TQ149943,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NN,Yes,51.632826,-0.335299,515312,193980,TQ153939,2000-10-01,,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NP,Yes,51.633171,-0.339347,515031,194012,TQ150940,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1NQ,Yes,51.635342,-0.337736,515137,194256,TQ151942,2000-10-01,,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NR,Yes,51.633606,-0.340227,514969,194059,TQ149940,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NS,Yes,51.632295,-0.337153,515185,193918,TQ151939,2000-10-01,,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NU,No,51.632179,-0.335308,515313,193908,TQ153939,2000-10-01,2015-07-01,,155,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NW,Yes,51.638012,-0.333823,515401,194560,TQ154945,2000-10-01,,,142,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NY,Yes,51.633022,-0.333890,515409,194004,TQ154940,2000-10-01,,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1NZ,Yes,51.638589,-0.333946,515391,194623,TQ153946,2000-10-01,,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PA,Yes,51.635341,-0.331320,515581,194266,TQ155942,2000-10-01,,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1PB,Yes,51.636014,-0.331844,515543,194340,TQ155943,2000-10-01,,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1PD,Yes,51.639141,-0.329142,515722,194692,TQ157946,2000-10-01,,,136,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1PE,Yes,51.637668,-0.334341,515366,194520,TQ153945,2000-10-01,,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1PF,Yes,51.639517,-0.334114,515377,194726,TQ153947,2000-10-01,,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PG,Yes,51.638248,-0.335288,515299,194583,TQ152945,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1PH,Yes,51.641040,-0.331819,515532,194899,TQ155948,2000-10-01,,,131,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PJ,Yes,51.640091,-0.332720,515472,194792,TQ154947,2000-10-01,,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PL,Yes,51.640662,-0.331775,515536,194857,TQ155948,2000-10-01,,,131,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PN,Yes,51.639340,-0.331751,515541,194710,TQ155947,2000-10-01,,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PP,Yes,51.639791,-0.331835,515534,194760,TQ155947,2000-10-01,,,129,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PQ,Yes,51.639583,-0.330528,515625,194739,TQ156947,2000-10-01,,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PR,Yes,51.639195,-0.333563,515416,194691,TQ154946,2000-10-01,,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PS,Yes,51.638583,-0.332299,515505,194625,TQ155946,2000-10-01,,,137,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PT,Yes,51.639977,-0.333548,515415,194778,TQ154947,2005-12-01,,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PU,Yes,51.635005,-0.333008,515465,194226,TQ154942,2000-10-01,,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1PW,Yes,51.639044,-0.331169,515582,194678,TQ155946,2000-10-01,,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1PZ,Yes,51.632094,-0.338866,515067,193893,TQ150938,2013-12-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1QP,Yes,51.630780,-0.347670,514461,193733,TQ144937,2000-10-01,,,129,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1QW,Yes,51.631237,-0.346974,514508,193785,TQ145937,2000-10-01,,,132,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1RB,Yes,51.631818,-0.339064,515054,193862,TQ150938,2000-10-01,,,153,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1RD,Yes,51.637343,-0.331709,515549,194488,TQ155944,2000-10-01,,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 1RF,Yes,51.631034,-0.341505,514887,193771,TQ148937,2000-10-01,,,145,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1RN,No,51.637638,-0.337276,515163,194512,TQ151945,2000-10-01,2012-04-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1SA,Yes,51.630578,-0.344874,514655,193715,TQ146937,2000-10-01,,,136,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1SB,Yes,51.630067,-0.337957,515135,193669,TQ151936,2000-10-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1SD,Yes,51.632670,-0.337631,515151,193959,TQ151939,2000-12-01,,,156,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1SE,Yes,51.636630,-0.344856,514641,194388,TQ146943,2000-12-01,,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1SF,No,51.635713,-0.343618,514729,194288,TQ147942,2000-12-01,2025-04-01,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1SG,No,51.636577,-0.346231,514546,194380,TQ145943,2000-12-01,2001-07-01,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1SH,Yes,51.634568,-0.342720,514794,194163,TQ147941,2000-12-01,,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1SJ,Yes,51.631073,-0.342328,514830,193774,TQ148937,2000-12-01,,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1SL,Yes,51.631280,-0.346193,514562,193791,TQ145937,2000-12-01,,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1SN,Yes,51.630534,-0.339212,515047,193719,TQ150937,2000-12-01,,,151,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1SP,Yes,51.636877,-0.341321,514885,194421,TQ148944,2000-12-01,,,152,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1SQ,Yes,51.634097,-0.340599,514942,194113,TQ149941,2000-12-01,,,154,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023550,Hertsmere 013C,E01023550,Hertsmere 013C WD23 1UF,No,51.637012,-0.350290,514264,194422,TQ142944,2000-12-01,2001-09-01,,143,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1XB,Yes,51.633829,-0.333730,515418,194094,TQ154940,2021-11-01,,,60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 1XP,No,51.636871,-0.347897,514430,194411,TQ144944,2003-06-01,2006-01-01,,145,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1YJ,No,51.637012,-0.350290,514264,194422,TQ142944,2000-10-01,2001-02-01,,143,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1ZL,No,51.637012,-0.350290,514264,194422,TQ142944,2000-10-01,2001-05-01,,143,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 1ZU,No,51.637012,-0.350290,514264,194422,TQ142944,2000-10-01,2001-01-01,,143,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 4AJ,Yes,51.643521,-0.331120,515574,195176,TQ155951,2025-04-01,,,129,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EA,No,51.644493,-0.333022,515440,195282,TQ154952,2000-10-01,2015-12-01,,117,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EB,Yes,51.641086,-0.334418,515352,194900,TQ153949,2000-12-01,,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4ED,Yes,51.640392,-0.335513,515278,194822,TQ152948,2000-10-01,,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EE,Yes,51.641515,-0.332972,515451,194950,TQ154949,2000-10-01,,,133,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EF,Yes,51.642410,-0.330742,515603,195053,TQ156950,2000-10-01,,,131,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EG,Yes,51.641847,-0.330344,515632,194991,TQ156949,2000-10-01,,,131,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EH,Yes,51.642652,-0.326253,515913,195087,TQ159950,2000-12-01,,,118,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EJ,Yes,51.642345,-0.326149,515921,195054,TQ159950,2000-10-01,,,118,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4EL,Yes,51.643580,-0.329572,515681,195185,TQ156951,2000-10-01,,,130,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D WD23 4GA,Yes,51.638120,-0.340206,514959,194561,TQ149945,2000-10-01,,,147,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 4GB,Yes,51.637817,-0.338483,515079,194530,TQ150945,2000-10-01,,,147,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 4GD,Yes,51.637312,-0.339658,514999,194472,TQ149944,2000-10-01,,,150,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 4GE,Yes,51.637468,-0.339276,515025,194490,TQ150944,2000-10-01,,,149,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 4GG,Yes,51.637499,-0.344001,514698,194486,TQ146944,2000-10-01,,,148,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023549,Hertsmere 013B,E01023549,Hertsmere 013B WD23 4GL,Yes,51.638941,-0.337257,515161,194657,TQ151946,2000-10-01,,,140,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 4GN,Yes,51.638332,-0.337395,515153,194589,TQ151945,2000-10-01,,,144,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023548,Hertsmere 013A,E01023548,Hertsmere 013A WD23 4GQ,Yes,51.640109,-0.334642,515339,194791,TQ153947,2000-10-01,,,135,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023551,Hertsmere 013D,E01023551,Hertsmere 013D