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
AL7 1AD,Yes,51.803228,-0.191109,524821,213168,TL248131,1998-12-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AJ,Yes,51.804513,-0.188084,525026,213316,TL250133,1999-12-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AN,Yes,51.803847,-0.189213,524950,213240,TL249132,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AP,Yes,51.801017,-0.185903,525186,212931,TL251129,1999-12-01,,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AR,No,51.803529,-0.191372,524802,213201,TL248132,1986-04-01,1994-12-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AT,No,51.801954,-0.187737,525057,213032,TL250130,1996-12-01,2008-09-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AX,Yes,51.804110,-0.190551,524857,213267,TL248132,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AY,Yes,51.804286,-0.192024,524755,213284,TL247132,1992-08-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1AZ,No,51.804550,-0.189330,524940,213318,TL249133,1980-01-01,2000-06-01,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BA,Yes,51.804681,-0.189107,524955,213333,TL249133,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BB,No,51.809938,-0.188302,524996,213919,TL249139,1997-06-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BE,No,51.803920,-0.191618,524784,213244,TL247132,1986-07-01,2006-08-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BF,No,51.809938,-0.188302,524996,213919,TL249139,2000-01-01,2000-09-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BJ,Yes,51.804379,-0.190483,524861,213297,TL248132,1990-02-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BQ,Yes,51.801528,-0.186942,525113,212986,TL251129,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BT,No,51.809938,-0.188302,524996,213919,TL249139,1990-07-01,1998-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1BZ,No,51.809501,-0.188494,524984,213870,TL249138,1990-02-01,2000-06-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1DA,Yes,51.810804,-0.192532,524702,214008,TL247140,1980-01-01,,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1DB,Yes,51.811484,-0.192360,524712,214084,TL247140,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1DD,Yes,51.812429,-0.190059,524868,214193,TL248141,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1DE,Yes,51.812290,-0.190355,524848,214177,TL248141,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1DF,No,51.813136,-0.189247,524922,214273,TL249142,1980-01-01,2021-09-01,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1DG,Yes,51.813605,-0.188764,524954,214326,TL249143,1980-01-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1DY,No,51.809501,-0.188494,524984,213870,TL249138,1996-12-01,2000-06-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1EH,No,51.805350,-0.189907,524898,213406,TL248134,1985-04-01,2007-05-01,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1EJ,No,51.809938,-0.188302,524996,213919,TL249139,1985-04-01,1998-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1EL,Yes,51.808088,-0.191379,524789,213708,TL247137,1990-02-01,,"Welwyn Hatfield, unparished area",87,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1EN,Yes,51.809141,-0.188479,524986,213830,TL249138,1984-02-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1EP,Yes,51.805346,-0.190792,524837,213404,TL248134,1993-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1ET,No,51.810104,-0.190878,524818,213933,TL248139,1980-01-01,2021-12-01,"Welwyn Hatfield, unparished area",85,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1EU,Yes,51.809487,-0.189336,524926,213867,TL249138,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1EW,Yes,51.805785,-0.191877,524761,213451,TL247134,1983-07-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1EX,No,51.808148,-0.190013,524883,213717,TL248137,2005-07-01,2008-01-01,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Approximate to within 50 metres,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1FB,No,51.804378,-0.191585,524785,213295,TL247132,2001-12-01,2005-06-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1FS,Yes,51.807093,-0.189228,524940,213601,TL249136,2006-07-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1FT,Yes,51.807704,-0.189218,524939,213669,TL249136,2006-03-01,,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1FX,Yes,51.809215,-0.188026,525017,213839,TL250138,2014-02-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1FZ,Yes,51.809814,-0.188974,524950,213904,TL249139,2017-05-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1GA,Yes,51.809981,-0.196323,524443,213910,TL244139,1997-12-01,,"Welwyn Hatfield, unparished area",91,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1GB,Yes,51.809350,-0.192721,524693,213846,TL246138,1997-12-01,,"Welwyn Hatfield, unparished area",89,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1GE,No,51.807785,-0.186299,525140,213683,TL251136,2010-04-01,2024-06-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1GN,No,51.802802,-0.189081,524962,213124,TL249131,1996-06-01,2023-01-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1GU,Yes,51.803910,-0.188674,524987,213248,TL249132,2016-02-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1GX,Yes,51.801307,-0.185471,525215,212964,TL252129,2007-08-01,,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1HA,Yes,51.805154,-0.188827,524973,213386,TL249133,1985-04-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1HP,No,51.803598,-0.187627,525060,213215,TL250132,1996-06-01,2001-08-01,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1JB,No,51.801760,-0.185105,525239,213015,TL252130,2003-04-01,2005-04-01,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1JT,No,51.810247,-0.188478,524983,213953,TL249139,1996-06-01,1998-06-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1LB,No,51.808045,-0.192643,524702,213701,TL247137,1990-02-01,1995-01-01,"Welwyn Hatfield, unparished area",88,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1LD,No,51.806314,-0.192364,524726,213509,TL247135,1985-04-01,2011-05-01,"Welwyn Hatfield, unparished area",85,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1LH,No,51.808045,-0.192643,524702,213701,TL247137,1990-02-01,1999-06-01,"Welwyn Hatfield, unparished area",88,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1LJ,No,51.807978,-0.188293,525002,213701,TL250137,1980-01-01,1995-01-01,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1LS,No,51.809350,-0.192736,524692,213846,TL246138,1990-02-01,1998-06-01,"Welwyn Hatfield, unparished area",89,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1LT,Yes,51.801741,-0.186744,525126,213010,TL251130,1983-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1LW,No,51.810247,-0.188478,524983,213953,TL249139,1980-01-01,1998-06-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1LY,Yes,51.803598,-0.187627,525060,213215,TL250132,1991-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1LZ,No,51.809004,-0.187208,525074,213817,TL250138,1991-01-01,2010-08-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1NA,Yes,51.812026,-0.186680,525102,214154,TL251141,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NB,Yes,51.812548,-0.189010,524940,214208,TL249142,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1ND,Yes,51.811592,-0.187089,525075,214105,TL250141,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NE,Yes,51.811925,-0.185944,525153,214144,TL251141,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NF,Yes,51.810119,-0.185451,525192,213944,TL251139,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1NG,Yes,51.809540,-0.186374,525130,213878,TL251138,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1NH,Yes,51.810429,-0.186280,525134,213977,TL251139,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1NJ,Yes,51.811113,-0.187486,525049,214051,TL250140,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NL,Yes,51.810557,-0.188205,525001,213988,TL250139,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1NN,Yes,51.810858,-0.189658,524900,214019,TL248140,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1NP,Yes,51.811671,-0.189291,524923,214110,TL249141,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NQ,Yes,51.809835,-0.187465,525054,213909,TL250139,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1NR,Yes,51.812145,-0.189737,524891,214162,TL248141,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NS,Yes,51.811680,-0.188696,524964,214112,TL249141,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NT,Yes,51.813682,-0.187934,525011,214336,TL250143,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NU,Yes,51.812725,-0.188248,524992,214229,TL249142,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NW,Yes,51.811674,-0.190655,524829,214108,TL248141,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1NX,Yes,51.813665,-0.187369,525050,214335,TL250143,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NY,Yes,51.814258,-0.187940,525009,214400,TL250143,1980-01-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1NZ,Yes,51.813927,-0.185748,525161,214367,TL251143,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PA,Yes,51.813850,-0.186549,525106,214357,TL251143,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PB,Yes,51.813380,-0.186394,525118,214305,TL251143,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PD,Yes,51.812834,-0.184225,525269,214248,TL252142,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PE,Yes,51.811236,-0.183854,525299,214071,TL252140,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PF,Yes,51.810802,-0.183117,525351,214024,TL253140,1980-01-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PG,Yes,51.810607,-0.182675,525382,214003,TL253140,1980-01-01,,"Welwyn Hatfield, unparished area",76,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1PH,Yes,51.810860,-0.185088,525215,214027,TL252140,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PJ,Yes,51.811585,-0.184856,525229,214108,TL252141,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PL,Yes,51.812692,-0.186117,525139,214229,TL251142,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PN,Yes,51.812212,-0.184134,525277,214179,TL252141,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PP,Yes,51.813007,-0.185553,525177,214265,TL251142,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PQ,Yes,51.810907,-0.184085,525284,214034,TL252140,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PR,Yes,51.810590,-0.184475,525258,213998,TL252139,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PS,Yes,51.811110,-0.183235,525342,214058,TL253140,1981-06-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PT,No,51.809938,-0.188302,524996,213919,TL249139,1996-12-01,1998-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1PU,No,51.805260,-0.186952,525102,213401,TL251134,1990-02-01,1995-07-01,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1PW,Yes,51.812661,-0.187003,525078,214224,TL250142,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1PX,No,51.800974,-0.187210,525096,212924,TL250129,1992-08-01,2003-07-01,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1PY,No,51.810247,-0.188478,524983,213953,TL249139,1996-12-01,1997-12-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1PZ,Yes,51.802295,-0.180732,525539,213082,TL255130,1983-07-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QA,Yes,51.799982,-0.183479,525356,212820,TL253128,1980-01-01,,"Welwyn Hatfield, unparished area",85,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QD,Yes,51.804218,-0.179451,525622,213298,TL256132,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QE,Yes,51.803721,-0.179340,525631,213243,TL256132,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QF,Yes,51.803224,-0.180898,525525,213185,TL255131,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QG,Yes,51.803116,-0.180307,525566,213174,TL255131,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QH,Yes,51.804756,-0.181735,525463,213354,TL254133,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QJ,Yes,51.803924,-0.181421,525487,213262,TL254132,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QL,Yes,51.803814,-0.183006,525378,213247,TL253132,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QN,Yes,51.803956,-0.183494,525344,213262,TL253132,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QP,Yes,51.804610,-0.185077,525233,213332,TL252133,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QQ,Yes,51.804217,-0.181162,525504,213295,TL255132,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QR,Yes,51.804956,-0.185948,525172,213369,TL251133,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QS,Yes,51.804466,-0.186215,525155,213314,TL251133,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QT,Yes,51.803227,-0.184611,525269,213179,TL252131,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QU,Yes,51.804104,-0.184314,525287,213277,TL252132,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QW,Yes,51.804581,-0.184339,525284,213330,TL252133,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QX,Yes,51.803010,-0.182197,525436,213159,TL254131,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QY,Yes,51.802484,-0.181885,525459,213101,TL254131,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1QZ,Yes,51.804445,-0.186607,525128,213311,TL251133,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RA,No,51.809501,-0.188494,524984,213870,TL249138,1990-02-01,2000-06-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RB,Yes,51.804650,-0.180681,525536,213344,TL255133,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 1RD,Yes,51.804577,-0.178827,525664,213339,TL256133,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 1RE,Yes,51.804936,-0.178841,525662,213379,TL256133,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 1RF,Yes,51.805207,-0.181804,525457,213404,TL254134,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RG,Yes,51.805462,-0.181402,525484,213433,TL254134,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 1RH,Yes,51.805899,-0.182908,525379,213479,TL253134,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RJ,Yes,51.805303,-0.182801,525388,213413,TL253134,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RL,Yes,51.806287,-0.184212,525288,213520,TL252135,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RN,Yes,51.805691,-0.184004,525304,213454,TL253134,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RP,Yes,51.805231,-0.185082,525231,213401,TL252134,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RQ,Yes,51.805880,-0.182299,525421,213478,TL254134,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RS,No,51.801665,-0.187096,525102,213001,TL251130,1992-01-01,1999-06-01,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RT,No,51.809938,-0.188302,524996,213919,TL249139,1997-12-01,1999-06-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1RW,Yes,51.805264,-0.184311,525284,213406,TL252134,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1SJ,No,51.809938,-0.188302,524996,213919,TL249139,1993-01-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1SZ,No,51.809938,-0.188302,524996,213919,TL249139,1995-01-01,1998-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TA,Yes,51.805523,-0.177831,525730,213446,TL257134,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 1TB,No,51.809938,-0.188302,524996,213919,TL249139,1995-12-01,1999-06-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TD,No,51.809938,-0.188302,524996,213919,TL249139,1996-12-01,2000-06-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TE,No,51.809938,-0.188302,524996,213919,TL249139,1994-12-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TF,No,51.809938,-0.188302,524996,213919,TL249139,1992-08-01,2000-06-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TJ,No,51.805125,-0.178254,525702,213401,TL257134,1993-08-01,1995-07-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 1TL,No,51.807890,-0.197233,524386,213676,TL243136,1993-08-01,1999-06-01,"Welwyn Hatfield, unparished area",94,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1TN,Yes,51.810566,-0.194022,524600,213979,TL245139,1993-08-01,,"Welwyn Hatfield, unparished area",86,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1TP,Yes,51.799432,-0.178149,525725,212768,TL257127,1994-05-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 1TR,Yes,51.813464,-0.183083,525346,214320,TL253143,1994-12-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TS,Yes,51.802929,-0.186827,525117,213142,TL251131,1994-12-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TT,No,51.809938,-0.188302,524996,213919,TL249139,1995-01-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TU,No,51.809938,-0.188302,524996,213919,TL249139,1995-07-01,1998-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TW,Yes,51.806922,-0.197982,524337,213567,TL243135,1993-08-01,,"Welwyn Hatfield, unparished area",94,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1TX,No,51.809938,-0.188302,524996,213919,TL249139,1995-07-01,1998-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TY,No,51.809938,-0.188302,524996,213919,TL249139,1995-12-01,1998-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1TZ,No,51.810247,-0.188478,524983,213953,TL249139,1995-12-01,1997-12-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1UL,Yes,51.814008,-0.183975,525283,214379,TL252143,1990-02-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1UN,Yes,51.814712,-0.185920,525147,214454,TL251144,1990-02-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1US,No,51.809938,-0.188302,524996,213919,TL249139,1997-12-01,1999-06-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1UW,Yes,51.814930,-0.185475,525177,214479,TL251144,1990-02-01,,"Welwyn Hatfield, unparished area",75,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023914,Welwyn Hatfield 004C,E01023914,Welwyn Hatfield 004C
AL7 1WN,Yes,51.810752,-0.190939,524812,214005,TL248140,2021-06-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1WP,Yes,51.810296,-0.191088,524803,213954,TL248139,2022-03-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1WQ,Yes,51.810237,-0.191946,524744,213946,TL247139,2022-04-01,,"Welwyn Hatfield, unparished area",85,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1WS,Yes,51.810052,-0.191591,524769,213926,TL247139,2022-03-01,,"Welwyn Hatfield, unparished area",85,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1WT,Yes,51.809867,-0.191235,524794,213906,TL247139,2022-07-01,,"Welwyn Hatfield, unparished area",88,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1WU,Yes,51.809644,-0.190794,524825,213882,TL248138,2023-09-01,,"Welwyn Hatfield, unparished area",85,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023915,Welwyn Hatfield 004D,E01023915,Welwyn Hatfield 004D
AL7 1WX,Yes,51.804335,-0.189977,524896,213293,TL248132,2023-06-01,,"Welwyn Hatfield, unparished area",90,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1XQ,No,51.808833,-0.188332,524997,213796,TL249137,2003-06-01,2006-02-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1XY,No,51.809938,-0.188302,524996,213919,TL249139,1998-12-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1ZD,No,51.809938,-0.188302,524996,213919,TL249139,1997-12-01,1999-06-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1ZG,No,51.809501,-0.188494,524984,213870,TL249138,1998-06-01,2000-09-01,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1ZH,No,51.809938,-0.188302,524996,213919,TL249139,1998-06-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1ZJ,No,51.809938,-0.188302,524996,213919,TL249139,1998-06-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 1ZL,No,51.809938,-0.188302,524996,213919,TL249139,1998-06-01,1999-12-01,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 2AB,No,51.797981,-0.181442,525502,212601,TL255126,1980-01-01,1998-12-01,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 2AF,Yes,51.802179,-0.179039,525656,213072,TL256130,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AG,Yes,51.802786,-0.179929,525593,213138,TL255131,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 2AH,Yes,51.803786,-0.177713,525743,213253,TL257132,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AJ,Yes,51.803866,-0.174765,525946,213267,TL259132,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AL,Yes,51.803343,-0.174656,525955,213209,TL259132,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AN,Yes,51.803059,-0.175508,525897,213176,TL258131,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AP,Yes,51.803919,-0.175836,525872,213271,TL258132,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AQ,Yes,51.804165,-0.178350,525698,213294,TL256132,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2AR,Yes,51.803642,-0.177153,525782,213238,TL257132,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AS,Yes,51.802572,-0.177124,525787,213119,TL257131,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AT,Yes,51.802890,-0.177908,525732,213153,TL257131,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AU,Yes,51.802971,-0.176208,525849,213165,TL258131,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AW,Yes,51.803576,-0.175197,525917,213234,TL259132,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AX,Yes,51.802890,-0.173281,526051,213161,TL260131,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2AY,Yes,51.800917,-0.174188,525994,212940,TL259129,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2AZ,Yes,51.798885,-0.173052,526078,212716,TL260127,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2BA,Yes,51.799115,-0.172230,526134,212743,TL261127,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2BB,Yes,51.798868,-0.172559,526112,212715,TL261127,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2BD,Yes,51.799482,-0.173898,526018,212781,TL260127,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2BE,Yes,51.799858,-0.173737,526028,212823,TL260128,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2BF,Yes,51.800627,-0.171719,526165,212912,TL261129,2000-06-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2BG,Yes,51.800443,-0.173235,526061,212889,TL260128,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2BH,Yes,51.798224,-0.182607,525421,212626,TL254126,1980-01-01,,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 2BJ,Yes,51.802203,-0.175369,525909,213081,TL259130,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2BL,Yes,51.802450,-0.174503,525968,213110,TL259131,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2BN,Yes,51.801541,-0.175584,525896,213007,TL258130,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2BP,Yes,51.801276,-0.174768,525953,212979,TL259129,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2BQ,Yes,51.801201,-0.172204,526130,212975,TL261129,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2BS,Yes,51.798459,-0.172286,526132,212670,TL261126,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2BU,No,51.798157,-0.181754,525480,212620,TL254126,1981-06-01,2005-05-01,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 2BW,Yes,51.801714,-0.173967,526007,213029,TL260130,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2BX,No,51.799549,-0.170080,526281,212795,TL262127,1992-08-01,1999-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2DD,No,51.797981,-0.181442,525502,212601,TL255126,1983-01-01,2004-02-01,"Welwyn Hatfield, unparished area",84,England,2025-07-23,Imputed by ONS by reference to surrounding postcode grid references,E01023912,Welwyn Hatfield 004A,E01023912,Welwyn Hatfield 004A
AL7 2DE,No,51.801418,-0.171151,526202,213001,TL262130,1983-01-01,1994-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2DF,No,51.799549,-0.170080,526281,212795,TL262127,1995-12-01,1999-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2DG,Yes,51.804868,-0.173260,526047,213381,TL260133,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DH,Yes,51.804944,-0.172357,526109,213391,TL261133,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DJ,Yes,51.805623,-0.173853,526004,213464,TL260134,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DL,Yes,51.805058,-0.175109,525919,213399,TL259133,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DN,Yes,51.804780,-0.174583,525956,213369,TL259133,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DP,Yes,51.803771,-0.173870,526008,213258,TL260132,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DQ,Yes,51.805356,-0.173428,526034,213435,TL260134,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DR,Yes,51.803956,-0.172470,526104,213281,TL261132,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DS,Yes,51.805520,-0.175293,525905,213450,TL259134,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DT,No,51.799584,-0.170050,526283,212799,TL262127,1997-06-01,1998-06-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2DU,Yes,51.806074,-0.173893,526000,213514,TL259135,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DW,Yes,51.804372,-0.174338,525974,213324,TL259133,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DX,Yes,51.805963,-0.172577,526091,213504,TL260135,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DY,Yes,51.805928,-0.171490,526166,213502,TL261135,1980-01-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2DZ,Yes,51.805839,-0.170943,526204,213493,TL262134,1980-01-01,,"Welwyn Hatfield, unparished area",76,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2EA,Yes,51.805733,-0.169888,526277,213483,TL262134,1980-01-01,,"Welwyn Hatfield, unparished area",74,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2EB,Yes,51.804738,-0.170146,526262,213372,TL262133,1980-01-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2ED,Yes,51.808415,-0.173551,526017,213775,TL260137,1980-01-01,,"Welwyn Hatfield, unparished area",75,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2EE,Yes,51.805025,-0.170657,526226,213403,TL262134,1980-01-01,,"Welwyn Hatfield, unparished area",76,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2EF,Yes,51.804703,-0.171888,526142,213365,TL261133,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2EG,Yes,51.804574,-0.170559,526234,213353,TL262133,1980-01-01,,"Welwyn Hatfield, unparished area",77,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2EH,Yes,51.803304,-0.172177,526126,213209,TL261132,1980-01-01,,"Welwyn Hatfield, unparished area",78,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2EJ,Yes,51.802562,-0.171264,526191,213128,TL261131,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2EL,Yes,51.801844,-0.170220,526265,213050,TL262130,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2EN,Yes,51.801640,-0.170982,526213,213026,TL262130,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2EP,Yes,51.800201,-0.170344,526261,212867,TL262128,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2EQ,Yes,51.802687,-0.172390,526113,213140,TL261131,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2ER,Yes,51.800935,-0.171344,526190,212947,TL261129,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2ES,Yes,51.799785,-0.171956,526151,212818,TL261128,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2ET,No,51.799549,-0.170080,526281,212795,TL262127,1997-06-01,1998-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2EU,Yes,51.799352,-0.170727,526237,212772,TL262127,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2EW,Yes,51.802011,-0.171127,526202,213067,TL262130,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2EX,Yes,51.798961,-0.171032,526217,212728,TL262127,1980-01-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2EZ,No,51.799584,-0.170050,526283,212799,TL262127,1996-12-01,1997-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2FD,Yes,51.801503,-0.180677,525545,212994,TL255129,2009-10-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2FE,Yes,51.800918,-0.180076,525588,212930,TL255129,2014-11-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2GA,No,51.799549,-0.170080,526281,212795,TL262127,1996-12-01,1998-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2HA,Yes,51.801536,-0.168318,526397,213019,TL263130,1980-01-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2HB,Yes,51.803013,-0.170187,526264,213180,TL262131,1980-01-01,,"Welwyn Hatfield, unparished area",80,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2HD,Yes,51.803583,-0.171034,526204,213242,TL262132,1980-01-01,,"Welwyn Hatfield, unparished area",79,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023913,Welwyn Hatfield 004B,E01023913,Welwyn Hatfield 004B
AL7 2HE,Yes,51.801177,-0.169507,526316,212977,TL263129,1980-01-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2LU,Yes,51.799053,-0.177541,525768,212727,TL257127,1986-04-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023951,Welwyn Hatfield 005B,E01023951,Welwyn Hatfield 005B
AL7 2LX,Yes,51.799290,-0.169598,526315,212767,TL263127,1987-04-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2LY,Yes,51.799531,-0.169472,526323,212794,TL263127,1987-04-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2LZ,Yes,51.799376,-0.168797,526370,212778,TL263127,1987-04-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2NA,Yes,51.799811,-0.168460,526392,212827,TL263128,1987-04-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2NB,Yes,51.799709,-0.169943,526290,212813,TL262128,1987-04-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2ND,Yes,51.798943,-0.169873,526297,212728,TL262127,1987-04-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2NE,Yes,51.798793,-0.170590,526248,212710,TL262127,1987-04-01,,"Welwyn Hatfield, unparished area",83,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2NF,Yes,51.799907,-0.169413,526326,212836,TL263128,1987-04-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2NG,Yes,51.799811,-0.167851,526434,212828,TL264128,1987-10-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2NH,Yes,51.800881,-0.169026,526350,212945,TL263129,1987-04-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2NJ,Yes,51.800315,-0.167308,526470,212885,TL264128,1987-04-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2NL,Yes,51.800084,-0.168623,526380,212857,TL263128,1987-04-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2NN,Yes,51.801100,-0.166319,526536,212974,TL265129,1990-02-01,,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2NP,Yes,51.802040,-0.166600,526514,213078,TL265130,1990-02-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2NQ,Yes,51.800492,-0.168258,526404,212903,TL264129,1987-04-01,,"Welwyn Hatfield, unparished area",81,England,2025-07-23,Within the building of the matched address closest to the postcode mean,E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2QP,No,51.799549,-0.170080,526281,212795,TL262127,1994-05-01,1999-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2QR,No,51.799549,-0.170080,526281,212795,TL262127,1995-07-01,1999-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2XL,No,51.798745,-0.172709,526102,212701,TL261127,1990-07-01,1991-12-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023952,Welwyn Hatfield 005C,E01023952,Welwyn Hatfield 005C
AL7 2ZE,No,51.799549,-0.170080,526281,212795,TL262127,1998-06-01,2001-05-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2ZH,No,51.799549,-0.170080,526281,212795,TL262127,1999-06-01,2001-01-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2ZJ,No,51.799549,-0.170080,526281,212795,TL262127,1999-06-01,2001-01-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2ZL,No,51.799549,-0.170080,526281,212795,TL262127,1999-12-01,2001-07-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2ZX,No,51.799549,-0.170080,526281,212795,TL262127,1999-12-01,2001-07-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A
AL7 2ZY,No,51.799549,-0.170080,526281,212795,TL262127,1999-12-01,2000-06-01,"Welwyn Hatfield, unparished area",82,England,2025-07-23,Postcode sector mean (mainly PO Boxes),E01023950,Welwyn Hatfield 005A,E01023950,Welwyn Hatfield 005A