{"quality":"Within the building of the matched address closest to the postcode mean","constituency2024":"Harpenden and Berkhamsted","district":"St Albans","ward":"Harpenden West","wardCode":"E05013955","lsoaName":"St Albans 003C","lsoa":"E01023701","lsoa21Name":"St Albans 003C","lsoa21":"E01023701","county":"Hertfordshire","region":"East of England","country":"England","nationalPark":"","altitude":105,"ruralUrban":"Urban city and town","ttwa":"Luton","postTown":"Harpenden","builtUpArea":"Harpenden","inUse":"Yes","what3Words":"lamp.crisp.image","imd":29146,"imdDecile":9,"averageIncome":72500,"predominantPropertyType":"Flat","knownAddresses":["Flat 1, Sandridge House, 4 Gibbs Close, Harpenden","Flat 1, Welcombe House, 1 Gibbs Close, Harpenden","Flat 10, Sandridge House, 4 Gibbs Close, Harpenden","Flat 11, Sandridge House, 4 Gibbs Close, Harpenden","Flat 12, Sandridge House, 4 Gibbs Close, Harpenden","Flat 13, Sandridge House, 4 Gibbs Close, Harpenden","Flat 14, Sandridge House, 4 Gibbs 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Harpenden","propertyType":"Flat (leasehold)","date":"2024-11-14T00:00:00","price":1375000},{"address":"Flat 18, Sandridge House, 4 Gibbs Close, Harpenden","propertyType":"New build flat (leasehold)","date":"2021-05-14T00:00:00","price":1060000},{"address":"12 Gibbs Close, Harpenden","propertyType":"Terraced (freehold)","date":"2024-10-11T00:00:00","price":1295000},{"address":"12 Gibbs Close, Harpenden","propertyType":"New build terraced (freehold)","date":"2018-11-21T00:00:00","price":1350000},{"address":"13 Gibbs Close, Harpenden","propertyType":"Terraced (freehold)","date":"2024-04-26T00:00:00","price":980000},{"address":"13 Gibbs Close, Harpenden","propertyType":"New build terraced (freehold)","date":"2020-05-29T00:00:00","price":960000},{"address":"Flat 13, Sandridge House, 4 Gibbs Close, Harpenden","propertyType":"Flat (leasehold)","date":"2024-04-22T00:00:00","price":490000},{"address":"Flat 13, Sandridge House, 4 Gibbs Close, Harpenden","propertyType":"New build flat (leasehold)","date":"2020-03-13T00:00:00","price":600000},{"address":"Flat 1, Sandridge House, 4 Gibbs Close, Harpenden","propertyType":"Other (freehold)","date":"2021-10-21T00:00:00","price":307000},{"address":"Flat 1, Sandridge House, 4 Gibbs Close, Harpenden","propertyType":"New build flat (leasehold)","date":"2019-01-03T00:00:00","price":995000},{"address":"Flat 1, Welcombe House, 1 Gibbs Close, Harpenden","propertyType":"Other (freehold)","date":"2021-10-21T00:00:00","price":105915},{"address":"Flat 1, Welcombe House, 1 Gibbs Close, Harpenden","propertyType":"New build flat (leasehold)","date":"2019-12-03T00:00:00","price":1540000},{"address":"Flat 2, Welcombe House, 1 Gibbs Close, Harpenden","propertyType":"New build flat (leasehold)","date":"2021-08-27T00:00:00","price":1499000},{"address":"Flat 14, Sandridge House, 4 Gibbs Close, Harpenden","propertyType":"New build flat (leasehold)","date":"2021-08-25T00:00:00","price":850000},{"address":"Flat 4, Sandridge House, 4 Gibbs 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