{
  "url": "https://openproperties.uk/al9/northcotts/21/flat",
  "address_path": "al9/northcotts/21/flat",
  "paon": "21",
  "saon": "FLAT",
  "street": "NORTHCOTTS",
  "locality": "HATFIELD",
  "town_city": "HATFIELD",
  "district": "WELWYN HATFIELD",
  "county": "HERTFORDSHIRE",
  "postcode": "AL9 5ES",
  "postcodes": [
    "AL9 5ES"
  ],
  "latitude": 51.765282077633785,
  "longitude": -0.21450429402435198,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "1995-01-31",
  "last_sale_date": "1997-07-11",
  "last_price": 58000,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/al9/northcotts/21/flat/e3c2b094-aa09-442a-943a-8d681b1acc34",
      "transaction_id": "E3C2B094-AA09-442A-943A-8D681B1ACC34",
      "price": 58000,
      "date_of_transfer": "1997-07-11",
      "postcode": "AL9 5ES",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "21",
      "saon": "FLAT",
      "street": "NORTHCOTTS",
      "locality": "HATFIELD",
      "town_city": "HATFIELD",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al9/northcotts/21/flat",
      "property_url": "https://openproperties.uk/al9/northcotts/21/flat"
    },
    {
      "url": "https://openproperties.uk/al9/northcotts/21/flat/c8155be3-d59d-4158-922b-60fc2744cfaa",
      "transaction_id": "C8155BE3-D59D-4158-922B-60FC2744CFAA",
      "price": 47000,
      "date_of_transfer": "1995-01-31",
      "postcode": "AL9 5ES",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "21",
      "saon": "FLAT",
      "street": "NORTHCOTTS",
      "locality": "HATFIELD",
      "town_city": "HATFIELD",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al9/northcotts/21/flat",
      "property_url": "https://openproperties.uk/al9/northcotts/21/flat"
    }
  ],
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains HM Land Registry data © Crown copyright and database right. This data is licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right. Postcode locations are Code-Point Open centroids — they locate the postcode, not an individual building.",
  "provenance": [
    {
      "source": "HM Land Registry Price Paid Data",
      "source_url": "https://www.gov.uk/government/statistical-data-sets/price-paid-data-downloads",
      "retrieved_at": "2026-07-09T18:56:26.350736+00:00"
    },
    {
      "source": "OS Code-Point Open",
      "source_url": "https://osdatahub.os.uk/downloads/open/CodePointOpen",
      "retrieved_at": null
    }
  ]
}