{
  "url": "https://openproperties.uk/dl3/blackwell/4",
  "address_path": "dl3/blackwell/4",
  "paon": "4",
  "saon": null,
  "street": "BLACKWELL",
  "locality": null,
  "town_city": "DARLINGTON",
  "district": "DARLINGTON",
  "county": "DARLINGTON",
  "postcode": "DL3 8QY",
  "postcodes": [
    "DL3 8QY"
  ],
  "latitude": 54.50857438079071,
  "longitude": -1.5770924191744309,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "1998-10-19",
  "last_sale_date": "2010-08-25",
  "last_price": 217500,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/dl3/blackwell/4/27f5859a-9fb1-46f3-8f42-fb46025b5afd",
      "transaction_id": "27F5859A-9FB1-46F3-8F42-FB46025B5AFD",
      "price": 217500,
      "date_of_transfer": "2010-08-25",
      "postcode": "DL3 8QY",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "4",
      "saon": null,
      "street": "BLACKWELL",
      "locality": null,
      "town_city": "DARLINGTON",
      "district": "DARLINGTON",
      "county": "DARLINGTON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "dl3/blackwell/4",
      "property_url": "https://openproperties.uk/dl3/blackwell/4"
    },
    {
      "url": "https://openproperties.uk/dl3/blackwell/4/7163d2d5-63b2-4c8a-8667-c92e04b233ce",
      "transaction_id": "7163D2D5-63B2-4C8A-8667-C92E04B233CE",
      "price": 79000,
      "date_of_transfer": "1998-10-19",
      "postcode": "DL3 8QY",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "4",
      "saon": null,
      "street": "BLACKWELL",
      "locality": "DARLINGTON",
      "town_city": "DARLINGTON",
      "district": "DARLINGTON",
      "county": "DARLINGTON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "dl3/blackwell/4",
      "property_url": "https://openproperties.uk/dl3/blackwell/4"
    }
  ],
  "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
    }
  ]
}