{
  "url": "https://openproperties.uk/w9/castellain-road/1a",
  "address_path": "w9/castellain-road/1a",
  "paon": "1A",
  "saon": null,
  "street": "CASTELLAIN ROAD",
  "locality": null,
  "town_city": "LONDON",
  "district": "CITY OF WESTMINSTER",
  "county": "GREATER LONDON",
  "postcode": "W9 1EY",
  "postcodes": [
    "W9 1EY"
  ],
  "latitude": 51.524900215040134,
  "longitude": -0.18628387995098702,
  "location_precision": "postcode_centroid",
  "sale_count": 3,
  "first_sale_date": "1999-11-17",
  "last_sale_date": "2010-11-10",
  "last_price": 1275000,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/w9/castellain-road/1a/2833d575-e165-4999-bc7c-e0d0d0464dca",
      "transaction_id": "2833D575-E165-4999-BC7C-E0D0D0464DCA",
      "price": 1275000,
      "date_of_transfer": "2010-11-10",
      "postcode": "W9 1EY",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "1A",
      "saon": null,
      "street": "CASTELLAIN ROAD",
      "locality": null,
      "town_city": "LONDON",
      "district": "CITY OF WESTMINSTER",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "w9/castellain-road/1a",
      "property_url": "https://openproperties.uk/w9/castellain-road/1a"
    },
    {
      "url": "https://openproperties.uk/w9/castellain-road/1a/38262fd9-4969-41f4-b755-09dcb61b4d36",
      "transaction_id": "38262FD9-4969-41F4-B755-09DCB61B4D36",
      "price": 1200000,
      "date_of_transfer": "2010-04-12",
      "postcode": "W9 1EY",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "1A",
      "saon": null,
      "street": "CASTELLAIN ROAD",
      "locality": null,
      "town_city": "LONDON",
      "district": "CITY OF WESTMINSTER",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "w9/castellain-road/1a",
      "property_url": "https://openproperties.uk/w9/castellain-road/1a"
    },
    {
      "url": "https://openproperties.uk/w9/castellain-road/1a/a8b4d122-8793-4861-9a2f-20c92d66ee07",
      "transaction_id": "A8B4D122-8793-4861-9A2F-20C92D66EE07",
      "price": 553000,
      "date_of_transfer": "1999-11-17",
      "postcode": "W9 1EY",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "1A",
      "saon": null,
      "street": "CASTELLAIN ROAD",
      "locality": null,
      "town_city": "LONDON",
      "district": "CITY OF WESTMINSTER",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "w9/castellain-road/1a",
      "property_url": "https://openproperties.uk/w9/castellain-road/1a"
    }
  ],
  "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
    }
  ]
}