{
  "url": "https://openproperties.uk/w11/holland-park-avenue/155/basement-flat",
  "address_path": "w11/holland-park-avenue/155/basement-flat",
  "paon": "155",
  "saon": "BASEMENT FLAT",
  "street": "HOLLAND PARK AVENUE",
  "locality": "LONDON",
  "town_city": "LONDON",
  "district": "KENSINGTON AND CHELSEA",
  "county": "GREATER LONDON",
  "postcode": "W11 4UX",
  "postcodes": [
    "W11 4UX"
  ],
  "latitude": 51.505470397066276,
  "longitude": -0.21106168098991915,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "1997-08-22",
  "last_sale_date": "2003-11-14",
  "last_price": 430000,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/w11/holland-park-avenue/155/basement-flat/e86147fd-f73e-4041-9717-05d979e8da9d",
      "transaction_id": "E86147FD-F73E-4041-9717-05D979E8DA9D",
      "price": 430000,
      "date_of_transfer": "2003-11-14",
      "postcode": "W11 4UX",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "155",
      "saon": "BASEMENT FLAT",
      "street": "HOLLAND PARK AVENUE",
      "locality": "LONDON",
      "town_city": "LONDON",
      "district": "KENSINGTON AND CHELSEA",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "w11/holland-park-avenue/155/basement-flat",
      "property_url": "https://openproperties.uk/w11/holland-park-avenue/155/basement-flat"
    },
    {
      "url": "https://openproperties.uk/w11/holland-park-avenue/155/basement-flat/f70290fa-17df-4fbe-b7fc-740d625ebd78",
      "transaction_id": "F70290FA-17DF-4FBE-B7FC-740D625EBD78",
      "price": 257500,
      "date_of_transfer": "1997-08-22",
      "postcode": "W11 4UX",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "155",
      "saon": "BASEMENT FLAT",
      "street": "HOLLAND PARK AVENUE",
      "locality": "LONDON",
      "town_city": "LONDON",
      "district": "KENSINGTON AND CHELSEA",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "w11/holland-park-avenue/155/basement-flat",
      "property_url": "https://openproperties.uk/w11/holland-park-avenue/155/basement-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
    }
  ]
}