{
  "url": "https://openproperties.uk/w1x/upper-grosvenor-street/17/flat-2",
  "address_path": "w1x/upper-grosvenor-street/17/flat-2",
  "paon": "17",
  "saon": "FLAT 2",
  "street": "UPPER GROSVENOR STREET",
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  "district": "CITY OF WESTMINSTER",
  "county": "GREATER LONDON",
  "postcode": "W1X 9PB",
  "postcodes": [
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  ],
  "latitude": null,
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  "location_precision": null,
  "sale_count": 3,
  "first_sale_date": "1995-05-31",
  "last_sale_date": "1999-09-07",
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      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "17",
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      "street": "UPPER GROSVENOR STREET",
      "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": "w1x/upper-grosvenor-street/17/flat-2",
      "property_url": "https://openproperties.uk/w1x/upper-grosvenor-street/17/flat-2"
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    {
      "url": "https://openproperties.uk/w1x/upper-grosvenor-street/17/flat-2/4ab83859-5d45-45c6-9530-05fc84bff45a",
      "transaction_id": "4AB83859-5D45-45C6-9530-05FC84BFF45A",
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      "date_of_transfer": "1997-09-30",
      "postcode": "W1X 9PB",
      "property_type": "F",
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      "paon": "17",
      "saon": "FLAT 2",
      "street": "UPPER GROSVENOR STREET",
      "locality": "LONDON",
      "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": "w1x/upper-grosvenor-street/17/flat-2",
      "property_url": "https://openproperties.uk/w1x/upper-grosvenor-street/17/flat-2"
    },
    {
      "url": "https://openproperties.uk/w1x/upper-grosvenor-street/17/flat-2/e1c394bd-0c03-4865-ab72-c88a76e47947",
      "transaction_id": "E1C394BD-0C03-4865-AB72-C88A76E47947",
      "price": 400000,
      "date_of_transfer": "1995-05-31",
      "postcode": "W1X 9PB",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "17",
      "saon": "FLAT 2",
      "street": "UPPER GROSVENOR STREET",
      "locality": "LONDON",
      "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": "w1x/upper-grosvenor-street/17/flat-2",
      "property_url": "https://openproperties.uk/w1x/upper-grosvenor-street/17/flat-2"
    }
  ],
  "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.",
  "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
    }
  ]
}