{
  "url": "https://openproperties.uk/w1k/mount-street/78",
  "address_path": "w1k/mount-street/78",
  "paon": "78",
  "saon": null,
  "street": "MOUNT STREET",
  "locality": "LONDON",
  "town_city": "LONDON",
  "district": "CITY OF WESTMINSTER",
  "county": "GREATER LONDON",
  "postcode": "W1K 2SL",
  "postcodes": [
    "W1K 2SL"
  ],
  "latitude": 51.50918082541354,
  "longitude": -0.15282690691913373,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "1998-12-30",
  "last_sale_date": "2008-06-04",
  "last_price": 1000001,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/w1k/mount-street/78/2e24c2df-6c26-4f0f-a423-6f5a3df0ccba",
      "transaction_id": "2E24C2DF-6C26-4F0F-A423-6F5A3DF0CCBA",
      "price": 1000001,
      "date_of_transfer": "2008-06-04",
      "postcode": "W1K 2SL",
      "property_type": "T",
      "property_type_display": "Terraced",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "78",
      "saon": null,
      "street": "MOUNT 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": "w1k/mount-street/78",
      "property_url": "https://openproperties.uk/w1k/mount-street/78"
    },
    {
      "url": "https://openproperties.uk/w1k/mount-street/78/cd8b9158-93e9-47bf-a355-e11a4f70c583",
      "transaction_id": "CD8B9158-93E9-47BF-A355-E11A4F70C583",
      "price": 3433500,
      "date_of_transfer": "1998-12-30",
      "postcode": "W1K 2SL",
      "property_type": "T",
      "property_type_display": "Terraced",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "78",
      "saon": null,
      "street": "MOUNT 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": "w1k/mount-street/78",
      "property_url": "https://openproperties.uk/w1k/mount-street/78"
    }
  ],
  "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
    }
  ]
}