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      "last_sale_date": "2016-07-19",
      "last_price": 1480000,
      "url": "https://openproperties.uk/w1k/upper-grosvenor-street/46/flat-22"
    },
    {
      "paon": "46",
      "saon": "FLAT 23",
      "postcode": "W1K 2NW",
      "sale_count": 3,
      "first_sale_date": "1999-02-26",
      "last_sale_date": "2016-05-09",
      "last_price": 875000,
      "url": "https://openproperties.uk/w1k/upper-grosvenor-street/46/flat-23"
    },
    {
      "paon": "47",
      "saon": null,
      "postcode": "W1K 2NP",
      "sale_count": 2,
      "first_sale_date": "1999-02-26",
      "last_sale_date": "2020-05-15",
      "last_price": 17500000,
      "url": "https://openproperties.uk/w1k/upper-grosvenor-street/47"
    },
    {
      "paon": "48",
      "saon": null,
      "postcode": "W1K 2NR",
      "sale_count": 1,
      "first_sale_date": "2008-01-08",
      "last_sale_date": "2008-01-08",
      "last_price": 1270220,
      "url": "https://openproperties.uk/w1k/upper-grosvenor-street/48"
    }
  ],
  "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": null
  }
}