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      "address_path": "sw1x/chesham-street/chalfont-house-19-21/flat-28",
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    {
      "url": "https://openproperties.uk/sw1x/chesham-street/chalfont-house-19-21/flat-28/d20c86be-c0ac-4f55-953c-bb7110fa96c6",
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      "price": 1600000,
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      "saon": "FLAT 28",
      "street": "CHESHAM STREET",
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      "address_path": "sw1x/chesham-street/chalfont-house-19-21/flat-28",
      "property_url": "https://openproperties.uk/sw1x/chesham-street/chalfont-house-19-21/flat-28"
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  ],
  "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
    }
  ]
}