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      "url": "https://openproperties.uk/sw13/castelnau/castelnau-mansions/flat-37/dc40046d-b8ac-4f0c-85c1-e1d42d299b65",
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      "date_of_transfer": "1996-06-11",
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      "duration": "L",
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      "street": "CASTELNAU",
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      "district": "RICHMOND UPON THAMES",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
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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
    }
  ]
}