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      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp2/caernarvon-close/9",
      "property_url": "https://openproperties.uk/hp2/caernarvon-close/9"
    },
    {
      "url": "https://openproperties.uk/hp2/caernarvon-close/9/f916da8c-ecf5-4484-9724-59d28a4f1a27",
      "transaction_id": "F916DA8C-ECF5-4484-9724-59D28A4F1A27",
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      "date_of_transfer": "1999-11-03",
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      "property_type": "S",
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      "duration": "F",
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      "paon": "9",
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      "street": "CAERNARVON CLOSE",
      "locality": null,
      "town_city": "HEMEL HEMPSTEAD",
      "district": "DACORUM",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp2/caernarvon-close/9",
      "property_url": "https://openproperties.uk/hp2/caernarvon-close/9"
    },
    {
      "url": "https://openproperties.uk/hp2/caernarvon-close/9/cf652517-f940-4f3f-9507-9258b4f63adf",
      "transaction_id": "CF652517-F940-4F3F-9507-9258B4F63ADF",
      "price": 108000,
      "date_of_transfer": "1997-12-18",
      "postcode": "HP2 4AN",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
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      "paon": "9",
      "saon": null,
      "street": "CAERNARVON CLOSE",
      "locality": "HEMEL HEMPSTEAD",
      "town_city": "HEMEL HEMPSTEAD",
      "district": "DACORUM",
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      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp2/caernarvon-close/9",
      "property_url": "https://openproperties.uk/hp2/caernarvon-close/9"
    }
  ],
  "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
    }
  ]
}