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      "ppd_category_type": "A",
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      "address_path": "wd19/hampermill-lane/197",
      "property_url": "https://openproperties.uk/wd19/hampermill-lane/197"
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      "url": "https://openproperties.uk/wd19/hampermill-lane/197/3b808027-ceeb-4154-a86a-823a0e86b4f8",
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      "paon": "197",
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      "street": "HAMPERMILL LANE",
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      "town_city": "WATFORD",
      "district": "THREE RIVERS",
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      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "wd19/hampermill-lane/197",
      "property_url": "https://openproperties.uk/wd19/hampermill-lane/197"
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    {
      "url": "https://openproperties.uk/wd19/hampermill-lane/197/f2f1be83-55e0-4146-bbf6-d84b66a2070a",
      "transaction_id": "F2F1BE83-55E0-4146-BBF6-D84B66A2070A",
      "price": 338000,
      "date_of_transfer": "2007-02-15",
      "postcode": "WD19 4PJ",
      "property_type": "D",
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      "duration": "F",
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      "paon": "197",
      "saon": null,
      "street": "HAMPERMILL LANE",
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      "town_city": "WATFORD",
      "district": "THREE RIVERS",
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      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "wd19/hampermill-lane/197",
      "property_url": "https://openproperties.uk/wd19/hampermill-lane/197"
    }
  ],
  "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
    }
  ]
}