{
  "url": "https://openproperties.uk/hp4/castle-street/41",
  "address_path": "hp4/castle-street/41",
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  "street": "CASTLE STREET",
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  "town_city": "BERKHAMSTED",
  "district": "DACORUM",
  "county": "HERTFORDSHIRE",
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  "postcodes": [
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      "transaction_id": "EFD472D2-D79F-4588-A311-4ED85631D15E",
      "price": 510000,
      "date_of_transfer": "2006-01-06",
      "postcode": "HP4 2DW",
      "property_type": "T",
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      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "41",
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      "street": "CASTLE STREET",
      "locality": "BERKHAMSTED",
      "town_city": "BERKHAMSTED",
      "district": "DACORUM",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp4/castle-street/41",
      "property_url": "https://openproperties.uk/hp4/castle-street/41"
    },
    {
      "url": "https://openproperties.uk/hp4/castle-street/41/1eab0063-c49d-4daa-86d7-89f62bb614b0",
      "transaction_id": "1EAB0063-C49D-4DAA-86D7-89F62BB614B0",
      "price": 475000,
      "date_of_transfer": "2003-05-01",
      "postcode": "HP4 2DW",
      "property_type": "T",
      "property_type_display": "Terraced",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "41",
      "saon": null,
      "street": "CASTLE STREET",
      "locality": "BERKHAMSTED",
      "town_city": "BERKHAMSTED",
      "district": "DACORUM",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp4/castle-street/41",
      "property_url": "https://openproperties.uk/hp4/castle-street/41"
    },
    {
      "url": "https://openproperties.uk/hp4/castle-street/41/80a5b584-3060-4d23-b4cb-c053cede2fb0",
      "transaction_id": "80A5B584-3060-4D23-B4CB-C053CEDE2FB0",
      "price": 188055,
      "date_of_transfer": "1997-09-12",
      "postcode": "HP4 2DW",
      "property_type": "T",
      "property_type_display": "Terraced",
      "new_build": true,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "41",
      "saon": null,
      "street": "CASTLE STREET",
      "locality": "BERKHAMSTED",
      "town_city": "BERKHAMSTED",
      "district": "DACORUM",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp4/castle-street/41",
      "property_url": "https://openproperties.uk/hp4/castle-street/41"
    }
  ],
  "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
    }
  ]
}