{
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  "town_city": "HARPENDEN",
  "district": "ST ALBANS",
  "county": "HERTFORDSHIRE",
  "postcode": "AL5 3AG",
  "postcodes": [
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  "location_precision": "postcode_centroid",
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      "postcode": "AL5 3AG",
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      "duration": "F",
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      "paon": "35A",
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      "street": "ROUNDWOOD PARK",
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      "town_city": "HARPENDEN",
      "district": "ST ALBANS",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al5/roundwood-park/35a",
      "property_url": "https://openproperties.uk/al5/roundwood-park/35a"
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    {
      "url": "https://openproperties.uk/al5/roundwood-park/35a/5ce2f1e2-ea72-46a0-b4b4-9d6c2e9cb684",
      "transaction_id": "5CE2F1E2-EA72-46A0-B4B4-9D6C2E9CB684",
      "price": 1100000,
      "date_of_transfer": "2007-06-29",
      "postcode": "AL5 3AG",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "35A",
      "saon": null,
      "street": "ROUNDWOOD PARK",
      "locality": "HARPENDEN",
      "town_city": "HARPENDEN",
      "district": "ST ALBANS",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al5/roundwood-park/35a",
      "property_url": "https://openproperties.uk/al5/roundwood-park/35a"
    },
    {
      "url": "https://openproperties.uk/al5/roundwood-park/35a/5752e0ec-c60c-4b53-a4ef-4466ccf82622",
      "transaction_id": "5752E0EC-C60C-4B53-A4EF-4466CCF82622",
      "price": 285000,
      "date_of_transfer": "1996-09-06",
      "postcode": "AL5 3AG",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "35A",
      "saon": null,
      "street": "ROUNDWOOD PARK",
      "locality": "HARPENDEN",
      "town_city": "HARPENDEN",
      "district": "ST ALBANS",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al5/roundwood-park/35a",
      "property_url": "https://openproperties.uk/al5/roundwood-park/35a"
    }
  ],
  "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
    }
  ]
}