{
  "url": "https://openproperties.uk/al5/cornwall-road/29",
  "address_path": "al5/cornwall-road/29",
  "paon": "29",
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  "street": "CORNWALL ROAD",
  "locality": "HARPENDEN",
  "town_city": "HARPENDEN",
  "district": "ST ALBANS",
  "county": "HERTFORDSHIRE",
  "postcode": "AL5 4TQ",
  "postcodes": [
    "AL5 4TQ"
  ],
  "latitude": 51.818211750479584,
  "longitude": -0.3513938080121287,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "1997-06-25",
  "last_sale_date": "2001-10-31",
  "last_price": 370000,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/al5/cornwall-road/29/684a4231-a688-4a0b-8ca0-1aa563bb2ce0",
      "transaction_id": "684A4231-A688-4A0B-8CA0-1AA563BB2CE0",
      "price": 370000,
      "date_of_transfer": "2001-10-31",
      "postcode": "AL5 4TQ",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "29",
      "saon": null,
      "street": "CORNWALL ROAD",
      "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/cornwall-road/29",
      "property_url": "https://openproperties.uk/al5/cornwall-road/29"
    },
    {
      "url": "https://openproperties.uk/al5/cornwall-road/29/6be534f6-8926-4c3e-8e8b-bd69a93cfda3",
      "transaction_id": "6BE534F6-8926-4C3E-8E8B-BD69A93CFDA3",
      "price": 132500,
      "date_of_transfer": "1997-06-25",
      "postcode": "AL5 4TQ",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "29",
      "saon": null,
      "street": "CORNWALL ROAD",
      "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/cornwall-road/29",
      "property_url": "https://openproperties.uk/al5/cornwall-road/29"
    }
  ],
  "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
    }
  ]
}