{
  "url": "https://openproperties.uk/al9/park-close/18",
  "address_path": "al9/park-close/18",
  "paon": "18",
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  "street": "PARK CLOSE",
  "locality": null,
  "town_city": "HATFIELD",
  "district": "WELWYN HATFIELD",
  "county": "HERTFORDSHIRE",
  "postcode": "AL9 5AY",
  "postcodes": [
    "AL9 5AY"
  ],
  "latitude": 51.7630797858893,
  "longitude": -0.2127797613288504,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "2005-09-16",
  "last_sale_date": "2013-10-04",
  "last_price": 222500,
  "truncated": false,
  "sales": [
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      "url": "https://openproperties.uk/al9/park-close/18/7ffca8d6-232d-48ac-b925-3700e82c6ef9",
      "transaction_id": "7FFCA8D6-232D-48AC-B925-3700E82C6EF9",
      "price": 222500,
      "date_of_transfer": "2013-10-04",
      "postcode": "AL9 5AY",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "18",
      "saon": null,
      "street": "PARK CLOSE",
      "locality": null,
      "town_city": "HATFIELD",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al9/park-close/18",
      "property_url": "https://openproperties.uk/al9/park-close/18"
    },
    {
      "url": "https://openproperties.uk/al9/park-close/18/fc1ff017-2d1e-4e56-933e-8c259e819448",
      "transaction_id": "FC1FF017-2D1E-4E56-933E-8C259E819448",
      "price": 186500,
      "date_of_transfer": "2005-09-16",
      "postcode": "AL9 5AY",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "18",
      "saon": null,
      "street": "PARK CLOSE",
      "locality": "HATFIELD",
      "town_city": "HATFIELD",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al9/park-close/18",
      "property_url": "https://openproperties.uk/al9/park-close/18"
    }
  ],
  "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
    }
  ]
}