{
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  "town_city": "HATFIELD",
  "district": "WELWYN HATFIELD",
  "county": "HERTFORDSHIRE",
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  "postcodes": [
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  "location_precision": "postcode_centroid",
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      "date_of_transfer": "2013-12-09",
      "postcode": "AL9 7NN",
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      "duration": "L",
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      "paon": "30",
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      "street": "NASH CLOSE",
      "locality": "WELHAM GREEN",
      "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/nash-close/30",
      "property_url": "https://openproperties.uk/al9/nash-close/30"
    },
    {
      "url": "https://openproperties.uk/al9/nash-close/30/513f00a7-69a2-4e21-8b8e-06b9968ade29",
      "transaction_id": "513F00A7-69A2-4E21-8B8E-06B9968ADE29",
      "price": 111000,
      "date_of_transfer": "2009-12-04",
      "postcode": "AL9 7NN",
      "property_type": "F",
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      "saon": null,
      "street": "NASH CLOSE",
      "locality": "WELHAM GREEN",
      "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/nash-close/30",
      "property_url": "https://openproperties.uk/al9/nash-close/30"
    },
    {
      "url": "https://openproperties.uk/al9/nash-close/30/8cec8cd1-d6c7-4655-9738-138030d3bdcb",
      "transaction_id": "8CEC8CD1-D6C7-4655-9738-138030D3BDCB",
      "price": 59000,
      "date_of_transfer": "2000-08-04",
      "postcode": "AL9 7NN",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "30",
      "saon": null,
      "street": "NASH CLOSE",
      "locality": "WELHAM GREEN",
      "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/nash-close/30",
      "property_url": "https://openproperties.uk/al9/nash-close/30"
    }
  ],
  "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
    }
  ]
}