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      "address_path": "al3/harpenden-lane/32",
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      "street": "HARPENDEN LANE",
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      "address_path": "al3/harpenden-lane/32",
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      "price": 225000,
      "date_of_transfer": "2004-02-12",
      "postcode": "AL3 7PB",
      "property_type": "S",
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      "duration": "F",
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      "address_path": "al3/harpenden-lane/32",
      "property_url": "https://openproperties.uk/al3/harpenden-lane/32"
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  ],
  "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
    }
  ]
}