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      "ppd_category_type": "A",
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      "address_path": "wd7/harper-lane/heritage-cottages/3",
      "property_url": "https://openproperties.uk/wd7/harper-lane/heritage-cottages/3"
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    {
      "url": "https://openproperties.uk/wd7/harper-lane/heritage-cottages/3/a93f1058-c064-4b44-8f09-9956e85bccfe",
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      "date_of_transfer": "2001-10-29",
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      "town_city": "RADLETT",
      "district": "ST ALBANS",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "wd7/harper-lane/heritage-cottages/3",
      "property_url": "https://openproperties.uk/wd7/harper-lane/heritage-cottages/3"
    },
    {
      "url": "https://openproperties.uk/wd7/harper-lane/heritage-cottages/3/abbbd68d-b529-49ec-bb08-d2838553017d",
      "transaction_id": "ABBBD68D-B529-49EC-BB08-D2838553017D",
      "price": 111250,
      "date_of_transfer": "1999-01-08",
      "postcode": "WD7 9HA",
      "property_type": "T",
      "property_type_display": "Terraced",
      "new_build": false,
      "duration": "F",
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      "paon": "HERITAGE COTTAGES",
      "saon": "3",
      "street": "HARPER LANE",
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      "district": "ST ALBANS",
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      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "wd7/harper-lane/heritage-cottages/3",
      "property_url": "https://openproperties.uk/wd7/harper-lane/heritage-cottages/3"
    }
  ],
  "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
    }
  ]
}