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      "address_path": "al6/church-street/29",
      "property_url": "https://openproperties.uk/al6/church-street/29"
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      "url": "https://openproperties.uk/al6/church-street/29/bd510f64-9b6f-4fa3-acef-98c2d6b02983",
      "transaction_id": "BD510F64-9B6F-4FA3-ACEF-98C2D6B02983",
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      "date_of_transfer": "1997-09-29",
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      "paon": "29",
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      "street": "CHURCH STREET",
      "locality": "WELWYN",
      "town_city": "WELWYN",
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      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al6/church-street/29",
      "property_url": "https://openproperties.uk/al6/church-street/29"
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    {
      "url": "https://openproperties.uk/al6/church-street/29/23a03b79-2088-47f9-94d5-06b99fa7732a",
      "transaction_id": "23A03B79-2088-47F9-94D5-06B99FA7732A",
      "price": 67000,
      "date_of_transfer": "1996-02-23",
      "postcode": "AL6 9LW",
      "property_type": "T",
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      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "29",
      "saon": null,
      "street": "CHURCH STREET",
      "locality": "WELWYN",
      "town_city": "WELWYN",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al6/church-street/29",
      "property_url": "https://openproperties.uk/al6/church-street/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
    }
  ]
}