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      "address_path": "ha4/masson-avenue/50a",
      "property_url": "https://openproperties.uk/ha4/masson-avenue/50a"
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    {
      "url": "https://openproperties.uk/ha4/masson-avenue/50a/544cdbda-0ff4-4985-a081-8a7aec101cf3",
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      "date_of_transfer": "2008-07-04",
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      "street": "MASSON AVENUE",
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      "town_city": "RUISLIP",
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      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "ha4/masson-avenue/50a",
      "property_url": "https://openproperties.uk/ha4/masson-avenue/50a"
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    {
      "url": "https://openproperties.uk/ha4/masson-avenue/50a/9e2557e6-3d96-4b16-975e-1aa3ce50579a",
      "transaction_id": "9E2557E6-3D96-4B16-975E-1AA3CE50579A",
      "price": 180000,
      "date_of_transfer": "2005-05-12",
      "postcode": "HA4 6QU",
      "property_type": "F",
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      "new_build": false,
      "duration": "L",
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      "paon": "50A",
      "saon": null,
      "street": "MASSON AVENUE",
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      "address_path": "ha4/masson-avenue/50a",
      "property_url": "https://openproperties.uk/ha4/masson-avenue/50a"
    }
  ],
  "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
    }
  ]
}