{
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  "town_city": "BARNET",
  "district": "BARNET",
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  "postcodes": [
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      "date_of_transfer": "2015-07-14",
      "postcode": "EN4 8LY",
      "property_type": "S",
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      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "77",
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      "street": "DERWENT AVENUE",
      "locality": null,
      "town_city": "BARNET",
      "district": "BARNET",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "en4/derwent-avenue/77",
      "property_url": "https://openproperties.uk/en4/derwent-avenue/77"
    },
    {
      "url": "https://openproperties.uk/en4/derwent-avenue/77/fed6e3ae-03f3-4a60-a28c-395bbbf3d8fc",
      "transaction_id": "FED6E3AE-03F3-4A60-A28C-395BBBF3D8FC",
      "price": 412000,
      "date_of_transfer": "2013-12-20",
      "postcode": "EN4 8LY",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "77",
      "saon": null,
      "street": "DERWENT AVENUE",
      "locality": null,
      "town_city": "BARNET",
      "district": "BARNET",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "en4/derwent-avenue/77",
      "property_url": "https://openproperties.uk/en4/derwent-avenue/77"
    },
    {
      "url": "https://openproperties.uk/en4/derwent-avenue/77/6e68bb48-a97e-4221-bc36-bd9cf037aad4",
      "transaction_id": "6E68BB48-A97E-4221-BC36-BD9CF037AAD4",
      "price": 250000,
      "date_of_transfer": "2006-06-22",
      "postcode": "EN4 8LY",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "77",
      "saon": null,
      "street": "DERWENT AVENUE",
      "locality": "BARNET",
      "town_city": "BARNET",
      "district": "BARNET",
      "county": "GREATER LONDON",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "en4/derwent-avenue/77",
      "property_url": "https://openproperties.uk/en4/derwent-avenue/77"
    }
  ],
  "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
    }
  ]
}