{
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      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
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      "property_url": "https://openproperties.uk/sg6/marmet-avenue/69"
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      "town_city": "LETCHWORTH GARDEN CITY",
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      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sg6/marmet-avenue/69",
      "property_url": "https://openproperties.uk/sg6/marmet-avenue/69"
    },
    {
      "url": "https://openproperties.uk/sg6/marmet-avenue/69/6f281b4d-30cd-44c8-b8c6-d14d293dc43f",
      "transaction_id": "6F281B4D-30CD-44C8-B8C6-D14D293DC43F",
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      "date_of_transfer": "2003-05-23",
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      "property_type": "F",
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      "paon": "69",
      "saon": null,
      "street": "MARMET AVENUE",
      "locality": "LETCHWORTH GARDEN CITY",
      "town_city": "LETCHWORTH GARDEN CITY",
      "district": "NORTH HERTFORDSHIRE",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sg6/marmet-avenue/69",
      "property_url": "https://openproperties.uk/sg6/marmet-avenue/69"
    },
    {
      "url": "https://openproperties.uk/sg6/marmet-avenue/69/14640f64-a228-4ba8-9aab-cd63e806f5c6",
      "transaction_id": "14640F64-A228-4BA8-9AAB-CD63E806F5C6",
      "price": 23995,
      "date_of_transfer": "1996-06-27",
      "postcode": "SG6 4QF",
      "property_type": "F",
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      "new_build": true,
      "duration": "L",
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      "paon": "69",
      "saon": null,
      "street": "MARMET AVENUE",
      "locality": "LETCHWORTH GARDEN CITY",
      "town_city": "LETCHWORTH GARDEN CITY",
      "district": "NORTH HERTFORDSHIRE",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sg6/marmet-avenue/69",
      "property_url": "https://openproperties.uk/sg6/marmet-avenue/69"
    }
  ],
  "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
    }
  ]
}