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  "postcodes": [
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      "duration": "F",
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      "paon": "73",
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      "street": "ST HELENS AVENUE",
      "locality": null,
      "town_city": "SWANSEA",
      "district": "SWANSEA",
      "county": "SWANSEA",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sa1/st-helens-avenue/73",
      "property_url": "https://openproperties.uk/sa1/st-helens-avenue/73"
    },
    {
      "url": "https://openproperties.uk/sa1/st-helens-avenue/73/7c9e8154-ddd4-4e4d-8bb4-b7b289ee2371",
      "transaction_id": "7C9E8154-DDD4-4E4D-8BB4-B7B289EE2371",
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      "date_of_transfer": "2001-08-17",
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      "property_type": "T",
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      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "73",
      "saon": null,
      "street": "ST HELENS AVENUE",
      "locality": "SWANSEA",
      "town_city": "SWANSEA",
      "district": "SWANSEA",
      "county": "SWANSEA",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sa1/st-helens-avenue/73",
      "property_url": "https://openproperties.uk/sa1/st-helens-avenue/73"
    },
    {
      "url": "https://openproperties.uk/sa1/st-helens-avenue/73/6dbf3ced-aee5-4a7c-9e4f-b55573608695",
      "transaction_id": "6DBF3CED-AEE5-4A7C-9E4F-B55573608695",
      "price": 62000,
      "date_of_transfer": "2000-03-09",
      "postcode": "SA1 4NN",
      "property_type": "T",
      "property_type_display": "Terraced",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "73",
      "saon": null,
      "street": "ST HELENS AVENUE",
      "locality": null,
      "town_city": "SWANSEA",
      "district": "SWANSEA",
      "county": "SWANSEA",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sa1/st-helens-avenue/73",
      "property_url": "https://openproperties.uk/sa1/st-helens-avenue/73"
    }
  ],
  "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
    }
  ]
}