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      "duration": "F",
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      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sg1/grasmere/36",
      "property_url": "https://openproperties.uk/sg1/grasmere/36"
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      "url": "https://openproperties.uk/sg1/grasmere/36/0a847517-f0cd-4d33-9cc8-09bcf4af2897",
      "transaction_id": "0A847517-F0CD-4D33-9CC8-09BCF4AF2897",
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      "street": "GRASMERE",
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      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sg1/grasmere/36",
      "property_url": "https://openproperties.uk/sg1/grasmere/36"
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    {
      "url": "https://openproperties.uk/sg1/grasmere/36/f76d02f3-9836-49d0-aaca-456504b5ca04",
      "transaction_id": "F76D02F3-9836-49D0-AACA-456504B5CA04",
      "price": 151500,
      "date_of_transfer": "2009-05-22",
      "postcode": "SG1 6AU",
      "property_type": "T",
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      "duration": "F",
      "duration_display": "Freehold",
      "paon": "36",
      "saon": null,
      "street": "GRASMERE",
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      "town_city": "STEVENAGE",
      "district": "NORTH HERTFORDSHIRE",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sg1/grasmere/36",
      "property_url": "https://openproperties.uk/sg1/grasmere/36"
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  ],
  "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
    }
  ]
}