{
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  "address_path": "al1/london-road/sylvan-heights-141/flat-3",
  "paon": "SYLVAN HEIGHTS, 141",
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  "street": "LONDON ROAD",
  "locality": "ST. ALBANS",
  "town_city": "ST. ALBANS",
  "district": "ST ALBANS",
  "county": "HERTFORDSHIRE",
  "postcode": "AL1 1SX",
  "postcodes": [
    "AL1 1SX"
  ],
  "latitude": 51.742058856921695,
  "longitude": -0.3202446220450757,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "2002-02-22",
  "last_sale_date": "2003-12-15",
  "last_price": 382500,
  "truncated": false,
  "sales": [
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      "url": "https://openproperties.uk/al1/london-road/sylvan-heights-141/flat-3/d41d56c9-e1ce-43a2-8a68-d4a18a637385",
      "transaction_id": "D41D56C9-E1CE-43A2-8A68-D4A18A637385",
      "price": 382500,
      "date_of_transfer": "2003-12-15",
      "postcode": "AL1 1SX",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": false,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "SYLVAN HEIGHTS, 141",
      "saon": "FLAT 3",
      "street": "LONDON ROAD",
      "locality": "ST. ALBANS",
      "town_city": "ST. ALBANS",
      "district": "ST ALBANS",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al1/london-road/sylvan-heights-141/flat-3",
      "property_url": "https://openproperties.uk/al1/london-road/sylvan-heights-141/flat-3"
    },
    {
      "url": "https://openproperties.uk/al1/london-road/sylvan-heights-141/flat-3/19ad6e30-861a-4680-9d64-4ce027fb6c17",
      "transaction_id": "19AD6E30-861A-4680-9D64-4CE027FB6C17",
      "price": 317950,
      "date_of_transfer": "2002-02-22",
      "postcode": "AL1 1SX",
      "property_type": "F",
      "property_type_display": "Flat/maisonette",
      "new_build": true,
      "duration": "L",
      "duration_display": "Leasehold",
      "paon": "SYLVAN HEIGHTS, 141",
      "saon": "FLAT 3",
      "street": "LONDON ROAD",
      "locality": "ST. ALBANS",
      "town_city": "ST. ALBANS",
      "district": "ST ALBANS",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al1/london-road/sylvan-heights-141/flat-3",
      "property_url": "https://openproperties.uk/al1/london-road/sylvan-heights-141/flat-3"
    }
  ],
  "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
    }
  ]
}