{
  "url": "https://openproperties.uk/sl9/copthall-close/11",
  "address_path": "sl9/copthall-close/11",
  "paon": "11",
  "saon": null,
  "street": "COPTHALL CLOSE",
  "locality": "CHALFONT ST PETER",
  "town_city": "GERRARDS CROSS",
  "district": "CHILTERN",
  "county": "BUCKINGHAMSHIRE",
  "postcode": "SL9 0DH",
  "postcodes": [
    "SL9 0DH"
  ],
  "latitude": 51.610954137276444,
  "longitude": -0.5488312289160776,
  "location_precision": "postcode_centroid",
  "sale_count": 3,
  "first_sale_date": "1998-04-24",
  "last_sale_date": "2006-01-16",
  "last_price": 500000,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/sl9/copthall-close/11/c7494e6b-a17f-4d89-87e2-3e0fb8f3c436",
      "transaction_id": "C7494E6B-A17F-4D89-87E2-3E0FB8F3C436",
      "price": 500000,
      "date_of_transfer": "2006-01-16",
      "postcode": "SL9 0DH",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "11",
      "saon": null,
      "street": "COPTHALL CLOSE",
      "locality": "CHALFONT ST PETER",
      "town_city": "GERRARDS CROSS",
      "district": "CHILTERN",
      "county": "BUCKINGHAMSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sl9/copthall-close/11",
      "property_url": "https://openproperties.uk/sl9/copthall-close/11"
    },
    {
      "url": "https://openproperties.uk/sl9/copthall-close/11/97f832aa-bd53-44e8-aaa0-080e0923a416",
      "transaction_id": "97F832AA-BD53-44E8-AAA0-080E0923A416",
      "price": 355000,
      "date_of_transfer": "2000-07-04",
      "postcode": "SL9 0DH",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "11",
      "saon": null,
      "street": "COPTHALL CLOSE",
      "locality": "CHALFONT ST PETER",
      "town_city": "GERRARDS CROSS",
      "district": "CHILTERN",
      "county": "BUCKINGHAMSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sl9/copthall-close/11",
      "property_url": "https://openproperties.uk/sl9/copthall-close/11"
    },
    {
      "url": "https://openproperties.uk/sl9/copthall-close/11/702118d3-7244-4bf9-96e3-b0df792ef5ae",
      "transaction_id": "702118D3-7244-4BF9-96E3-B0DF792EF5AE",
      "price": 187000,
      "date_of_transfer": "1998-04-24",
      "postcode": "SL9 0DH",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "11",
      "saon": null,
      "street": "COPTHALL CLOSE",
      "locality": "CHALFONT ST PETER",
      "town_city": "GERRARDS CROSS",
      "district": "CHILTERN",
      "county": "BUCKINGHAMSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "sl9/copthall-close/11",
      "property_url": "https://openproperties.uk/sl9/copthall-close/11"
    }
  ],
  "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
    }
  ]
}