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      "last_sale_date": "2005-04-25",
      "last_price": 140000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/17/flat-3"
    },
    {
      "paon": "17",
      "saon": "FLAT 4",
      "postcode": "SL6 4EY",
      "sale_count": 4,
      "first_sale_date": "1998-08-19",
      "last_sale_date": "2022-01-14",
      "last_price": 220000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/17/flat-4"
    },
    {
      "paon": "17",
      "saon": "FLAT 5",
      "postcode": "SL6 4EY",
      "sale_count": 2,
      "first_sale_date": "1995-04-20",
      "last_sale_date": "1996-06-28",
      "last_price": 31000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/17/flat-5"
    },
    {
      "paon": "17",
      "saon": "FLAT 6",
      "postcode": "SL6 4EY",
      "sale_count": 3,
      "first_sale_date": "2002-06-19",
      "last_sale_date": "2015-11-16",
      "last_price": 215000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/17/flat-6"
    },
    {
      "paon": "17",
      "saon": "THE GARDEN FLAT",
      "postcode": "SL6 4EY",
      "sale_count": 2,
      "first_sale_date": "1997-09-04",
      "last_sale_date": "2001-06-28",
      "last_price": 125500,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/17/the-garden-flat"
    },
    {
      "paon": "21",
      "saon": null,
      "postcode": "SL6 4EY",
      "sale_count": 1,
      "first_sale_date": "1996-05-31",
      "last_sale_date": "1996-05-31",
      "last_price": 143500,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/21"
    },
    {
      "paon": "21",
      "saon": "3",
      "postcode": "SL6 4EY",
      "sale_count": 3,
      "first_sale_date": "1999-05-27",
      "last_sale_date": "2014-02-26",
      "last_price": 485000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/21/3"
    },
    {
      "paon": "23A",
      "saon": null,
      "postcode": "SL6 4EY",
      "sale_count": 2,
      "first_sale_date": "1999-12-03",
      "last_sale_date": "2015-01-08",
      "last_price": 870000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/23a"
    },
    {
      "paon": "27",
      "saon": null,
      "postcode": "SL6 4EY",
      "sale_count": 1,
      "first_sale_date": "2014-02-14",
      "last_sale_date": "2014-02-14",
      "last_price": 587000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/27"
    },
    {
      "paon": "29",
      "saon": null,
      "postcode": "SL6 4EY",
      "sale_count": 1,
      "first_sale_date": "2013-12-20",
      "last_sale_date": "2013-12-20",
      "last_price": 550000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/29"
    },
    {
      "paon": "31",
      "saon": null,
      "postcode": "SL6 4EY",
      "sale_count": 1,
      "first_sale_date": "2015-03-31",
      "last_sale_date": "2015-03-31",
      "last_price": 597000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/31"
    },
    {
      "paon": "38",
      "saon": null,
      "postcode": "SL6 4HA",
      "sale_count": 2,
      "first_sale_date": "1995-12-14",
      "last_sale_date": "2006-07-07",
      "last_price": 273000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/38"
    },
    {
      "paon": "42",
      "saon": null,
      "postcode": "SL6 4HA",
      "sale_count": 2,
      "first_sale_date": "1995-03-27",
      "last_sale_date": "2006-12-11",
      "last_price": 410000,
      "url": "https://openproperties.uk/sl6/boyn-hill-avenue/42"
    }
  ],
  "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.",
  "provenance": {
    "source": "HM Land Registry Price Paid Data",
    "source_url": "https://www.gov.uk/government/statistical-data-sets/price-paid-data-downloads",
    "retrieved_at": null
  }
}