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      "paon": "51",
      "saon": "FLAT 5",
      "postcode": "NW3 4BN",
      "sale_count": 3,
      "first_sale_date": "2000-08-01",
      "last_sale_date": "2013-11-29",
      "last_price": 925000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/51/flat-5"
    },
    {
      "paon": "52",
      "saon": null,
      "postcode": "NW3 4AE",
      "sale_count": 1,
      "first_sale_date": "2000-08-18",
      "last_sale_date": "2000-08-18",
      "last_price": 600000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/52"
    },
    {
      "paon": "54",
      "saon": "FLAT B",
      "postcode": "NW3 4AE",
      "sale_count": 5,
      "first_sale_date": "1997-05-30",
      "last_sale_date": "2013-02-08",
      "last_price": 900000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/54/flat-b"
    },
    {
      "paon": "54",
      "saon": "FLAT C",
      "postcode": "NW3 4AE",
      "sale_count": 2,
      "first_sale_date": "1996-03-22",
      "last_sale_date": "2007-03-28",
      "last_price": 585000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/54/flat-c"
    },
    {
      "paon": "54A",
      "saon": null,
      "postcode": "NW3 4AE",
      "sale_count": 3,
      "first_sale_date": "1996-10-07",
      "last_sale_date": "2013-06-11",
      "last_price": 705000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/54a"
    },
    {
      "paon": "54D",
      "saon": null,
      "postcode": "NW3 4AE",
      "sale_count": 2,
      "first_sale_date": "2002-08-29",
      "last_sale_date": "2005-07-15",
      "last_price": 491751,
      "url": "https://openproperties.uk/nw3/belsize-avenue/54d"
    },
    {
      "paon": "56",
      "saon": null,
      "postcode": "NW3 4AA",
      "sale_count": 1,
      "first_sale_date": "2010-01-08",
      "last_sale_date": "2010-01-08",
      "last_price": 2325000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/56"
    },
    {
      "paon": "58",
      "saon": null,
      "postcode": "NW3 4AA",
      "sale_count": 2,
      "first_sale_date": "1996-11-25",
      "last_sale_date": "2005-06-23",
      "last_price": 1520000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/58"
    },
    {
      "paon": "60A",
      "saon": null,
      "postcode": "NW3 4AA",
      "sale_count": 4,
      "first_sale_date": "1995-12-05",
      "last_sale_date": "2023-03-10",
      "last_price": 470000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/60a"
    },
    {
      "paon": "60B",
      "saon": null,
      "postcode": "NW3 4AA",
      "sale_count": 2,
      "first_sale_date": "2007-05-22",
      "last_sale_date": "2012-03-30",
      "last_price": 900000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/60b"
    },
    {
      "paon": "60C",
      "saon": null,
      "postcode": "NW3 4AA",
      "sale_count": 3,
      "first_sale_date": "1997-12-31",
      "last_sale_date": "2011-10-05",
      "last_price": 575000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/60c"
    },
    {
      "paon": "60D",
      "saon": null,
      "postcode": "NW3 4AA",
      "sale_count": 1,
      "first_sale_date": "2007-10-26",
      "last_sale_date": "2007-10-26",
      "last_price": 595950,
      "url": "https://openproperties.uk/nw3/belsize-avenue/60d"
    },
    {
      "paon": "61",
      "saon": null,
      "postcode": "NW3 4BN",
      "sale_count": 2,
      "first_sale_date": "2006-02-10",
      "last_sale_date": "2008-12-19",
      "last_price": 4350000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/61"
    },
    {
      "paon": "63",
      "saon": "FLAT 1",
      "postcode": "NW3 4BN",
      "sale_count": 1,
      "first_sale_date": "1997-06-13",
      "last_sale_date": "1997-06-13",
      "last_price": 225000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/63/flat-1"
    },
    {
      "paon": "63",
      "saon": "FLAT 3",
      "postcode": "NW3 4BN",
      "sale_count": 2,
      "first_sale_date": "1997-04-30",
      "last_sale_date": "2001-08-17",
      "last_price": 463765,
      "url": "https://openproperties.uk/nw3/belsize-avenue/63/flat-3"
    },
    {
      "paon": "63",
      "saon": "FLAT 4",
      "postcode": "NW3 4BN",
      "sale_count": 4,
      "first_sale_date": "1997-07-31",
      "last_sale_date": "2009-12-02",
      "last_price": 337500,
      "url": "https://openproperties.uk/nw3/belsize-avenue/63/flat-4"
    },
    {
      "paon": "63",
      "saon": "FLAT 5",
      "postcode": "NW3 4BN",
      "sale_count": 5,
      "first_sale_date": "1998-05-29",
      "last_sale_date": "2026-03-20",
      "last_price": 725000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/63/flat-5"
    },
    {
      "paon": "63",
      "saon": "FLAT 6",
      "postcode": "NW3 4BN",
      "sale_count": 1,
      "first_sale_date": "1997-09-26",
      "last_sale_date": "1997-09-26",
      "last_price": 205000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/63/flat-6"
    },
    {
      "paon": "63",
      "saon": "RAISED GROUND FLOOR FLAT",
      "postcode": "NW3 4BN",
      "sale_count": 3,
      "first_sale_date": "1997-04-15",
      "last_sale_date": "2007-11-12",
      "last_price": 1025000,
      "url": "https://openproperties.uk/nw3/belsize-avenue/63/raised-ground-floor-flat"
    }
  ],
  "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
  }
}