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      "url": "https://openproperties.uk/w3/first-avenue/78"
    },
    {
      "paon": "79",
      "saon": null,
      "postcode": "W3 7JN",
      "sale_count": 2,
      "first_sale_date": "2008-03-17",
      "last_sale_date": "2025-03-24",
      "last_price": 780000,
      "url": "https://openproperties.uk/w3/first-avenue/79"
    },
    {
      "paon": "80",
      "saon": null,
      "postcode": "W3 7JW",
      "sale_count": 1,
      "first_sale_date": "2018-10-18",
      "last_sale_date": "2018-10-18",
      "last_price": 850000,
      "url": "https://openproperties.uk/w3/first-avenue/80"
    },
    {
      "paon": "86",
      "saon": null,
      "postcode": "W3 7JW",
      "sale_count": 1,
      "first_sale_date": "2005-07-29",
      "last_sale_date": "2005-07-29",
      "last_price": 300000,
      "url": "https://openproperties.uk/w3/first-avenue/86"
    }
  ],
  "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
  }
}