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      "paon": "33",
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      "postcode": "EN1 1JJ",
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      "url": "https://openproperties.uk/en1/haileybury-avenue/51"
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      "url": "https://openproperties.uk/en1/haileybury-avenue/53"
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    {
      "paon": "55",
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      "postcode": "EN1 1JJ",
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      "last_sale_date": "2017-09-15",
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      "url": "https://openproperties.uk/en1/haileybury-avenue/55"
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    {
      "paon": "57",
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      "first_sale_date": "2020-06-05",
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      "last_price": 430000,
      "url": "https://openproperties.uk/en1/haileybury-avenue/57"
    },
    {
      "paon": "59",
      "saon": null,
      "postcode": "EN1 1JJ",
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      "first_sale_date": "2002-01-29",
      "last_sale_date": "2012-05-29",
      "last_price": 360000,
      "url": "https://openproperties.uk/en1/haileybury-avenue/59"
    },
    {
      "paon": "61",
      "saon": null,
      "postcode": "EN1 1JJ",
      "sale_count": 1,
      "first_sale_date": "2014-11-25",
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      "last_price": 370000,
      "url": "https://openproperties.uk/en1/haileybury-avenue/61"
    }
  ],
  "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
  }
}