{
  "url": "https://openproperties.uk/nn5/castle-avenue/9",
  "address_path": "nn5/castle-avenue/9",
  "paon": "9",
  "saon": null,
  "street": "CASTLE AVENUE",
  "locality": "NORTHAMPTON",
  "town_city": "NORTHAMPTON",
  "district": "NORTHAMPTON",
  "county": "NORTHAMPTONSHIRE",
  "postcode": "NN5 6LG",
  "postcodes": [
    "NN5 6LG"
  ],
  "latitude": 52.24988471831753,
  "longitude": -0.9458408376692994,
  "location_precision": "postcode_centroid",
  "sale_count": 2,
  "first_sale_date": "1996-07-05",
  "last_sale_date": "2005-07-22",
  "last_price": 144995,
  "truncated": false,
  "sales": [
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      "url": "https://openproperties.uk/nn5/castle-avenue/9/ac7db80b-8e6c-4c0e-b1f3-9a33c1ff8f4e",
      "transaction_id": "AC7DB80B-8E6C-4C0E-B1F3-9A33C1FF8F4E",
      "price": 144995,
      "date_of_transfer": "2005-07-22",
      "postcode": "NN5 6LG",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "9",
      "saon": null,
      "street": "CASTLE AVENUE",
      "locality": "NORTHAMPTON",
      "town_city": "NORTHAMPTON",
      "district": "NORTHAMPTON",
      "county": "NORTHAMPTONSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "nn5/castle-avenue/9",
      "property_url": "https://openproperties.uk/nn5/castle-avenue/9"
    },
    {
      "url": "https://openproperties.uk/nn5/castle-avenue/9/52212386-a94c-47e9-bc47-8bf6bdcaffca",
      "transaction_id": "52212386-A94C-47E9-BC47-8BF6BDCAFFCA",
      "price": 49000,
      "date_of_transfer": "1996-07-05",
      "postcode": "NN5 6LG",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "9",
      "saon": null,
      "street": "CASTLE AVENUE",
      "locality": "NORTHAMPTON",
      "town_city": "NORTHAMPTON",
      "district": "NORTHAMPTON",
      "county": "NORTHAMPTONSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "nn5/castle-avenue/9",
      "property_url": "https://openproperties.uk/nn5/castle-avenue/9"
    }
  ],
  "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
    }
  ]
}