{
  "url": "https://openproperties.uk/al9/great-north-road/marshmoor-cottages/2",
  "address_path": "al9/great-north-road/marshmoor-cottages/2",
  "paon": "MARSHMOOR COTTAGES",
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  "street": "GREAT NORTH ROAD",
  "locality": "NORTH MYMMS",
  "town_city": "HATFIELD",
  "district": "WELWYN HATFIELD",
  "county": "HERTFORDSHIRE",
  "postcode": "AL9 5SD",
  "postcodes": [
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  "location_precision": "postcode_centroid",
  "sale_count": 3,
  "first_sale_date": "1997-07-25",
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      "duration": "F",
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      "paon": "MARSHMOOR COTTAGES",
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      "street": "GREAT NORTH ROAD",
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      "town_city": "HATFIELD",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al9/great-north-road/marshmoor-cottages/2",
      "property_url": "https://openproperties.uk/al9/great-north-road/marshmoor-cottages/2"
    },
    {
      "url": "https://openproperties.uk/al9/great-north-road/marshmoor-cottages/2/bd99eb72-529e-450b-9634-5dcca7a487b4",
      "transaction_id": "BD99EB72-529E-450B-9634-5DCCA7A487B4",
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      "date_of_transfer": "2003-06-06",
      "postcode": "AL9 5SD",
      "property_type": "S",
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      "duration": "F",
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      "town_city": "HATFIELD",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al9/great-north-road/marshmoor-cottages/2",
      "property_url": "https://openproperties.uk/al9/great-north-road/marshmoor-cottages/2"
    },
    {
      "url": "https://openproperties.uk/al9/great-north-road/marshmoor-cottages/2/96f72420-c1ec-4752-a249-e61ecc9be505",
      "transaction_id": "96F72420-C1EC-4752-A249-E61ECC9BE505",
      "price": 147000,
      "date_of_transfer": "1997-07-25",
      "postcode": "AL9 5SD",
      "property_type": "S",
      "property_type_display": "Semi-detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "MARSHMOOR COTTAGES",
      "saon": "2",
      "street": "GREAT NORTH ROAD",
      "locality": "NORTH MYMMS",
      "town_city": "HATFIELD",
      "district": "WELWYN HATFIELD",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "al9/great-north-road/marshmoor-cottages/2",
      "property_url": "https://openproperties.uk/al9/great-north-road/marshmoor-cottages/2"
    }
  ],
  "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
    }
  ]
}