{
  "url": "https://openproperties.uk/hp1/pierian-spring/4",
  "address_path": "hp1/pierian-spring/4",
  "paon": "4",
  "saon": null,
  "street": "PIERIAN SPRING",
  "locality": null,
  "town_city": "HEMEL HEMPSTEAD",
  "district": "DACORUM",
  "county": "HERTFORDSHIRE",
  "postcode": "HP1 3JP",
  "postcodes": [
    "HP1 3JP"
  ],
  "latitude": 51.761697717771796,
  "longitude": -0.4822453449930575,
  "location_precision": "postcode_centroid",
  "sale_count": 3,
  "first_sale_date": "1996-08-02",
  "last_sale_date": "1999-12-19",
  "last_price": 179950,
  "truncated": false,
  "sales": [
    {
      "url": "https://openproperties.uk/hp1/pierian-spring/4/1b228abe-1967-411a-bb61-7c757578f265",
      "transaction_id": "1B228ABE-1967-411A-BB61-7C757578F265",
      "price": 179950,
      "date_of_transfer": "1999-12-19",
      "postcode": "HP1 3JP",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "4",
      "saon": null,
      "street": "PIERIAN SPRING",
      "locality": null,
      "town_city": "HEMEL HEMPSTEAD",
      "district": "DACORUM",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp1/pierian-spring/4",
      "property_url": "https://openproperties.uk/hp1/pierian-spring/4"
    },
    {
      "url": "https://openproperties.uk/hp1/pierian-spring/4/7e68c823-c3a6-47db-bc71-1a8faeb27cc7",
      "transaction_id": "7E68C823-C3A6-47DB-BC71-1A8FAEB27CC7",
      "price": 148500,
      "date_of_transfer": "1999-03-30",
      "postcode": "HP1 3JP",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": false,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "4",
      "saon": null,
      "street": "PIERIAN SPRING",
      "locality": null,
      "town_city": "HEMEL HEMPSTEAD",
      "district": "DACORUM",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp1/pierian-spring/4",
      "property_url": "https://openproperties.uk/hp1/pierian-spring/4"
    },
    {
      "url": "https://openproperties.uk/hp1/pierian-spring/4/eb88fa0c-df4c-4683-8ea7-c930b0bd19a5",
      "transaction_id": "EB88FA0C-DF4C-4683-8EA7-C930B0BD19A5",
      "price": 128950,
      "date_of_transfer": "1996-08-02",
      "postcode": "HP1 3JP",
      "property_type": "D",
      "property_type_display": "Detached",
      "new_build": true,
      "duration": "F",
      "duration_display": "Freehold",
      "paon": "4",
      "saon": null,
      "street": "PIERIAN SPRING",
      "locality": "HEMEL HEMPSTEAD",
      "town_city": "HEMEL HEMPSTEAD",
      "district": "DACORUM",
      "county": "HERTFORDSHIRE",
      "ppd_category_type": "A",
      "last_seen_at": "2026-07-09T18:56:26.350736+00:00",
      "address_path": "hp1/pierian-spring/4",
      "property_url": "https://openproperties.uk/hp1/pierian-spring/4"
    }
  ],
  "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
    }
  ]
}