Property Subsidence Assessment dataset 2023_3
| Dataset title | Property Subsidence Assessment dataset 2023_3 |
|---|---|
| Dataset creators | British Geological Survey |
| Dataset theme | Geoscientific Information |
| Dataset abstract | The BGS PSA dataset provides insurers and homeowners access to a better understanding of the shrink-swell hazard at both the individual property and/or postcode level for Great Britain. It builds upon the GeoSure shrink-swell data by mapping the hazard to the individual building polygon and considering the other susceptibility factors of building type, foundation depth, and drainage and tree proximity. The user receives GIS building polygons with an overall susceptibility to subsidence score between 1-100. Scores are also classified from non-plastic to very high. Each building polygon is also scored from 1-10 for each subsidence factor (geology, foundation, drainage, building type, building storey and tree proximity). Postcode data is also available as a table and shapefiles showing the ‘average’ PSA score for all buildings within the postcode. The identification of shrink-swell related subsidence prone areas, alongside the inclusion of potential sources to exacerbate this phenomena, can better inform insurers and homeowners and form the basis to make decisions concerning prevention and remediation. The product enhances geological information obtained from GIP and GeoSure via the inclusion of the crucial shrink-swell susceptibility factors (proximity to trees and foundation depth). This therefore allows the derivation of a risk element for the housing stock at Building level, which is then generalised to Postcode level. |
| Dataset content dates | 2011 - 2023 |
| Dataset spatial coverage | Great Britain |
| Dataset supply format | ESRI Shapefile, txt file |
| Dataset language | English-United Kingdom |
| Dataset discovery metadata record | Discovery Link to the dataset's BGS Discovery Metadata record |
| Dataset publisher | British Geological Survey |
| Dataset publication date | November 2024 |
| Dataset digital object identifier (DOI) | 10.5285/66240217-3b3b-48cb-a643-f232514096ef |
| Dataset citation text | British Geological Survey. (2024). Property Subsidence Assessment dataset 2023_3. British Geological Survey. (Dataset). https://doi.org/10.5285/66240217-3b3b-48cb-a643-f232514096ef |
| Constraints and terms of use | This dataset is issued to third parties under BGS data licensing terms. |
| Access the dataset | Contact BGS enquiries, enquiries@bgs.ac.uk |
| Further Information | https://www.bgs.ac.uk/datasets/property-subsidence-assessment/ |