256f56fc-868f-5e51-e054-002128a47908 English dataset British Geological Survey +44 115 936 3100 Environmental Science Centre, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-04-15 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13606852 OSGB 1936 / British National Grid (EPSG::27700) GeoSure Insurance Product V7 2015.3 2015-11-04 creation http://data.bgs.ac.uk/id/dataHolding/13606852 The GeoSure Insurance Product (GIP) dataset identifies potential natural ground movement hazard within Great Britain by postcode. These data are available in GIS point feature and database format, updated on a 6 monthly basis. The GeoSure Insurance Product represents the end of an interpretation process starting with the BGS Digital Geological Map of Great Britain at the 1:50,000 scale (DiGMapGB-50). This digital map is the definitive record of the types of rocks underlying Great Britain (excluding Northern Ireland), as represented by various layers, starting with Bedrock and moving up to overlying Superficial layers. In 2003, the BGS published a series of GIS digital maps identifying areas of potential natural ground movement hazard in Great Britain, called GeoSure, demonstrating a grade of potential for 6 separate hazards: shrink-swell clays, slope instability, dissolution of soluble ground, running sand, compressible and collapsible deposits. These maps were derived by combining the rock-type information from DiGMapGB-50 with a series of other influencing factors which may cause the geological hazards (e.g. steep slopes, groundwater). In 2005, the BGS used the GeoSure maps to make an interpretation of subsidence insurance risk for the British property insurance industry, released as the GeoSure Insurance Product. This represents the combined effects of the 6 GeoSure hazards on buildings in a postcode database. The combined hazard is represented numerically in the database as the Total Hazard Score, with a breakdown into the component hazards. The methodology behind these data involves balancing the 6 GeoSure natural ground stability hazards against each other. The GeoSure maps themselves have a fivefold coding (A to E), and the balancing exercise involves comparing each level across the six hazards e.g. comparing a level C shrink-swell clay area with a level C running sand area. Each level of each of the hazards is given a 'hazard score' which can then be added together to derive a Total Hazard Score within a 300m radius from the population weighted postcode point. Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk distributor Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk processor annually https://resources.bgs.ac.uk/images/geonetworkThumbs/256f56fc-868f-5e51-e054-002128a47908.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Insurance Risk management Risk analysis Natural hazards BGS Thesaurus of Geosciences 2022 revision UK Location (INSPIRE) dataCentre NERC_DDC otherRestrictions restricted The dataset has been formally approved by BGS for access by external clients under a BGS Digital Data Licence, issued via BGS's IPR Section. The dataset must not be provided to, or be accessible by, an external client until the IPR Section confirms that signed licence documentation is in place. Refer to the IPR Section (DigitalLE@bgs.ac.) if further advice is required. otherRestrictions The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused. The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage. vector 50000 English geoscientificInformation ISO 3166_2 2009 revision GBN British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation GREAT BRITAIN [id=139600] -8.1700 2.6900 49.8800 60.8100 2015-11 Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk distributor https://www.bgs.ac.uk/datasets/geosure-insurance-product/ WWW:LINK-1.0-http--link GeoSure insurance and lenders product The BGS GeoSure insurance and lenders product gives an index-level assessment of the potential for a geological deposit to create financial insurance loss due to natural ground movement. information dataset dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false This dataset is the Derived Postcode Database (DPD) issued as part of the GeoSure Insurance V7 product, incorporating postcode data from OS Open CodePoint Data 2015.3. The GeoSure DPD is a stand-alone database, which can be provided separately to the full GeoSure Insurance Product V7. The GeoSure Insurance Product (including the Derived Postcode Database) represents the end of an interpretation process, starting with the BGS Digital Geological Map of Great Britain at the 1:50,000 scale (DiGMapGB-50). This digital map is the definitive record of the types of rocks underlying Great Britain (excluding Northern Ireland), as represented by various layers, starting with Bedrock and moving up to overlying Superficial layers. In 2003, the BGS also published a series of GIS digital maps identifying areas of potential natural ground movement hazard in the UK, called GeoSure. There are six separate hazards considered: shrink-swell clays, slope instability, dissolution of soluble ground, running sand, compressible and collapsible deposits. These maps were derived by combining the rock-type information from DiGMapGB-50 with a series of other influencing factors which may cause the geological hazards (e.g. steep slopes, groundwater). In 2005, the BGS used the GeoSure maps to make an interpretation of subsidence insurance risk for the British property insurance industry, released as the GeoSure Insurance Product. This represents the combined effects of the 6 GeoSure hazards on buildings in a postcode database. The combined hazard is represented numerically in the Derived Postcode Database as the Total Hazard Score, with a breakdown into the component hazards. The methodology behind the DPD involves balancing the 6 GeoSure natural ground stability hazards against each other. The GeoSure maps themselves have a fivefold coding (A to E), and the balancing exercise involves comparing each level across the six hazards e.g. comparing a level C shrink-swell clay area with a level C running sand area. The comparison is done by a process involving expert analysis and statistical interpretations to estimate the potential damage to a property (specifically low-rise buildings only). Each level of each of the hazards is given a 'hazard score' which can then be added together to derive a Total Hazard Score at a particular location (e.g. within a given postcode). The detail of the methodology is described in more detail in the GIP User Guide (OR/15/021) "User Guide for the GeoSure Insurance Product (version 7)", available from the British Geological Survey.