The shrink–swell 3D data is a regional hazard-susceptibility map that identifies areas of potential shrink–swell hazard in 3D at intervals down to 20 m in the London and Thames Valley area. The data is classified on an A–E range of hazard susceptibility.
For more information, including how to licence the data or access free versions, please visit our BGS GeoSure shrink–swell 3D for London and Thames Valley webpage.