TerraSure combines a range of perils datasets, drawn from various expert providers, with location information and presents this as a risk rating in the context of backdrop mapping, imagery and height information. All of the data is maintained as part of the TerraSure service, ensuring that the latest available version is accessed each time the service is used.

Each dataset is described in detail here:

JBA Comprehensive Flood Map

NSRI Natural Perils Directory – Subsidence Risk

Aerial Photography

Height Data

OS MasterMap® Topographic Layer


1:250 000 Scale Colour Raster

OS Vector Map District

OS Street View®