© Crown copyright and database rights 2025 Ordnance Survey 0100031673

OS Terrain 5 is a mid-resolution, three-dimensional terrain model designed to be interoperable with Ordnance Survey large-scale data. The 'bare-earth' product provides a virtual view of the landscape and models significant landscape features including roads, railways, slopes, quarries and lakes with all protruding features such as buildings and trees removed.

Updated quarterly, OS Terrain-5 is available as vector contours at 2m intervals intervals and as a 5m grid of heighted points, supplied for bespoke area-of-interest (priced by the whole kilometre squared):

- 2m Contours in SHP, DWG
- 5m Grid Data in ASC, TXT, XYZ, DXF

The product is particularly useful in environmental analysis, flood hazard modelling/assessment and landscape visualisation in planning and development activities (e.g. siting of windfarms) and for asset/site management.