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OSMM 3D combines OS MasterMap Topography Layer large scale mapping with building heights and the OS 5-metre digital terrain model (OS Terrain 5) to create a simple, three-dimensional view of the landscape (Level of Detail; LOD1).

LOD1 focuses on the overall building volume and shape rather than detailed features. Buildings are represented as rectangular blocks with vertical walls and flat roofs, useful for visualising overall urban landscape and distribution of building in initial planning stages.

OSMM 3D is a fundamental building block for more detailed 3D city models and is suitable for analysis at 1:1,250 to 1:2,500 scales.  The data available in a variety of format and processed on demand for customer-defined areas up to 4km2.