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OS Open Linked Identifiers

OS Open Linked Identifiers provides authoritative relationship between UPRNs, USRNs, TOIDs and meta data to enable reliable matching; for greater data connectivity.


OS OpenMap - Local

Map, visualise, and truly understand your data at street level.

Contextual or derived mapping


From Parliamentary constituencies to council wards, Boundary-Line™ maps every administrative boundary in detail for you. And what's more, it's completely free to download and use.

Addressing & location

OS MasterMap Topography Layer

OS MasterMap Topography Layer® is the most detailed and accurate view of Great Britain's landscape – from roads to fields, to buildings and trees, fences, paths and more.


OS Terrain 50

Visualise simple landscapes in 3D and bring your geographic analysis to life.

Height & imagery

OS Open Zoomstack

OS Open Zoomstack makes OS open data more accessible, customisable and easier to use. It provides a single, customisable map of Great Britain to be used at national and local levels.

Contextual or derived mapping

Code-Point Open

Get started with geographical analysis, simple route planning and asset management.

Addressing & location

OS VectorMap District

How would you like your map to look?

Contextual or derived mapping

OS Open Rivers

Understand how watercourses in Great Britain join up.