OS MasterMap Topography Layer
OS MasterMap® Topography Layer is the most detailed complete and current view of Great Britain’s landscape, allowing you to make location based decisions about your assets, risks and services.
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.
OS MasterMap Highways Network - Roads
OS MasterMap® Highways Network is the most complete, detailed and accurate routable road network dataset for Great Britain. It records the dimensions and accessibility of roads.
The latest product in the AddressBase® family is updated weekly as well as being the simplest to use without compromising on accuracy.
OS Downloads API
Save valuable time by automating the discovery and download of detailed OS data.
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.
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 VectorMap Local
A highly-detailed, customisable, street-level map, OS VectorMap® Local shows fences, building outlines, paths and street names, for the accurate lie of the land.
OS Maps API
Accurate, up-to-date maps that offer the most convenient way to add detailed OS data to your application.