OS Features API
What OS Features API provides you with
Up-to-date and analysis ready
Benefit from current, detailed and accurate data to help you generate new location-based insight. OS Features API contains OS MasterMap Topography Layer, and much more.
Reduce your overheads
No need to download, store and manage large and complex datasets, we take care of that so you can focus on adding value.
Rich data and attribution
Access detailed geometries and rich attribution through OS Features API. It contains lots of data layers.
Based on the OGC standard Web Feature Service (WFS)
OS Features API is interoperable with lots of GIS software and web mapping libraries.
Uncover the past
Explore annual snapshots of past releases of our products with our OS Product Archive service available through the OS Features API. Access detailed and accurate OS data as it was when released to gain a deeper understanding of the past and make informed decisions for the future.
Use cases
With OS Features API you can:
Request specific feature types and their attributes using spatial or attribute queries.
Visualise and style Ordnance Survey data.
Interrogate highly detailed feature information, including OS MasterMap Topography Layer.
Create and apply your own styling preferences.
Additional information
Available data layers
OS Premium Data layers:
OS MasterMap Topography Layer with Building Heights
OS MasterMap Sites Layer (contains extents for hospitals, schools and more)
OS MasterMap Greenspace Layer (contains extents for public parks, private gardens and more)
OS MasterMap Water Network Layer (contains links and nodes for rivers, canals, streams and more)
OS MasterMap Highways Network (contains links and nodes for roads, urban paths and more)
OS Detailed Path Network (contains links and nodes for all paths within National Parks)
OS OpenData layers:
OS Open Zoomstack (contains local buildings, greenspaces, sites, woodland and much more)
Requesting features
A single request can contain up to 100 features but you can make subsequent requests to retrieve more data.
OS Features API is intended for dealing with relatively small amounts of data at local scales, not for big data analysis. For that, we recommend that you use a download data product.