OS Features API

Direct access to the most detailed geographic data for your analysis. Take full advantage of rich geometries and attributes to generate new insight.

  • Topography
  • API
  • OS OpenData Plan (FREE)
  • Premium Plan
  • Public Sector Plan
  • Energy & Infrastructure Plan

This product is updated depending on the product downloaded

Representation of data provided
Representation of data provided

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.

OS Features API

Technical information


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.

  • API
Data theme
  • Multiple
Data structure
Vector (Points, Lines, Polygons, Text)
Great Britain
1:1250 to 1:10,000
  • OGC Web Feature Service (WFS)
OS Data Hub plan
  • OS OpenData Plan (FREE)
  • Premium Plan
  • Public Sector Plan
  • Energy & Infrastructure Plan

Documents and Support

Getting started guides

  • OS Features API - Getting started guide
    The Getting started guide provides instructions for using the product in different software applications. Users with limited technical knowledge will be able to follow this guide.

Technical specification

Supporting documents

  • OS Features API - Overview
    The overview introduces the product and gives context for all users. It highlights key features, provides examples of potential uses for the product and lists details like file sizes, supply formats, etc.

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.

OS Features API

Get this product

What you get

Key features
  • Up-to-date and analysis ready
  • Reduce your overheads
  • Rich data and attribution
  • Based on the OGC standard Web Feature Service (WFS)
  • Uncover the past
  • API
Data structure
Vector (Points, Lines, Polygons, Text)
Update frequency
Depending on the product downloaded

How to access

OS OpenData APIs are free

Ready to get started with APIs?

Take the next step by signing up to the OS Data Hub and create your first project today.

Sign up to the OS Data Hub

Get this product

Access for free and benefit from using OS data

Get help

Further support

For further help about how our data can transform your organisation, contact us today

Contact us