OS Open Names
Here you will find all documentation for the OS Open Names product.
OS Open Names is a comprehensive dataset of place names, roads numbers and postcodes for Great Britain. The data contains accurate and current settlement names, road names and numbers, postcodes and their locations, with additional contextual information and links to other datasets.

Accurate locations of streets and postcodes
Let your customer-facing staff find places quickly when talking to callers. OS Open Names provides the accurate locations of streets and postcodes in Great Britain.
Place name data
Quickly look up places and roads with two names. OS Open Names contains place name data in English and their Welsh, Scots or Gaelic alternatives.
Comprehensive National Grid data
OS Open Names contains over 870 000 named and numbered roads, nearly 44 000 settlements and over 1.6 million postcodes, all matched/mapped to the National Grid.
OS Open Names can be used across all sectors of industry for a wide variety of purposes. Primarily, it can be used to identify and locate named places; however, when combined with other OS products, the range of uses for the product increases.
The Product applications page lists a range of use cases for the product.
Access: Download
Data themes: Administrative and Statistical Units, Geographical Names, Transport
Data structure: Vector
Coverage: Great Britain
Scale: 1:1 250 to 1:10 000
Format: CSV, GML 3.2.1, GeoPackage
Ordering area: All of Great Britain
Publication months: January, April, July, October
OS Open Names level of detail
OS Open Names doesn’t go down to the level of locations of individual houses, but it does show the location of roads. It also tells your GIS how far to zoom out to show the full length of your street.
For property locations, you will need one of the AddressBase products.
Need complete addresses?
If your work requires the full postal address, we recommend AddressBase products.
How to get this product
Access to this OS OpenData product is free through the OS Data Hub.
Sample data
Visualise OS Open Names sample data online
This product is available to try out free online using one of our three sets of sample data (Exeter, Newport and Inverness) through the OS MasterMap Product Viewer:
What's next?
To access additional documentation and resources relating to this product, please refer to the following:
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