Authoritative identifiers for real world objects
TOIDs are the authoritative identifier assigned to and uniquely identifying real world objects, being essential for customers to link their own data to and track change over time.
OS Open TOID
A TOID (Topographic Identifier) is a unique and persistent identifier for each and every feature found in OS MasterMap products. This dataset shows unique identifiers for a wide range of landscape and built environment features, with a generalised location, extracted from OS MasterMap products.
This product is updated every six weeks
Get this ProductView Technical InformationFree to use for everyone
Get this ProductView Technical InformationFree to use for everyone
What OS Open TOID provides you with
Easy to share
OS Open TOID will enable data to be shared for a wide range of landscape and built environment features by providing them with a unique identity and generalised location that can be used by everyone. Watch our OS Open TOID introduction video.
Complete topographic data
All Topographic points, lines and polygons present in OS MasterMap Topography Layer and junctions, roads and path present in OS MasterMap Highways Networks are also part of this product – so you can be sure you’re not missing out.
Authoritative source
The TOIDs in OS Open TOID are allocated by Ordnance Survey. This means you can have confidence you’re accessing an authoritative source of these identifiers.
Identifiers you can trust
The TOID is never re-used, once its allocated to a feature, that’s it, it will never change or be reused.
OS Open TOID
Technical information
Specifications
- Access
- Download
- Data structure
- Vector
- Coverage
- Great Britain
- Scale
- 1:1 250 to 1:10 000
- Format
- CSV
- GeoPackage
- Ordering area
- Customisable area (100km2 tiles)
- OS Data Hub plan
- OS OpenData Plan (FREE)
- Premium Plan
- Public Sector Plan
Documents and Support
Technical documentation
- OS Open TOID technical documentationVisit docs.os.uk to access all technical documentation for this product, including overview, technical specification, and release notes.
OS Open TOID
Get this product
What you get
- Key features
- Authoritative identifiers for real world objects
- Easy to share
- Complete topographic data
- Authoritative source
- Identifiers you can trust
- Category
- Identifiers
- Access
- Download
- Data structure
- Vector
- Update frequency
- Every six weeks
How to access
OS OpenData is free
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Further support
For further help about how our data can transform your organisation, contact us today
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