Comprehensive Mapping and Data Solutions
Ordnance Survey MasterMap
The OS MasterMap Topography layer is presented seamlessly with more than 500 Million real world objects – all uniquely identified - including roads, buildings, parks and waterways all managed and maintained by Ordnance Survey within one of the world’s largest spatial databases for a full topography map of the UK.​ Buy topo maps including Ordnance Survey MasterMap here today & contact us for more information.
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​​​​What is OS MasterMap?
OS MasterMap Topography Layer is Ordnance Survey's most detailed and authoritative large-scale mapping dataset, providing property-level information across Great Britain. Widely used throughout the public and private sectors, it captures millions of real-world features to create an accurate and comprehensive digital representation of the physical environment.
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The dataset includes visible features such as buildings, roads, fields, fences, walls and street furniture, as well as less obvious geographic features including administrative boundaries and tidal boundaries, such as the lines of mean high and low water. Each feature is accurately positioned and assigned a unique identifier, making OS MasterMap ideal for use within Geographic Information Systems (GIS), CAD software and other digital mapping applications.
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Covering England, Scotland and Wales, OS MasterMap provides a trusted foundation for planning, surveying, engineering, utilities, property development and environmental management. Its detailed, regularly maintained mapping enables organisations to make informed decisions using reliable, up-to-date geographic information.
Why use Ordnance Survey MasterMap?
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Mapping from the ground up; In a business of any kind, OS MasterMap Topography Layer gives you the confidence to make location-based decisions about assets, services, environmental risks, customers and operations.
Accurate referencing; Geo-tag your assets, with the topographic identifier (TOID) at the heart of OS MasterMap Topography Layer products. This makes it ideal for monitoring assets such as pipelines, pylons, bridges and warehouses.
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Enhanced features; OS MasterMap Topography Layer includes enhanced features - Building Height Attribute to analyse the built environment and Sites Layer showing the main points of access to key sites
The foundation of the Ordnance Survey MasterMap family; With OS MasterMap Topography Layer, each feature is a record in a database with geometry and attribution categorising the feature and information about it's change history as well as unique identifiers connecting it to other data. It provides an accurate visual context to help you interpret addresses, routes and imagery provided by the other layers.
Planning applications; Ordnance Survey MasterMap is the trusted source for planning applications.
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What does OS MasterMap include?
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OS MasterMap contains detailed information about a wide range of real-world features, including:
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Buildings and structures
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Roads, paths and transport networks
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Property outlines
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Water features
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Land parcels
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Vegetation
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Boundaries
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Topographic features
Each feature is assigned a unique identifier, allowing it to be managed and analysed within GIS and CAD software.
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Who uses OS MasterMap?
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OS MasterMap is widely used by professionals who require accurate mapping data, including:
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Planning consultants
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Surveyors
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Utility companies
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Environmental consultants
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Local authorities
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GIS professionals
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Its detailed mapping supports projects ranging from planning applications and infrastructure design to environmental analysis and asset management.
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OS MasterMap or NGD: Which is right for your project?
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OS MasterMap
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Detailed topographic mapping
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Proven industry standard
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Excellent for planning and CAD
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Highly accurate base mapping
National Geographic Database (NGD)
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Connected data model
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Rich feature attribution
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Modern GIS workflows
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Advanced spatial analysis
Many organisations use both together, with OS MasterMap providing trusted topographic mapping and NGD adding richer location intelligence.
Add Ons
Our OS MasterMap data can also be enhanced with a range of additional mapping datasets to give deeper insight into site conditions & context. These include height map data for terrain and elevation analysis, Bluesky's National Tree Map for identifying woodland areas & vegetation, aerial imagery for a more visual view, Land Registry mapping for ownership and boundary information, Field Boundary data for agricultural and land use, and the National Geographic Database for broader geospatial view. These optional layers can be combined with OS MasterMap to support more detailed planning, design and development decision making for developers, investors, architects, civil engineers and more.
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Samples
* Northern Ireland equivalent available