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OS MasterMap Imagery Layer

When you need the visual feel for a location, the aerial photography of OS MasterMap® Imagery Layer gives you the real-world view.


Using our aerial imagery to check road markings, tree canopies or site entrances cuts down the need for site visits, so you can save money and manage time more efficiently.

For engineers, for surveyors, for planners, Imagery Layer is a revelation. It's aligned to OS MasterMap Topography Layer and is incredibly detailed, expertly colour-balanced and corrected for geometric distortions.

OS MasterMap Imagery Layer is an off-the-shelf product for the whole of Great Britain. You can get it under perpetual use terms – ideal for projects – as well as fixed-term licences.

Active capture programme

Active capture programme

More than 97% of our imagery is less than five years old; 90% is less than three years old. Check imagery currency on our interactive map.

Up-to-date imagery and data

Up-to-date imagery and data

OS MasterMap Imagery Layer uses the same source imagery that underpins our large-scale data updates. Our processing software produces true-orthorectified imagery, removing building lean from aerial imagery to give you a consistent top-down view.

You can easily interpret the detail

You can easily interpret the detail

You can easily spot properties with solar panels, conservatories and other home improvements, thanks to the layer's 25cm resolution. This makes the product ideal for planning and environmental monitoring.

Explore our data

You’re welcome to try out this data for free under our Data Exploration Licence.

Internal business use

When using OS data in your own business, you need our Framework Contract (Direct Customers) together with a data contract.

Creating products or services

To use this data commercially in your own products and services, or to distribute it, you will need to sign up to our Framework Contract (Partners) and a relevant defined use contract. This will vary depending on what you’re going to do with the data.

View all licences 

How to get this product

Sample data

Give it a try

Download a small area of OS MasterMap Imagery Layer sample data.

Or you can apply for a Data Exploration Licence to try out the real thing.

Technical specification

Key FeaturesWhat this product offers
FormatJPEG, TIFF and ECW
MetadataXML format for each block, including day, month and year flown
Update frequencyQuarterly (February, May, August and November), as part of our three year cyclic revision programme synchronised with large-scale data updates.
SupplyDownload or, for large orders, portable hard drive
CoverageGreat Britain
Product refreshQuarterly full supply or change-only update


Success stories

Running a safe and secure major national event – with geospatial information

Ordnance Survey (OS) provided geospatial information and intelligence to meet the needs of the 2012 Olympics.

OS pioneers smarter CCTV for Salford

This case study looks at how support and data from OS helped to reduce crime, support local authorities and create much safer, more connected, smart cities in the City of Salford in Greater Manchester.