Ordnance Survey – Great Britain's national mapping agency
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User guide
The user guide is an introduction to the OS MasterMap Address Layers that offers guidance and advice on how to derive the maximum value from the product.
Download the combined Address Layer and Address Layer 2 user guide PDF (3.0 Mb)
Technical specification
The technical specification provides specific details of the structure, content and format of OS MasterMap Address Layer for customers using the data in a geographical information system (GIS) or other computer systems. The technical specification should be used in conjunction with the user guide.
Download the Address Layer technical specification PDF (404Kb)