Ordnance Survey – Great Britain's national mapping agency
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The questions below are specifically for OS MasterMap Address Layer. Please click on the frequently asked question to view the answer.
If you wish to search all the OS MasterMap FAQs please use the search box on the right, or return to the generic OS MasterMap FAQs page.
Where does the OS MasterMap Address Layer data come from?
Are all Address Layer addresses matched to buildings in the Topography Layer?
Are all addresses contained in OS MasterMap Address Layer?
How current is the data in OS MasterMap Address Layer?
Are the OS MasterMap Address Layer addresses in the right place?
In the Address Layer, how many addresses are in their final positions?
Are addresses in Address Layer more expensive than ADDRESS-POINT®?
Will ADDRESS-POINT be withdrawn from the market?
What is the migration strategy - ADDRESS-POINT to Address Layer?
Can we purchase the Address Layer by Government Office Region (GOR)?
How long will Ordnance Survey maintain ADDRESS-POINT references?
Will the OS MasterMap Address Layer be provided in CSV format?
Can partners supply the OS MasterMap Address Layer?
Do l have to take the Topography Layer to benefit from the Address Layer?
Will dual running of Address Layer and ADDRESS-POINT be available?