Ordnance Survey – Great Britain's national mapping agency
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The questions below are specifically for OS MasterMap Address Layer 2. 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.
What are the benefits of Address Layer 2 over Address Layer?
Where does the OS MasterMap Address Layer 2 data come from?
Are all addresses in OS MasterMap Address Layer 2?
How current is OS MasterMap Address Layer 2?
Are the OS MasterMap Address Layer 2 addresses in the right place?
Are all Address Layer 2 addresses matched to buildings in the Topography Layer?
How do I migrate from ADDRESS-POINT to Address Layer 2?
Can we purchase Address Layer 2 by Government Office Region (GOR)?
Is Address Layer 2 available in comma separated value (CSV) format?
Can partners supply OS MasterMap Address Layer 2?
Do l have to take Topography Layer in order to benefit from Address Layer 2?
Will dual running of Address Layer 2 and ADDRESS-POINT be available?
How do I order OS MasterMap Address Layer 2?
Is OS MasterMap Address Layer 2 BS7666 compliant?
How do you generate locality names in OS MasterMap Address Layer 2?
Is Ordnance Survey planning to become the definitive source for localities?
Where did the Welsh alternatives in Address Layer 2 come from?
How often is OS MasterMap Address Layer 2 updated?
How often is the data in OS MasterMap Address Layer 2 updated?
Why are some Valuation Office Agency (VOA) unique identifiers (UARNs) missing?
Which references are in the Address Layer 2 ID cross-referencing table?
Is the Address Layer 2 ID cross-referencing table free of charge?
Are there any plans to withdraw ADDRESS-POINT or Address Layer?