A catalogue listing the real-world objects (RWOs) present in OS MasterMap data and the features and attributes associated with them is available as a PDF download below.
Predefined stylesheets for OS MasterMap Topography Layer are available for download from the OS MasterMap Topography Layer Stylesheets GitHub repository. To download a ZIP containing all stylesheets, navigate to Code > Download ZIP.
The XML File Repository License, covering the terms and conditions for the use of all Ordnance Survey XML schemas, is made available through the in the Resources section.
The OS MasterMap XML schema is available from the application schemas page on the Ordnance Survey website. Previous versions of this schema are available to download from the website, the most recent version is included below: