In order to access these services you must be in possession of a national licence for the data from the OS which covers the relevant datasets

The OS MasterMap and VML vector basemap is designed to be used as background mapping providing a seamless map view from small to large scales with a consistent cartographic representation.

The sources of data are Ordnance Survey ZoomStack data for small and mid-scales, with VML and MasterMap used for the largest scales.

The currency of the data is;

MasterMap - 03/2021
Vector Map Local - 04/2021
Zoomstack - 12/2020

The coverage of the map service is GB.

The map projection is British National Grid.

Updated: 11/05/2021