Summary

Theme​	Land, Structures, Transport, Water ​[1]
Collection​	Feature collections
Feature Types​	​Land, Rail, ​Road Track or Path, Structure, Water [1]
Coverage​	Great Britain​ (‘Excavated or Deposited’, ‘Open Vegetation’, ‘Mineral’, ‘Multiple’, ‘Trees’, ‘Under Construction’ or ‘Water’ [1] topographic area features) [2] [3]
Geometry​	Polygons​
Data Sources​	Classification of topographic area features is from existing ground and remote survey methods. Automated classification from OS aerial imagery (25cm) to determine percentage cover value.
Data Updates​	3-year cyclical revision from OS aerial imagery. Updates are processed up to daily into OS NGD.
Supply Type​	Full supply and Change Only Update (COU)​.
Supply Formats​	GeoPackage or CSV download from OS NGD Select+Build. GeoJSON from OS NGD API – Features​.

[1] No percentage value for Water features.

[2] Other features are included in scope where they have a natural land cover, i.e.  areas under construction are included because they are generally sand or bare earth until construction is complete. ‘Constructed’ or ‘Made’ features are out of scope.

[3] Only features above the Mean High Water (Springs) line have a percentage value.