Product supply information
Product supply format
Building Height Attribute data is supplied in comma-separated values (CSV) file format. Files will not be compressed.
Data will be refreshed every six months.
Product supply mechanism
OS MasterMap Topography Layer – Building Height Attribute is supplied as an online download. You can download data in CSV format from the OS Data Hub.
The product is currently still available for customers to request through OS Orders.
Coverage and file sizes
OS MasterMap Topography Layer – Building Height Attribute data will be supplied in 5 km tiles. Data will be uncompressed and file sizes will vary significantly depending on the number of buildings and structures contained within the 5 km² area. For customers with a full holding of OS MasterMap Topography Layer, a full Great Britain (GB) set is also available. For those customers who do not have a full OS MasterMap Topography Layer supply, only tiles that intersect OS MasterMap Topography Layer holdings may be downloaded.
Each 5 km² tile will contain Building Height Attribute data for any building that is partly or wholly contained within that tile. As such, buildings that traverse tile boundaries will be duplicated in contiguous holdings.
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