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For the complete documentation index, see llms.txt. This page is also available as Markdown.

Buildings and Infrastructure Portfolio

This page provides an overview of the OS downloadable products available in the Buildings and Infrastructure Portfolio.

Buildings and infrastructure products

This portfolio provides information about the built environment. It brings together detailed data on buildings, structures and transport infrastructure to support planning, asset management and emergency response with precision and clarity.

The following downloadable products are available within the Buildings and Infrastructure Portfolio:

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OS MasterMap Topography Layer

A detailed and accurate view of the landscape of Great Britain, representing both the manmade and natural environment, with over 500 million real-world objects.

Example image showing OS MasterMap Topography Layer – Building Height Attribute product data.

OS MasterMap Topography Layer – Building Height Attribute

An enhancement to OS MasterMap Topography Layer that provides building height properties to manage assets, plan works and visualise urban density.

Example image showing OS Open Linked Identifiers product data over a background map.

OS Open Linked Identifiers

An open dataset of cross-referenced identifiers detailing relationships between Unique Property Reference Numbers (UPRNs), Unique Street Reference Numbers (USRNs) and Topographic Identifiers (TOIDs).

Example image showing OS Open TOID product data over a background map.

OS Open TOID

An open dataset of unique identifiers for landscape and built environment features with a generalised location extracted from OS MasterMap products.

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