# OS MasterMap Greenspace Layer Overview

OS MasterMap Greenspace Layer gives a comprehensive view of the green spaces within an urban area. The dataset consists of topographic areas published in [OS MasterMap Topography Layer](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-mastermap-topography-layer), with additional green space-specific attribution to describe their function. It includes both publicly accessible and private green spaces, sports facilities and natural environment features, to give a comprehensive view of spaces that are important for applications such as environmental management, health, planning, or habitat mappings.

This product is designed for PSGA customers with these uses in mind.

## Key features <a href="#id-1.1-key-features" id="id-1.1-key-features"></a>

The key features of the OS MasterMap Greenspace Layer are:

* Comprehensive coverage of the natural environment in major urban areas.
* Identifies green spaces, both public and private.
* Built from a sub-set of OS MasterMap Topography Layer and retains the detailed features from this product and their positional accuracy.
* Inclusion of OS MasterMap Topography Layer TOID attribute to allow links between these OS MasterMap products.
* Information on both form and function of the green space areas to better describe the environment of these spaces.
* Ability to relate to the OS Open Greenspace product through the Greenspace IDs.
* Space for up to two forms and two function categories per feature to allow for complex land areas.

## Product applications <a href="#id-1.2-product-applications" id="id-1.2-product-applications"></a>

OS MasterMap Greenspace Layer supports a wide range of customer applications that use geographical information. The product can be used on its own, or combined with other Ordnance Survey products, such as [OS MasterMap Topography Layer](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-mastermap-topography-layer), [OS MasterMap Sites Layer](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-mastermap-sites-layer), and [OS Open Greenspace](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace). Applications of the OS MasterMap Greenspace Layer product include, but are by no means limited to:

* Providing detailed data to support audit, policy, planning, environmental planning, and research.
* Analysing air quality and use of amenities.
* Managing and planning green spaces efficiently.
* Evaluating Britain’s natural habitat and environment.
* Encouraging activity for all, improving mental and physical health.