# OS MasterMap Greenspace Layer Technical Specification

OS MasterMap Greenspace Layer gives a comprehensive view of the greenspaces within an urban area. The dataset consists of topographic areas published in OS MasterMap Topography Layer, with additional greenspace-specific attribution to describe their function. It includes both publicly accessible and private greenspaces. This product has been designed for Public Sector Geospatial Agreement (PSGA) customers.

<figure><img src="/files/TytEpmIw6jXVpZVSdsiY" alt="OS MasterMap Greenspace Layer data overlaid on OS MasterMap Topography Layer"><figcaption><p>OS MasterMap Greenspace Layer data overlaid on OS MasterMap Topography Layer</p></figcaption></figure>

## Index

The OS MasterMap Greenspace Layer technical specification contains the following sections:

* [Product classification and structure](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/product-classification-and-structure.md)
* [Feature types](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/feature-types.md)
* [Code lists and Enumerations](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/code-lists-and-enumerations.md)
* [Function hierarchy](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/code-lists-and-enumerations/function.md)
* [Form hierarchy](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/form-hierarchy.md)
* [OS Open Greenspace lookup table](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/os-open-greenspace-lookup-table.md)
* [GML overview](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/gml-overview.md)
* [ESRI shapefile overview](/os-downloads/products/water-portfolio/os-open-rivers/os-open-rivers-technical-specification/esri-shapefile-overview.md)
* [GeoPackage overview](/os-downloads/products/land-and-terrain-portfolio/os-mastermap-greenspace-layer/os-mastermap-greenspace-layer-technical-specification/geopackage-overview.md)


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