# OS Open Greenspace Technical Specification

OS Open Greenspace depicts the location and extent of greenspaces, such as parks and sports facilities, which are likely to be accessible to the public. Where appropriate, it also includes access points to show how to get into these sites. Its primary purpose is to enable members of the public to find and access greenspaces near them for exercise and recreation.

OS Open Greenspace is an OpenData product. It is part of the OS OpenData portfolio, which currently consists of a range of datasets, such as [OS VectorMap District](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-vectormap-district), [OS Open Map – Local](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-openmap-local), [OS Terrain 50](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-terrain-50), and [OS Open Roads](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-open-roads). For more information on the OpenData portfolio, see the [OS OpenData Downloads page of the OS Data Hub](https://osdatahub.os.uk/downloads/open).

<figure><img src="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2F2zJ4cX3CuvNiycHBnSgq%2F1.jpeg?alt=media" alt="Example map showing OS Open Greenspace polygons and access points overlaid on an OS OpenMap – Local basemap. The polygons depict areas of greenspace while the points depict access points into the greenspace areas."><figcaption><p>OS Open Greenspace polygons and Access Points overlaid on an OS OpenMap – Local basemap.</p></figcaption></figure>

## Formats <a href="#bookmark11" id="bookmark11"></a>

OS Open Greenspace is available in the following formats:

* Geography Markup Language (GML) 3.2.1
* Esri shapefile
* GeoPackage
* Vector tiles (MBTiles)

## Index <a href="#bookmark25" id="bookmark25"></a>

* [Data structure](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-technical-specification/data-structure)
* [Feature types](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-technical-specification/feature-types)
* [Code lists](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-technical-specification/code-lists)
* [GML overview](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-technical-specification/gml-overview)
* [GeoPackage overview](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-technical-specification/geopackage-overview)
* [Vector tiles overview](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-technical-specification/vector-tiles-overview)
* [Attribute mapping](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-technical-specification/attribute-mapping)