Publish your derived data with confidence

If you use OS data to create a derived dataset, there are times when you’ll want to publish this. Discover how

What is derived data and what does it mean for me?

Derived data is new information or datasets that are created from existing data. It’s the data you create for your organisation using OS data as a source. 

You can use most OS data licensed to you under the Public Sector Geospatial Agreement (PSGA) to create new geographic datasets of your own.

How do I publish a derived dataset?

There are two routes by which public sector members may be able to publish Ordnance Survey (OS) derived data under the Open Government Licence (OGL).

  • Other PSGA data

    For our other PSGA data, your public sector Member Licence lets you publish your derived data under Open Government Licence if you meet our presumption to publish criteria. Read the criteria and tell OS about your dataset.


If your derived dataset does not meet our publishing criteria, you may still be able to publish it under the Open Government Licence in accordance with our exemptions process.

What derived datasets can I publish with confidence?

Below are common categories of derived datasets published using our presumption to publish criteria. Even if your derived dataset is not covered in the categories below, it still may be covered under Presumption to Publish. Alternatively, you can request an exemption.

Presumption to Publish Categories

Read explanations of various categories covering presumption to publish criteria.


Presumption to publish data includes the following types of information in local plans:

Various planning application data captured by Local Authorities also fall within the presumption to publish, as follows:

  • a co-ordinate of the location of the planning application,
  • a polygon depicting the extent of the feature which is planned to be built (i.e. the extension), and
  • a polygon depicting the extent of the entire property boundary.

Note that a polygon depicting the extent of the original building (i.e. the building to which an extension is being added), or a polygon depicting the extent of the altered building (e.g. a house as extended/altered), do not fall within the presumption to publish.

Areas for development

Polygons and/or co-ordinates depicting areas where planning permission has been requested or granted for the following large-scale housing, employment or mixed-use developments, where you’re the authority responsible for granting planning permission: 

  • Creating 10 or more residential units; and/or  
  • A residential development on a site of 0.5 hectares or more; and/or 
  • A non-residential development on a site of at least one hectare; and/or 
  • A change of use of 1,000 square metres or more of gross floor space (not including housing). 

Public assets and/or Citizen services

The address, and/or co-ordinate depicting the location, and/or the polygon representing the extent of i) public sector assets and ii) facilities that serve or support the public.  Examples include libraries, school catchment areas, advice agencies, health and well-being centres, sports centres, litter bins, dog waste bins, and polling stations. 

Operational Boundaries

Polygons and/or co-ordinates relating to your operational boundaries. An example includes your area of jurisdiction.

Electoral administration

Polygons and/or co-ordinates depicting Parliamentary and local boundaries. 


Co-ordinate depicting the location, and/or the polygon representing the extent/location of heritage and archaeological sites. Examples include ancient burial sites and tumuli and listed buildings. 


Co-ordinate depicting the location, and/or the polygon representing the extent/location about facilities that protect the public. Examples include CCTV cameras and life ring stands.


Co-ordinates and/or polygons depicting locations or areas relating to disease control and food inspections. Examples include food hygiene inspections on livestock farms.


Co-ordinates and/or polygons depicting locations connected to the environment and green policies. Examples include nature reserves, wetlands and air quality monitoring devices.


Co-ordinates and/or polygons depicting defined routes and locations and things that facilitate travel. Examples include gritting routes, bus stops, and bridleways.

Public Rights of Way

Well-established presumption to publish data includes public rights of way – where the dataset was created by you in your capacity as the highway authority and surveying authority and you have a legal obligation to maintain the Definitive Map and Statement of Public Rights of Way (PRoW) for the area covered.

Third-party data

Many OS products have data from third parties, like Royal Mail, and they own its intellectual property. You'll also need permission from these third parties to use their data.

Products with third-party data include:

  • Address data (e.g. AddressBase)
  • OS MasterMap Highways Network (Roads, RAMI and Paths)
  • OS MasterMap Highways Network with speed data
  • OS MasterMap Water Network Layer
  • 1:25 000 Scale Colour Raster and 1:50 000 Scale Colour Raster
  • Code-Point and Code-Point with Polygons

(Address data can be made available under various terms under the PSGA, for instance the End User Licence or using the licensee's obligations for public viewing).