National Underground Asset Register (NUAR)

Information on the National Underground Asset Register (NUAR).

Applies to England, Northern Ireland and Wales

About NUAR

The Geospatial Commission, part of the Department for Science, Innovation and Technology, is building a digital map of underground pipes and cables that will revolutionise the way we install, maintain, operate and repair our buried infrastructure - the National Underground Asset Register (NUAR).

Once operational, NUAR is envisaged to deliver £490 million per year of economic growth through increased efficiency, reduced asset strikes (when underground pipes and cables are accidentally damaged) and reduced disruptions for the public and businesses.

The emerging service is improving the efficiency and safety of underground works by providing secure access to privately and publicly owned location data about the pipes and cables beneath our feet. The digital map gives planners and excavators standardised access to the data they need, when they need it, to carry out their work effectively and safely. It also includes features to keep data secure and improve its quality over time.

An initial private BETA version of NUAR, also called the ‘minimum viable product’ (MVP), is live across England and Wales. The MVP includes all core functionality to meet the ‘safe dig’ use case, allowing users to both plan for future adoption and provide valuable feedback to enhance the service further. It includes data from all of the major energy and water providers, such as Welsh Water, Cadent Gas and UK Power Networks, several major telecommunications companies, including CityFibre and Virgin Media O2, as well as smaller providers of these services, transport organisations and local authorities. Find more about the NUARMVP.

Find out more:

In the video below, we provide an introduction to NUAR and its objectives:

NUAR explainer

In the video below, we provide a demonstration of the NUAR platform and its features:

NUAR platform

Current work

  • The NUAR service will continue to be iteratively enhanced in line with user feedback, the MVP coverage will be expanded to Northern Ireland by spring 2024, and the platform will be fully operational by the end of 2025
  • Measures are being sought in Parliament to update existing legislation, taking advantage of opportunities provided by data and technology advancements, to simplify and expedite the process by which asset data is shared
  • discovery project is underway, exploring the potential benefits of widening access to NUAR and the constraints surrounding new propositions. Following an extensive, open and fruitful period of stakeholder engagement, we are now in the process of analysing all the ideas captured. As a result, while the Geospatial Commission will continue to work closely with stakeholders and will always welcome feedback on the NUAR programme as a whole, we will not be incorporating new ideas into the discovery project at this stage. Please look out for future updates on this webpage, for the latest news on this exciting work as it progresses.

Contact us

Please email if you:

  • are an underground asset owner in England, Wales or Northern Ireland, who would like to sign-up to NUAR
  • are an active user, or working for an organisation that is already fully signed-up to NUAR, and have a query
  • have any other questions or comments about the project

For media enquiries, please email

Published 22 March 2022
Last updated 12 June 2024 + show all updates
  1. Details of NUAR onboarding in 60 webinar and NUAR update webinars are no longer taking place and removed from this page.

  2. Summer webinar dates added

  3. Discovery project section updated following the the deadline for new suggestions by 29 April 2024. April onboarding webinars (10th & 24th) removed. May onboarding webinars added

  4. Discovery project information updated and April onboarding webinars added

  5. New March webinar dates added.

  6. On boarding in 60 webinars and information on the discovery project updated.

  7. webinar dates for February and May added

  8. New webinar dates added

  9. new webinar dates added for December and January

  10. updated to reflect that NUAR MVP is now accessible across all parts of England and Wales

  11. NUAR update webinar added

  12. NUAR platform demonstration video added. New Webinars added for October & November

  13. August webinars removed. New webinars added for September and October

  14. Blog posts removed and NUAR minimum viable product (MVP) section added

  15. "A guide to NUAR" PDF removed

  16. Blog link added - NUAR available to users in first UK locations

  17. 'About NUAR' and 'Getting Involved' sections updated.

  18. Updated version of "NUAR in a nutshell" document added

  19. Project update added to "The story so far" section

  20. New NUAR in a Nutshell document added which includes participation progress update

  21. New intro video and new NUAR platform video replacing previous videos

  22. NUAR in a nutshell document changed from 'Coming Soon' to the 'Future of NUAR'

  23. NUAR consultation details added

  24. NUAR in a nutshell document added

  25. NUAR prototype platform video added

  26. First published.