The independent self-regulatory body for the radon protection industry

Radon protection in New Build

UK Building Regulations

In the United Kingdom, Building Regulations are the minimum standards for design, construction and alterations in all new buildings. The regulations are developed by the UK government and approved by Parliament. Protection against the ingress of hazardous ground gas into new constructions is covered within Approved Document Part C:  Site preparation and resistance to contaminates and moisture.

This section includes:

  • The weather-tightness and water-tightness of buildings
  • Subsoil drainage
  • Site preparation
  • Measures to deal with contaminated land; radon, methane, and all other site-related hazardous and dangerous substances

Where to find UK building regulations

What areas are at risk from radon?

Building Research Establishment radon information

Approved Document Part C : RADON advises that guidance in protective measures within construction is sought by obtaining Building Research Establishment document BR 211.

The potential risk to life is identified using the indicative maps published by Public Health England, these are now updated online and are address specific using the postcode checker.

What protective measures are required?

Depending on the level of risk identified using the BRE postcode checker, new constructions will require:

  1. No protective measures, or…
  2. Basic protective measures, or…
  3. Full protective measures, or…
  4. Specific measures for subterranean construction

What is BR211?

BR211 gives guidance for reducing the concentration of radon in new buildings, extensions, conversions and refurbishment projects in order to reduce the risk to occupants of exposure to radon. It provides practical details on protective measures for both domestic and non-domestic buildings. This guide is intended for use in England, Wales, Scotland and Northern Ireland. It supports building regulations for England, Wales and Northern Ireland, and building standards in Scotland. This guide was originally introduced in 1991 and amended in 1992, 1999, 2007 and 2015.

BR211 (2023 edition) Guidance on protective measures for new buildings (including supplementary advice for extensions, conversions and refurbishment projects) is a combined guide that replaces three earlier guidance documents:

1:BR 211 RADON:

Guidance on protective measures for new buildings, originally introduced in 1991 and amended in 1992, 1999,  2007 & 2015  covering England and Wales.

2: BRE Report BR 376, Radon

Guidance on protective measures for new dwellings in Scotland, introduced in 1999.

3: BRE Report BR 413, Radon

Guidance on protective measures for new dwellings in Northern Ireland, introduced in 2001.

The principal changes over previous editions are:

       – Combined guidance for England, Wales, Scotland and Northern Ireland

       – Clearer explanatory guidance on specifying and installing radon-protective measures

       – Updated guidance to reflect recent amendments to building regulations and building standards

       – Additional radon management checklist

       – Improved references to inspection, on-site quality management and specifications

       – Appendix A replaced by links to UKradon

       – Appendix B replaced by Radon Protective Measures Quality Management Record

Health & Safety Executive radon guidance

The Health & Safety Executive provides guidance on protection from Radon in the workplace.

…is correctly allocated and signed off, using the Radon-protective measures quality management checklist contained within Chapter 7 – Quality of Construction and inspection, testing and reporting of BR 211. Local authorities, clients, main contractors and householders may require proof of the completion  for Building Occupancy.

(Chapter 8 of BR211 – Information to be provided to the purchaser, recommends information that should be provided to the purchaser of  a building.)

Course booking Terms and Conditions

  1. All course fees are payable in full at time of reservation unless agreed otherwise.
  2. A refund of 60% of the amount paid will be made in the event of receipt of written cancellation at least FOUR weeks prior to the date of the course. No refund can be made on cancellation thereafter.
  3. If a candidate cannot attend the course on the agreed date, the candidate may be able to attend the next identical course. If they miss this next identical course, they cannot attend another without the payment of course fees. 
  4. Substitution of delegates (from the same company/firm) can be made at any time prior to the start of the course.
  5. In the event that a course is oversubscribed, The Radon Council reserves the right to place candidates on the course as the course fee is paid. When the course is full, the remaining candidates will be moved to the next suitable course. 
  6. All course documentation is provided solely for the private training and study purposes of individual delegates. Copyright is reserved on all material prepared and provided by The Radon Council.
  7. The Radon Council reserves the right to make any alterations to course arrangements necessitated by circumstances beyond its control.