Current building regulations provide guidance in conjunction with BR 211 and other documents/organisations to give all stakeholders up-to-date information with regard to protecting new and existing structures from the risk of radon ingress. With the threat that radon has to human health, it is important that all stakeholders, or any given project design team, use the guidance within this document and BR 211 to provide structures that are fit for purpose and safe for all to live/work within.