The Regulatory Reform (Fire Safety) Order 2005 applies to all non-domestic premises, including those which feature experiential escape rooms. Under the Fire Safety Order, the person responsible for the premises must undertake and review regularly a fire risk assessment of the premises and put in place and maintain adequate and appropriate fire precaution measures to mitigate against the risk to life from fire. This includes ensuring adequate escape routes.
The Government has made available a suite of premises-specific guidance to support responsible persons in complying with the provisions of the Fire Safety Order. These are available here: https://www.gov.uk/workplace-fire-safety-your-responsibilities/fire-risk-assessments.
As the enforcing authority for the Fire Safety Order in their area, each local fire and rescue authority is required by the Fire and Rescue National Framework to have in place a risk-based inspection programme for auditing compliance. Where a potential new risk emerges, it is for individual authorities to determine how best to use their resources to reduce the risks facing the communities.