Improving proportionality in the building control categorisation of higher-risk building work

18 May 2026

The Ministry of Housing, Communities and Local Government (MCHLG) has launched a consultation seeking views on how the higher-risk building (HRB) control regime can be applied more proportionately to Category A and Category B works to existing HRBs. The aim is to reduce unnecessary administrative burdens while maintaining robust safety standards and allowing the Building Safety Regulator (BSR) to focus on the most complex and safety-critical projects.

The consultation puts forward two options. The government is proposing to implement them both but will await responses from the consultation before finalising the decision:

  • Option 1: Exclude building work within individual flats from Category A (see definition below).
  • Option 2: Amend Category A work to exclude small-scale building work in communal areas.

We’ve published a new briefing which summarises the proposals, and would now like to hear your views.

We would like to hear your views on any of the consultation questions, or broader comments/other issues you would like to raise. Please share your response with Sarah-Jane Gay, Head of Building and Fire Safety Programmes using the contact details below by Friday 22 May.

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What are Category A works?

Category A work involves at least one of the following: 
 

  • Changing the external height or width of the building. 
  • Changing the number of storeys (including adding or removing a mezzanine or gallery floor). 
  • Changing the internal layout. 
  • Changing the number of residential units. 
  • Work to the external wall (excluding work or materials of specified descriptions). 
  • Work that involves passive fire safety measures (such as fire-resistant materials). 
  • Work that involves active fire safety measures (such as sprinklers and alarms). 
  • Work that affects the number or width of staircases or other escape routes. 
  • Work on the building’s common areas, including any work on the external wall which is otherwise not Category A applicable.  

Who to speak to

Sarah-Jane Gay, Head of Building and Fire Safety Programmes