From the list of Approved Documents, I downloaded Approved Document F (Ventilation). It has a reference to "regulation 3":
7.21 If any of the work being carried out in the kitchen or bathroom of an existing building is ‘building work’, as defined in regulation 3 of the Building Regulations…
But I can't find regulation 3. Which Approved Document is it in, or is there a separate list of Regulations?
Best Answer
Follow this trail from http://www.planningportal.gov.uk/buildingregulations/
3. Meaning of Building Work
Which leads you to The Building Regulations 2010, No. 2214, PART 2, Regulation 3