Building regulations are required for almost all major home improvement work — yet many homeowners skip them, creating problems when they come to sell. Answer a few quick questions to find out whether your project needs building regulations approval, which regulations apply, and whether your installer can self-certify.
Almost all structural work, new rooms, and major system changes require building regulations approval. Some work can be self-certified by registered tradespeople. Small outbuildings and porches may be exempt.
Building regulations and planning permission are completely separate. You may need both, one, or neither depending on your project.
Select the type of work you are planning. Some work types will show additional questions — answer them all, then click “Check my project”.
Everything you need to know about building regulations in England — what they cover, how to apply, costs, timescales, and the difference between Full Plans and Building Notice.
Free GuideThe two main routes for building regulations approval compared. Full Plans is safer for larger projects; Building Notice is faster for straightforward work. This guide explains which is right for you.
Free GuideUnderstanding the difference between planning permission and building regulations is the first step. This guide covers the Class A PD rules for rear extensions in detail.
Free GuideFull breakdown of all the costs involved in getting a project built — planning fees, building regulations, architect, structural engineer, and party wall surveyor.
Removing a loadbearing wall without building regulations sign-off is one of the most common conveyancing issues. Solicitors now routinely ask for building regulations completion certificates for any wall removal — and if you can’t produce one, you may face a sale falling through.
Electrical work in kitchens and bathrooms must be done by a Part P registered electrician or notified to building control. Work done by an unregistered electrician without notification is technically non-compliant and will flag during a house sale.
Many older loft conversions were done without building regulations — especially fire safety (Part B) and structural (Part A) compliance. A loft conversion without a completion certificate is a significant red flag for buyers and mortgage lenders.
Garage conversions always need building regulations for insulation (Part L) and fire separation from the main house (Part B). A garage conversion without sign-off may not count as habitable space, affecting the property’s value and mortgage lending.