Building Regulations are a separate approval from planning

What Building Regulations actually cover

The regulations are split into parts covering structure, fire safety, sound insulation, ventilation, drainage, energy efficiency, electrical safety and access, among others. A loft conversion, for example, has to satisfy fire escape requirements for the whole house, not just the new room, which often means upgrading doors and detectors on the floors below.

An extension has to meet current thermal performance standards for its walls, roof and glazing, which is one reason older solid-wall houses sometimes need more insulation thought through at design stage than the extension itself might suggest.

Full plans versus building notice

A full plans submission means detailed drawings are checked and approved before work starts, which suits complex projects like structural openings or loft conversions where getting it wrong is costly to correct. A building notice is a simpler route often used for smaller, well-understood jobs, but it does not give you the same upfront certainty that the design will satisfy the regulations.

We work with whichever route suits the project and keep the paperwork trail so the client has evidence of compliance when the job is finished.

Site inspections during the build

Typical inspection points include the foundation excavation before concrete is poured, damp proof course level, drainage before it is covered, and structural steel or timber before it is enclosed. Missing an inspection can mean opening work back up to prove compliance, which costs time and money that a bit of planning avoids.

We schedule inspections as part of the programme so the building control officer sees the work at the right stage without the job standing idle waiting for a visit.

Completion and the certificate

At the end of the job, once the final inspection is satisfied, building control issue a completion certificate. Keep this document with the house deeds, because it is routinely requested by solicitors when a property with recent building work is sold.

For work carried out without approval historically, a regularisation application can sometimes bring it up to standard retrospectively, though this is more involved than getting it right from the start.

Common questions