Building Regulations in Lewisham — A Plain English Guide

If you're planning a building project in Lewisham, understanding building regulations can feel daunting. At Heath Projects Limited, we work across Blackheath and the wider Lewisham borough every day — so we've put together this straightforward guide to help you get started.

What Are Building Regulations?

Building regulations are a set of minimum standards for the design, construction, and alterations of buildings. Unlike planning permission, they focus on how something is built rather than what is built. They cover everything from structural integrity and fire safety to energy efficiency and drainage.

Do You Need Them for Your Project?

Most significant works require building regulations approval. This includes:

• Extensions and conversions — loft conversions, rear extensions, and garage conversions all typically require approval.
• Structural alterations — removing load-bearing walls or making changes to your roof structure.
• New electrics and plumbing — certain installations must be notified to the local authority.
• New builds — full compliance is mandatory.

Smaller projects like-for-like repairs may be exempt, but it's always worth checking.

How to Apply in Lewisham

You can submit a Full Plans Application or a Building Notice through the London Borough of Lewisham's Building Control team. A Full Plans application is generally recommended for larger projects as it gives you approved drawings before work begins, reducing the risk of costly changes later.

Working With a Registered Building Control Approver

Alternatively, you can use a private Registered Building Control Approver — the role that replaced Approved Inspectors in April 2024 — rather than the council. Either route is valid — what matters is that inspections are carried out at key stages of your build.

Let the Experts Handle It

Navigating building regulations doesn't have to be stressful. The team at Heath Projects Limited has years of experience delivering compliant, high-quality builds across Lewisham and Blackheath. You can book a free site visit and we'll talk through what your project needs.

Shaping spaces, defining standards.