Extension Builder in Brighton

Brighton's Victorian and Edwardian terraces, alongside the sprawling inter-war semis that stretch toward Hove and Portslade, create constant demand for thoughtful extension work. Many Brighton homeowners inherit compact period properties—narrow kitchens, small bathrooms, rooms that don't suit modern living—and need a builder who understands how to extend sensitively without crushing the character that makes these homes valuable. Finding an extension builder in Brighton who grasps both the structural realities of seaside housing and the planning sensitivities of a conservation-heavy area takes careful searching. Whether you're extending a Kemp Town villa, a Westdene semi, or a converted flat in the North Laines, you need someone local who's navigated Brighton's planning officers, understands building regulations, and can manage the logistics of working in a busy, densely built city where skip space and access are genuine challenges.

Common Extension Builder Services in Brighton

Rear and side house extensions

Kitchen extensions and open-plan conversions

Listed building extensions and conservation work

Ground floor and first floor extensions

Flat roof and pitched roof structures

Planning permission and building regulation support

Renovation and structural modification

Extension Builders Serving Brighton and Surrounding Areas

Brighton's housing stock is dominated by period properties whose owners actively invest in extensions: the dense Victorian and Edwardian terraces of the Lanes, Kemptown, and Hanbury conservation areas drive consistent demand. You'll also serve the growing commuter belt towards Lewes and Ditchling, where larger plots support more ambitious builds. The city's creative economy and rental investment market mean clients expect professional documentation and transparent cost tracking—often managing multiple contractors and requiring detailed progress invoicing.

Frequently Asked Questions

How do I find a reliable extension builder in Brighton?

Look for builders registered with TrustMark, FENSA, or Part P schemes relevant to your work. Ask for local references from similar period properties—Brighton's conservation areas have specific planning requirements. Get three quotes breaking down labour, materials, and timescales clearly.

How much does an extension cost in Brighton?

Costs vary widely based on property type and location. Victorian terraces in conservation areas (Kemptown, the Lanes) typically cost more due to planning restrictions and character requirements. Expect £1,500–£3,000+ per square metre. Get itemised quotes that separate structural, electrical, and compliance work.

Do extension builders in Brighton need planning permission?

Most rear or side extensions need planning permission—particularly in conservation areas covering much of central Brighton. Some fall under permitted development if they meet strict size and setback rules. Your builder should submit applications and liaise with the council; factor in 8–12 weeks for approval.

What should I ask an extension builder before hiring?

Confirm Building Regulations approval, planning experience in conservation areas, insurance details, and a written contract with payment milestones. Ask how they handle unforeseen issues (asbestos, hidden structural damage) common in older Brighton homes.

Not ready to sign up? Get free local trade tips & offers

We'll send you useful insights for extension builders in Brighton, plus exclusive offers when you're ready.

Grow your extension business without the paperwork

Quote faster, invoice with automatic VAT, track job costs in real time, and stay HMRC compliant. BizHub365 keeps your Brighton extension business organised so you can focus on building. Sign up free today.

Are you a Extension Builder?

Get listed in Brighton

Claim your spot on this page. Customers searching for a extension builder in Brighton will see your business first.

Claim Your Listing

No card required to start

Why Extension Builders Choose BizHub365

Running your extension building business in Brighton means juggling multiple jobs across the city's mix of Victorian terraces, Edwardian villas, and modern seafront properties—each with different timescales and client expectations. BizHub365 handles the admin burden: create itemised quotes with labour and materials broken down by phase, track expenses as you move between sites, and manage invoicing with automatic VAT calculation. You'll prepare self-assessment faster, keep CIS deductions organised if you're taking on subcontractors, and maintain a clear profit view across seasonal fluctuations. Your time is better spent on site than in spreadsheets.

Platform Features

Create & send professional invoices
Track expenses and receipts
HMRC MTD VAT compliance
Manage quotes and jobs
Customer CRM and bookings
Payroll and employee management
AI-powered business assistant
From £29/month — no setup fee

How Much Does a Extension Builder Cost?

See typical price ranges for extension builder services in Brighton, including what affects the final cost.

View Brighton Pricing Guide

Extension Builders in Other Areas

View All Locations