House Extensions London – Built to Exceed Expectations
Expand your living space with expertly planned and built extensions across London, Croydon, and Kent. Delivered on time, on budget, and built with genuine craftsmanship.
Tailored architectural planning
Single-storey, double-storey, and wrap-around extensions designed to complement your lifestyle and property layout.
Complete build management
From groundworks and structural steelwork to first-rate carpentry, plastering, and bespoke glazing installation.
Building regulations and compliance
All structural calculations, council approvals, and sign-offs managed with complete transparency.
Adding space, light, and enduring value to your home
Whether you need an expanded kitchen-diner connecting into your garden, a bright side-return extension, or a multi-storey addition, our team guides you from initial survey through final finishes.
We handle structural alterations, planning coordination, and high-spec carpentry with honest timelines and meticulous attention to detail.
House extensions built with craft and precision
Expand your ground floor, add second-floor bedrooms, or transform your entire layout with dedicated project management across London and Kent.
Expand out into your garden to create expansive open-plan kitchen diners, light-filled family rooms, or dedicated home offices with custom skylights and bifold doors.
Add substantial living space downstairs while doubling your bedroom and bathroom capacity upstairs, completely transforming your property footprint and market value.
Combine side return and rear extensions to dramatically widen and deepen your layout, creating cohesive zones for cooking, entertaining, and relaxed family living.
Built on trust, workmanship, and doing things properly
Home alterations are a significant commitment. We eliminate guesswork with clear schedules, polite and vetted tradespeople, and flawless building standards.
15+ years experience
Proven track record delivering premium residential extensions across South East London, West London, and Kent.
Accredited & fully insured
Federation of Master Builders members, TrustMark registered, and protected by comprehensive public liability insurance.
Dedicated project lead
A single point of contact oversees your build daily, ensuring strict adherence to building control and agreed timelines.
Homeowner feedback
Verified extensions completed across London & Kent
"Prestige handled our double-storey extension seamlessly. The carpentry and finish are exceptional, and they stayed on budget from start to finish."
Oliver & Sophie H.
Dulwich, SE22
"Our wrap-around kitchen diner turned out better than we imagined. Clear daily updates and trustworthy tradesmen throughout."
Marcus T.
Bromley, BR1
Extension questions, answered plainly
Understand permissions, budgeting, structural factors, and turnaround times before your build begins.
Plan your extension with our team
Tell us about your property and goals. We review site access, structural scope, and council constraints to return a clear breakdown.
Itemised cost breakdown
Transparent pricing covering groundworks, structural steel, and interior fit-out.
On-site feasibility visit
We inspect load points, drainage access, and boundary layouts on location.
Dedicated project management
One single point of contact from building control sign-off to completion.
Prefer an immediate conversation?
South East London & Kent office support