
House Extensions
Bespoke house extensions in Basingstoke designed to add space, improve layout, and enhance the way you live.
- Single & double storey
- Rear, side & wrap-around
- Architect-led design
Design & build house extensions across Basingstoke and Hampshire — finished to the highest standard.



Hundreds of successful projects, built on craftsmanship, communication and a refusal to cut corners.
Hampshire-based experts who know local planning and architecture inside-out.
From first sketch to final handover — one trusted team, one timeline.
Fixed, itemised quotations. No vague allowances. No surprises.
Built to architectural standards using premium materials and trusted trades.
One dedicated project manager. Weekly updates. Always reachable.
Built on word-of-mouth across Basingstoke, Chineham and Old Basing.
From classic rear extensions to ambitious double storey transformations — every project designed and built end-to-end by our team.

Bespoke house extensions in Basingstoke designed to add space, improve layout, and enhance the way you live.

High-quality new build homes delivered with expert planning, workmanship, and attention to detail throughout.

Smart loft conversions that turn unused roof space into practical, comfortable living areas.

Complete home renovations in Basingstoke to modernise, improve, and transform your property.

Garden landscaping to complement your extension — patios, terraces and outdoor living spaces.

Reliable roofing work as part of an extension or as a standalone project, built to last.
A clear, structured journey from first idea to final handover.
We visit your home, listen to your ideas and discuss what's possible.
Detailed measured survey and architectural drawings tailored to your home.
We handle planning permission, building regs and party wall — start to finish.
Our skilled team build to programme with weekly progress updates.
Snagging, sign-off and a full project warranty. Move straight in.
A small selection of completed builds across Basingstoke, Chineham, Old Basing and beyond.

A bright kitchen-diner with sliding doors onto a south-facing Basingstoke garden.

Vaulted ceiling, skylights and bifold doors transformed a tired kitchen.

Bespoke new build delivered end-to-end with premium specifications.

Unused roof space converted into a generous master suite.
Rated 4.9 / 5 across Google and independent reviews.
"The Basingstoke House Extensions team did a great job on my extension and I am very happy with the result. They were hardworking, considerate and tidy, and any issues were promptly resolved. They were competitively priced and came in on budget."
"From the first meeting we knew we were in safe hands. Communication was excellent, the build was tidy and the finish is stunning. We couldn't be happier with our new kitchen extension in Basingstoke."
"A truly professional outfit. Quote was clear, programme was kept, and the team were respectful of our home and neighbours throughout. Highly recommend for any house extension in Basingstoke."
"They guided us through planning, design and build with zero stress. The double-storey extension has transformed our family home."
"Honest, reliable and brilliant craftsmanship. Every detail considered. We've already recommended them to two friends."
"The wrap-around extension is exactly what we hoped for. Fixed price, fixed timeline — both delivered. Rare in this industry."
Indicative price ranges for Hampshire, based on our recent projects. Every home is different — request a fixed quote for accurate figures.
Typical 20–30m² rear or side house extension in Basingstoke, finished.
Adds bedrooms, bathrooms and substantial value to Basingstoke homes.
Combined side + rear with architect-led design.
Every project is unique. Final cost depends on size, specification, glazing, kitchen and groundwork. Request a free consultation for an accurate, fixed quotation.
Get My Extension QuoteEverything Hampshire homeowners ask us about cost, planning, timescales and quality.
Most single storey house extensions in Basingstoke range from £40,000 to £90,000+. Double storey from £80,000 to £180,000+. We provide fixed, itemised quotes after a free consultation so you know exactly what's included.
Proudly building extensions across Basingstoke and the surrounding Hampshire villages and towns.
Get expert advice and a free, no-obligation quote from Hampshire's trusted extension specialists.
Call or email — we'll be in touch within one working day.