4.9/5 · 127 Google reviews

House Extensions Hampshire

Design-led, fully insured house extension builders serving Basingstoke and the surrounding Hampshire area. From open-plan kitchen extensions to full two storey builds - we add light, space and lasting value to your home.

Trades with 10+ years' experience250+ projects deliveredFixed pricing
Sun-filled open-plan kitchen extension with bifold doors in a Basingstoke home
Fully Insured
Directly-Employed Trades
Building Regs Compliant
10+ Years' Trade Experience
How it works

Our simple 5-step process

A clear, structured journey from first idea to final handover.

01

Step 01

Free Consultation

We come to you, get to know your goals and explore what your home could become - no pressure, no cost.

02

Step 02

Survey & Design

A precise measured survey feeds bespoke architectural drawings, shaped around how you actually want to live.

03

Step 03

Planning & Approvals

We take care of planning permission, building regulations and party wall matters so you never have to chase paperwork.

04

Step 04

Construction

Our trusted team builds to a clear schedule, keeping your home tidy and you informed with weekly updates.

05

Step 05

Completion & Handover

We finish with a thorough snagging check, full sign-off and a project warranty - all that's left is to enjoy your new space.

What we build

Extensions designed around your home

From a single room to a whole new floor, explore our specialist house extension and conversion services across Basingstoke.

Single Storey Extensions in Hampshire project

Single Storey Extensions

A single storey extension is the most popular way to add light, space and value to a Basingstoke home - perfect for open-plan kitchen diners, garden rooms and growing families.

8-12 weeksFrom £30,000
Double Storey Extensions in Hampshire project

Double Storey Extensions

A two storey extension delivers maximum space for your investment, adding both ground floor living areas and extra bedrooms or bathrooms above to your Basingstoke property.

12-18 weeksFrom £55,000
Kitchen Extensions in Hampshire project

Kitchen Extensions

Create the heart of your home with a bespoke kitchen extension. We design light-filled, open-plan kitchen diners for homeowners across Basingstoke and Hampshire.

8-14 weeksFrom £35,000
Rear & Side Return Extensions in Hampshire project

Rear & Side Return Extensions

Side return and rear extensions transform awkward, unused outdoor space into bright, practical living areas - a clever way to extend Basingstoke homes without losing the garden.

8-12 weeksFrom £30,000
Wrap-Around Extensions in Hampshire project

Wrap-Around Extensions

A wrap-around extension combines a rear and side return into one dramatic L-shaped space, delivering the biggest possible footprint and a true open-plan transformation.

12-20 weeksFrom £55,000
Loft Conversions & Loft Extensions in Hampshire project

Loft Conversions & Extensions

A loft conversion or loft extension is one of the most cost-effective ways to add a bedroom, en-suite or home office to your Basingstoke home - using space you already own.

6-10 weeksFrom £35,000
Garage Conversions & Garage Extensions in Hampshire project

Garage Conversions & Garage Extensions

Converting an integral or attached garage is a fast, affordable way to gain a home office, playroom or extra bedroom without changing your home's footprint.

4-6 weeksFrom £15,000
Garden Landscaping in Hampshire project

Landscaping

Complete your project with beautifully designed outdoor space. We create patios, paving, planting and garden rooms that connect your extension to a stunning landscaped garden across Basingstoke and Hampshire.

2-6 weeksFrom £8,000
Our work

Case studies

Detail of expert brickwork meeting glazing on a Basingstoke house extension

10+

years' trade experience behind every build

Why choose us

House extension builders Basingstoke homeowners trust

Design-led, not just built

Every extension begins with thoughtful design that maximises light, flow and the way you actually live.

Fixed, transparent pricing

A detailed written quote with no hidden extras, so you know exactly what your extension costs from day one.

Planning & building regs handled

We manage planning permission, building regulations and party wall matters across Hampshire on your behalf.

Trusted local craftsmen

Skilled, directly-employed trades who treat your home with the care it deserves - clean, tidy and respectful.

Homeowner stories

Loved by Basingstoke homeowners

From the first consultation to handover, the whole team was professional and tidy. Our single storey kitchen extension has completely transformed how we use our home. Couldn't recommend them more highly.

Sarah & James M.

Chineham, Hampshire

We had a two storey extension to add two bedrooms and a bathroom. The fixed price gave us total confidence, and they handled all the planning. Finished on schedule and beautifully built.

David P.

Old Basing, Hampshire

The wrap-around extension has given us the open-plan space we always dreamed of. Brilliant attention to detail and genuinely lovely people to have working on your house.

Emma T.

Hook, Hampshire

Where we work

Proudly serving Basingstoke & Hampshire

We build house extensions across Basingstoke and the surrounding towns and villages. Find your area below.

Questions

Frequently Asked Questions

Everything you need to know about extending your home in Basingstoke.

Extension costs in Basingstoke typically range from £30,000 for a modest single storey extension to £100,000+ for a large double storey build. The final figure depends on size, specification, ground conditions and finishes. We provide a free, transparent quote with fixed pricing so there are no surprises.

Ready to transform your home?

Book your free, no-obligation consultation with Basingstoke's design-led extension specialists.

Free quote

Let's talk about your extension

Tell us a little about your project and we'll arrange a free, no-obligation consultation at a time that suits you.

Emailhello@houseextensionshampshire.com
AreaBasingstoke, Hampshire
HoursMon-Fri 8-6 · Sat 9-1

No obligation. We'll never share your details.