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House Extensions

A well-designed extension transforms how you live — a light-filled kitchen-diner that opens onto the garden, an extra bedroom, or a whole new ground floor. Luca Extension designs and builds single-storey, double-storey, side-return and wrap-around extensions across Twickenham, Richmond and West London, handling everything from drawings and planning to the final finish.

Why homeowners choose us

Extensions built around your life

Design-led

We design the space around natural light, flow and how you actually use your home.

One trusted team

Groundworks, steels, glazing, kitchens and finishes — all managed in-house, in the right order.

Planning handled

We manage planning applications, permitted development and building control for you.

Fixed pricing

A clear written quote agreed up front, with no surprises along the way.

Your options

Types of extension we build

Single-storey rear

The classic open-plan kitchen-diner with bi-fold doors and roof lanterns, opening your home to the garden.

From £45,000
Side return

Reclaiming the narrow alley beside period terraces to create a wider, brighter kitchen.

From £40,000
Double-storey

Extra living space downstairs and a new bedroom or bathroom above — the best value per square metre.

From £75,000
Wrap-around

Combining rear and side extensions for a dramatic, light-filled open-plan living space.

From £70,000
Recent extensions

Kitchens and extensions we have completed

15+
Years of experience
250+
Projects completed
10–14 wks
Typical build time
120+
5-star reviews
Plan with confidence

Two free tools to get you started

Get an instant idea of cost, and check whether you will need planning permission.

Try the cost calculatorCheck planning permission

Ready to extend your home?

Book a free, no-obligation consultation and we will talk through what is possible for your space.

Get your free quote