Bright open-plan kitchen extension with island, rooflight and garden doors, by Trovix Group in London

Kitchen Extensions in London

Create more space, light and flow for everyday living, delivered by one accountable team.

Isleworth, West London

A kitchen opened into a larger ground floor

The client had already secured the architectural design and planning permission before appointing Trovix.

Trovix delivered the side extension, double-storey rear extension and structural works, including wall removals and steel installation to open the ground floor.

View the Isleworth project
Original kitchen before the Isleworth renovation and extension works
Kitchen before works
Completed Isleworth kitchen after the renovation and extension works
Kitchen after works

Choose the right footprint for your kitchen

The right layout depends on your home, the space you need and how you want to connect with the garden.

1

Rear extension

Extend into the garden to create a kitchen-diner with a direct connection to the outside.

Often suits: Homes with useful rear garden depth.

Explore rear extensions

2

Side-return extension

Use the narrow space beside a rear outrigger to widen the kitchen without taking the full garden depth.

Often suits: Many Victorian and Edwardian terraces with a usable side return.

Explore side-return extensions

3

Wraparound extension

Combine rear and side space where the layout needs greater width as well as extra depth.

Often suits: Homes with both a side return and sufficient rear space.

Explore wraparound extensions
Finished wall panelling and lighting detail in the completed Isleworth interior

Plan the room first

Layout, daylight and everyday flow

Start with circulation

Place the island, dining table, appliance run and routes to the garden before fixing the shell around them.

Bring light into the deeper plan

Rooflights can brighten the centre of the room, while garden doors connect the kitchen to the outside. Glazing is considered with orientation and ventilation.

Coordinate adjoining rooms

Opening the old kitchen into the extension can affect a hallway, dining room or downstairs WC, so those changes belong in the early layout.

Set services against the chosen kitchen

Lighting, sockets, extraction, water, waste and heating positions are agreed before first fix closes the structure.

Kitchen extension costs in London

The construction range follows the extension footprint. These are indicative project bands including VAT; size, structure, access, glazing and finish affect your own figure.

Rear extension£60,000 – £120,000+
Side return extension£55,000 – £100,000+
Wraparound extension£80,000 – £160,000+
Double-storey extension£100,000 – £190,000+

Kitchen units, worktops and appliances are excluded unless specifically agreed for your project. Kitchen installation can be included by prior agreement.

Roof structure and structural work in progress during the Isleworth extension

Coordinated delivery

Supplier decisions timed with the build

One accountable team from start to finish. Trovix manages the project, coordinates the professional team and specialist trades, and remains your single point of responsibility throughout the build. Kitchen decisions are sequenced alongside the construction so services and supplier milestones do not become late surprises.

  1. 01

    Agree the working kitchen layout

    Set the appliance, sink, island, lighting and extraction positions before first fix.

  2. 02

    Coordinate the supplier survey

    Confirm when the supplier needs to measure and what level of finish or dimensional certainty they require.

  3. 03

    Complete first fix and finishes

    Coordinate services, floor build-up, plastering and decoration with the agreed installation sequence.

  4. 04

    Template worktops separately

    Where required, worktop templating follows fitted base units and established final levels.

Living through a kitchen extension

Many clients remain at home, but the kitchen is normally unavailable for part of the programme. We plan that disruption before work starts.

  • Agree protected access routes for occupied areas.
  • Plan a temporary kitchen elsewhere where practical.
  • Set delivery, waste and site-access arrangements early.
  • Receive weekly updates from your dedicated project manager.

Discuss your kitchen extension

We respond within 24 hours.

Kitchen extension interior with green cabinets, a central island, rooflights and sliding garden doors

What happens next

  1. 01We review your property, goals and current project stage.
  2. 02A short call clarifies the layout, budget and key questions.
  3. 03If the project is a good fit, we agree the most useful next step.

Step 1 of 2 · Contact details

Common Questions

Kitchen extension questions, answered