Design & build · Groundworks · Drainage · Structural engineering across South West London & Surrey

AMTA ARGC · Side Return Extensions

Side Return Extensions in London

Turn the narrow side passage of a terraced house into a wide, bright kitchen.

Finished kitchen extension with green shaker units, quartz worktops and marble-effect floor tiles

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Finished kitchen extension with green shaker units, quartz worktops and marble-effect floor tiles

Overview

Side Return Extensions: designed, engineered and built in-house

A side return extension fills the narrow passage beside the back of a Victorian or Edwardian terrace. It is one of the most effective ways to widen a galley kitchen, and we design and build each side return extension with our own engineers and site team.

We cover 9 councils across South West London and Surrey, and every project is run by one team from survey to sign-off. This service is part of our house extensions work, and it is often combined with wraparound extensions.

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What is included

What is included in our side return extensions service

01

Party wall planning

Most side returns sit on the boundary, so we plan party wall notices early.

02

Steel design

Beams and posts to remove the side wall safely.

03

Foundations and drainage

New foundations and rerouted drains along the boundary.

04

Roof and glazing

Glazed or solid roof with roof lights to bring light into the middle of the house.

How we work

From first survey to building control sign-off

One team, one point of contact and one programme, from the first site visit to the completion certificate.

01

Survey

We visit, measure up and agree the brief, budget and timescales.

02

Design

Drawings and structural calculations by our own engineers.

03

Planning & building control

Planning or permitted development, building regulations and party wall help.

04

Build

Our site team builds, with one contact throughout.

05

Sign-off

Final inspections, completion certificate and handover.

Recent projects

Recent projects

Costs and timescales

Side Return Extensions costs and timescales

Every project is priced after a survey, because ground conditions, structure and finishes vary from house to house. We give you an itemised quote and a written programme, so you know what you are paying for and when each stage happens.

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What affects the price

Areas we cover

Areas we cover for side return extensions

We work across nine councils in South West London and Surrey. Choose your area to see local projects, planning notes and how we work there.

Richmond, Twickenham, Teddington, Barnes, Kew

Kingston, Surbiton, New Malden, Tolworth

Wimbledon, Merton Park, Raynes Park, Morden, Mitcham

Tooting, Balham, Wandsworth, Putney, Earlsfield

Epsom, Ewell, Stoneleigh

Hounslow, Chiswick, Isleworth, Brentford

Ealing, Acton, Southall, Hanwell

Dulwich, Peckham, Camberwell, Bermondsey

Croydon, Purley, Coulsdon, South Croydon

Related services

Related services

FAQs

Side Return Extensions FAQs

Straight answers to common questions. See all our FAQs or ask an engineer.

Almost always, because a side return usually builds on or near the boundary. We help you serve notices in good time.

Yes. That is a wraparound extension, which creates an L-shaped space.

It depends on size and approvals. We give you a written programme with your quote covering design, approvals and each build stage.

Richmond, Kingston, Merton, Wandsworth, Epsom & Ewell, Hounslow, Ealing, Southwark and Croydon.

Free, no-obligation quote

Get a free quote for side return extensions

Send a few details and one of our engineers will call you back to arrange a survey. Prefer to talk now? Call 020 3857 3805.