Side Return Extensions

Side Return Extensions London

Atomic Build offers a wide range of home design and building services to Greater London residents, including renovations and extensions. We specialise in side return extensions and other creative solutions that help people to enjoy their existing home.

A side return extension involves filling in the passage that exists between the rear and side of your property, with single storey and double storey options both available. While not all properties have this passage, it often exists in London homes as a way to separate two neighbouring houses.

There are many ways to extend and transform a property, from adding a second storey through to extending your garage or removing external walls. While rear or L shaped extensions can add valuable floor and living space, they often result in the loss of garden space. A side return extension can be a fantastic solution for some properties, with our talented building company able to make clever use of space you don’t even use. 

Looking for side return extensions company near me?

Features of a side return extension

A side return extension is an infill of an unused passage, with this space typically not used for anything other than occasional access. While Greater London has a number of amazing homes, period buildings are often unable to meet the needs of modern homeowners. At Atomic Build, our builders help to address this imbalance by adding innovative modern features to existing buildings.

Our house side extensions can be completely customised to meet your needs. We offer a complete design and building package that also includes consultation and planning approval. Along with the shell itself, we can add multiple building features to expand your space and upgrade your lifestyle. While each home is unique, the following elements are common:

  • Glazing in rooflights and doors
  • Interior design and finishes
  • Kitchens and plumbing
  • WCs or utility rooms
  • Heating and electrical
  • Underfloor heating
  • Landscaping
  • Associated internal works

The Atomic Build process

From the early days of consultation and design through to the extension itself, our comprehensive and integrated process is broken down into separate and well-defined stages.

First, we carry out a free site meeting, followed by a quote, budget, and time frame estimate. Once we understand your needs, we will conduct a detailed feasibility study complete with visualisation and calculations. During the contract stage, we will define all terms and assign our team across key areas. Once building commences, a quality control system is implemented, with an insurance backed guarantee delivered upon completion.

Atomic Build services in these locations

Atomic Build offers large and small side return extensions across Greater London, including but not limited to the following areas: Richmond, Twickenham, Greenford, Harrow, Gerrards Cross, Hammersmith, Uxbridge, Iver, Watford, Pinner, Stanmore, Ruislip, Brentford, and Teddington.

If you’re looking for outstanding home design and integrated building services, please contact our friendly team today.

Atomic Build is proud to be a member of the Federation of Master Builders (FMB).
9.77 / 10 - Average rating over 93 reviews in the last 12 months on Checkatrade
Check out our customer reviews on Checkatrade
The whole team have been great with our loft conversion. The first phase has been delivered on time and to a great standard. The team are clean and considerate. We are now looking forward to the next stages of the build
Dipan Bhatt
Dipan Bhatt
13:23 04 Dec 20
Very professional and competent builder. Very happy with my new loft. Would recommend for residential builds
18:18 02 Feb 20


– No obligation meeting at your site to establish project scope
– Gap analysis on existing information available
– Project quote and timeframes


Free site visit to one of our constructions sites, demonstrating our capabilities in managing construction activities.

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