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REAR EXTENSION COMPANY in
WEST LONDON
Explore the benefits of adding a rear home extension to your London property.
1
What Is a Rear Extension?
A rear extension projects from the back of the property into the rear garden, increasing the ground floor footprint. Single-storey rear extensions are the most common, adding depth to the kitchen or living area and typically incorporating glazed rear elements — bifold doors, sliding doors or a full-width rooflight — to bring natural light into the new space.
2
Rear Extensions on London's Period Properties
Victorian terraces and Edwardian semis — the dominant property types across Chiswick, Hammersmith, Acton, Ealing and large parts of Camden and Belsize Park — are well suited to rear extensions. Most of these properties were built with relatively shallow original rear footprints, which means even a modest extension meaningfully changes the internal layout.
3
Permitted Development for Rear Extensions
Most single-storey rear extensions on houses in London fall within permitted development, meaning no planning application is required. The permitted development limits are specific: detached houses can extend up to 8 metres from the original rear wall; terraces and semis can extend up to 6 metres. Extensions between 4 and 8 metres on detached houses and between 4 and 6 metres on terraces and semis require prior approval under the Neighbour Consultation Scheme — a lighter-touch process than full planning.
4
What Does a Rear Extension Cost in London?
Single-storey rear extensions in London typically range from £35,000 to £70,000 depending on the size of the extension, the specification of glazing and finishes, and the structural complexity of the existing rear wall. Larger extensions with high-specification bifold doors, roof lanterns and bespoke kitchens sit higher.
TYPES OF LONDON HOME EXTENSIONS
Rear Extension
A rear extension projects from the back of the property into the rear garden, increasing the ground floor footprintSingle-storey rear extensions are the most common
Side Return Extension
A side return extension fills in the narrow gap that runs alongside the back half of a Victorian or Edwardian terrace typically between one and two metres wide.
Wraparound Extension
A wraparound extension fills in the side return and extends the rear of the property simultaneously, creating an L-shaped addition that wraps around the corner of the original structure.
HOW IT WORKS...
STEP 1 - FREE SITE VISIT
We come to you, assess your space, listen to your vision and provide honest, practical advice - completely free with no obligation whatsover.
STEP 2 - QUOTE
We provide a detailed, itemised quote with no hidden costs. what we quote is exactly what you pay - we pride ourselves on transparency. No surprises.
STEP 3 - WE BUILD. YOU RELAX
Our team is vastly experienced ensuring the whole project is streamlined - we don't leave until the job is done to its highest standard & you are completely satisfied.
GET YOUR FREE QUOTE & SITE SURVEY BY FILLING OUT THE FORM BELOW
Work time:
Mon-Fr: 8.00 am – 5.00 pm
Sat: 8.00 am – 4.00 Pm
Contact:
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