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Side Return Extensions in London
The narrow alley beside the back of a Victorian terrace is wasted space. A side return extension builds into it and opens the kitchen into one bright, wide room, usually with a glazed roof.
Since 2013 · Fully insured · CSCS-carded, SMSTS-supervised · Free site visit and itemised written quote
What's included
Drawings, structural calculations, Building Control and Party Wall
Foundations, drainage alterations and steelwork
Glazed roof or rooflights
Bi-fold or sliding doors
Underfloor heating, electrics, plastering and flooring
Price and time on site
From £40,000 incl. VAT, typically 10–14 weeks on site.
Questions we're often asked
Do I need planning permission?
Many side returns fall under permitted development. Conservation areas and flats usually need planning.
Can I combine a side return and rear extension?
Yes. That makes a wrap-around extension, priced from your survey.
Other house extensions services
Wrap-around extensions · Double storey extensions · Kitchen extensions · All house extensions
Often done together
Wall removal & RSJ · Kitchen installation · Underfloor heating
Back to all domestic services.
Get a free quote
Send us your postcode and a few photos, or call 020 7476 2770 / 07903 854379. We'll arrange a free site visit and send an itemised written quotation. Get a free quote
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