Side Return Extensions
That narrow alley down the side of your terrace? We turn it into usable kitchen space.
All Well Property Services provides professional side return extensions across South East London. Prices range from £35,000to £55,000. Typical build time: 8–10 weeks. All projects include a fixed-price contract, single project manager, and full Building Control sign-off. Call 020 3920 9617 for a free consultation.
What We Offer
That narrow alley down the side of your terrace? We turn it into usable kitchen space. Side return extensions add width to your ground floor without touching the garden — ideal for Victorian and Edwardian terraces across South London.
- ✓Victorian and Edwardian terrace specialists
- ✓Side passage to kitchen-diner conversion
- ✓Structural steelwork and RSJs
- ✓Bifold and sliding door installation
- ✓Underfloor heating
- ✓Full electrical and plumbing fit-out
- ✓Building Control sign-off included
- ✓FENSA registered glazing
Typical Investment
8–10 weeks | Fixed-price contracts
Standard side return infill
Glazed roof, opening up to kitchen
£35,000 – £45,000
Side return with rear extension
Combined side + rear for maximum space
£45,000 – £65,000
Most clients with Victorian terraces typically invest between £38,000 and £50,000 to open up their side return into a bright kitchen-diner.
Fixed-price contracts | No hidden costs | 8–10 week typical build
What Affects the Cost?
- •Length of the side return passage
- •Glazing specification (Crittall-style vs standard)
- •Structural steelwork to open up the wall
- •Kitchen fit-out specification
- •Access and scaffolding requirements
Recent Side Return Extensions Projects
Side Return Extensions across South East London
What Our Customers Say
“All Well managed our project from start to finish. The fixed-price contract meant no surprises, and the result is stunning.”
Verified Customer
“Professional team, clean site, and they handled all the paperwork. Would recommend to anyone.”
Verified Customer
“Great communication throughout. They kept to the timeline and budget exactly as quoted.”
Verified Customer
Accredited & Certified
Frequently Asked Questions
- What is a side return extension?
- A side return extension fills in the narrow alleyway that runs along the side of most Victorian and Edwardian terraced houses. It widens your kitchen into an open-plan living space without reducing your garden.
- Do side return extensions need planning permission?
- Most side return extensions fall within permitted development rights, meaning no planning application is needed. We assess your property during the free consultation and confirm this before any work begins.
- How much does a side return extension cost?
- A standard side return infill typically costs £35,000-£45,000. Combined with a rear extension, expect £45,000-£65,000. We provide a fixed-price quote with no surprises.
Get a Free Side Return Extensions Quote
Free site visit. No-obligation quote. We respond within 24 hours — usually the same day.
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