House extension cost
in Sands End.
Sands End — the corner of SW6 bordered by the Thames, Wandsworth Bridge Road and Imperial Wharf. The housing is a mix of Victorian artisans' terraces and post-war infill, with newer riverside flats along Townmead Road.
What makes extension work in Sands End distinct.
Housing: Smaller two-storey Victorian terraces (often originally workers' cottages), some Edwardian semis and a scattering of 1980s townhouses.
Planning: Most of Sands End sits outside the conservation grid, so rear dormers often qualify for permitted development — but Article 4 directions apply on parts of Imperial Square.
Applications go to LB Hammersmith & Fulham. We submit on your behalf and handle party wall awards, build-over agreements and conservation officer correspondence end-to-end.
The five extension types — SW6 numbers.
All figures inclusive of design, planning, build, contingency and VAT. The Sands End multiplier (1.00×) reflects local labour, scaffolding logistics, conservation requirements and finish expectations.
The 2026 London Extension Cost Guide.
Borough-by-borough pricing, a full £200k cost breakdown, PD vs full planning explained, and the seven hidden costs to watch for in Sands End and beyond.
Send me the guide.
What Sands End homeowners ask us.
How much does a house extension cost in Sands End in 2026?
Typical 2026 Sands End ranges (inc. design, planning, build, contingency & VAT): side-return extensions £90k–£160k; single-storey rear £110k–£210k; wraparound £170k–£320k; double-storey rear £180k–£380k; basement £250k–£750k. The Sands End multiplier (1.00×) reflects local labour rates, scaffold logistics and finish expectations.
Do I need planning permission for an extension in Sands End?
Most of Sands End sits outside the conservation grid, so rear dormers often qualify for permitted development — but Article 4 directions apply on parts of Imperial Square. Outside conservation areas, single-storey rear extensions up to 3m (terrace/semi) or 4m (detached) usually qualify for permitted development. Side-returns, wraparounds, double-storey extensions and anything in a conservation area need full planning. Applications go to LB Hammersmith & Fulham.
What extension type works best for Sands End houses?
Smaller two-storey Victorian terraces (often originally workers' cottages), some Edwardian semis and a scattering of 1980s townhouses. On this housing stock, the most common 2VP extension is a single-storey rear or wraparound — adding 20–35 m² of open-plan kitchen-diner. Double-storey extensions become viable on properties with rear gardens deep enough to absorb the additional volume without overshadowing.
How long does an extension take in Sands End?
Allow 8–12 weeks for design and planning (longer in conservation areas), then 16–22 weeks on site for a single-storey, 22–30 weeks for a wraparound or double-storey, and 28–40 weeks for a basement. LB Hammersmith & Fulham processes planning applications in approximately 8–13 weeks depending on backlog.
What hidden costs catch Sands End homeowners out on extensions?
In SW6 the top items are: party wall awards (£1,000–£3,000 per neighbour — common on terraced streets), build-over agreements with Thames Water (£300–£1,500 where drains run beneath the proposed extension), conservation officer consultations, structural engineer fees, drainage and asbestos surveys, and VAT at 20% on top of the base build cost. All of these are itemised in our fixed-price quote.
Does 2VP work on Sands End extensions?
Yes — Sands End is within our core London catchment. Our studio is at 20 Dawes Road in Fulham, 1.0km from Sands End. We've delivered extensions across the SW6 postcode and our subcontractor network covers Hammersmith & Fulham. Free site visit, fixed-price quote, 10-year HomePro guarantee on the finished work.
Extension pricing for Sands End’s neighbours.
Twenty minutes on site in Sands End.
On us.
Nick Elias RIBA and Vladimir will visit your Sands End home, walk the site, check planning constraints, advise on PD vs full planning, and give you a realistic budget and programme — even if an extension isn’t the right move.
One number. Sixty seconds. No callback.
Price your Sands End extension using the same 2026 rate card we quote real clients with.
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