Loft conversion cost
in Wandsworth.
Wandsworth — SW18 — south-west of Fulham across the river. The town centre and the streets around Wandsworth Common offer a good mix of Victorian terraces, Edwardian semis and 1930s housing.
What makes loft work in Wandsworth distinct.
Housing: Mixed — Victorian terraces near the common, Edwardian semis along West Hill, 1930s housing on the southern edges.
Planning: Wandsworth Common, Magdalen Park and Tonsleys conservation areas cover specific pockets. Most central SW18 retains PD rights.
Applications go to LB Wandsworth. We submit on your behalf and handle conservation officer correspondence end-to-end.
The five loft types — SW18 numbers.
All figures inclusive of design, planning, build, contingency and VAT. The Wandsworth multiplier (0.95×) reflects local labour, scaffolding logistics, conservation requirements and finish expectations.
The 2026 London Loft Cost Guide.
Borough-by-borough pricing, a full cost breakdown, PD vs full planning explained, and the seven hidden costs to watch for in Wandsworth and beyond.
Send me the guide.
What Wandsworth homeowners ask us.
Do I need planning permission for a loft in Wandsworth?
Wandsworth Common, Magdalen Park and Tonsleys conservation areas cover specific pockets. Most central SW18 retains PD rights. Outside conservation areas, most rear-dormer conversions in Wandsworth qualify for permitted development (PD) within the 40m³ (terrace) or 50m³ (semi/detached) volume limits. Mansards always need full planning. We check your specific address before quoting and submit the application on your behalf.
Is a hip-to-gable conversion worth it in Wandsworth?
On the Edwardian semis along West Hill and Magdalen Road — yes, very often. Converting the hip into a full vertical gable adds 20–30% more floor area than a rear dormer alone, and PD rights usually cover it. Hip-to-gable + rear dormer is one of the most common combinations we build in SW18.
How long does a Wandsworth loft conversion take?
Typical timeline: 6–10 weeks for design and planning (longer in conservation areas like much of Wandsworth), then 8–14 weeks on site for a standard dormer, 12–18 weeks for an L-shape or hip-to-gable, and 14–20 weeks for a mansard. LB Wandsworth processes PD-route Lawful Development Certificates in approximately 8 weeks.
What does a loft conversion add to Wandsworth property values?
In SW18, a well-executed loft conversion typically adds 15–25% to property value — often more in prime postcodes. The ROI is strongest when you add a double bedroom plus en-suite, which is the standard L-shape dormer configuration. Property uplift on a £43k–£209k build commonly exceeds the build cost by 30–60%.
Does 2VP work on Wandsworth loft conversions?
Yes — Wandsworth is within our core London catchment. Our studio is at 20 Dawes Road in Fulham, 3.5km from Wandsworth. We've delivered loft conversions across the SW18 postcode and our subcontractor network covers Wandsworth. Free site visit, fixed-price quote, 10-year HomePro guarantee on the finished work.
Twenty minutes on site in Wandsworth.
On us.
Nick Elias RIBA and Vladimir will visit your Wandsworth home, walk the loft, check head height, advise on PD vs planning, and give you a realistic budget and programme — even if a loft isn’t right for your house.
One number. Sixty seconds. No callback.
Price your Wandsworth loft conversion using the same 2026 rate card we quote real clients with.
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