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Loft conversion cost London/Richmond
TW9 · Richmond upon Thames · 2026 prices

Loft conversion cost
in Richmond.

Richmond — TW9/TW10 — one of London's most prestigious outer postcodes, with Richmond Park, the Thames and a genuine historic town centre. Property values rival inner-west London on prime streets.

£50k–£246k
typical Richmond range
TW9
Richmond upon Thames
8.0 km
from our Fulham studio
10-year
HomePro guarantee
Richmond housing stock & planning

What makes loft work in Richmond distinct.

Housing: Georgian and Victorian houses on Richmond Hill and around the green, Edwardian terraces and semis on the slopes below.

Planning: Richmond Hill, Richmond Green and Richmond Town conservation areas cover most of central Richmond. Many properties are listed.

Applications go to LB Richmond upon Thames. We submit on your behalf and handle conservation officer correspondence end-to-end.

Streets we work in Richmond
Richmond HillThe VineyardRichmond GreenFriars Stile RoadHam Common
Loft prices for Richmond, by type

The five loft types — TW9 numbers.

All figures inclusive of design, planning, build, contingency and VAT. The Richmond multiplier (1.12×) reflects local labour, scaffolding logistics, conservation requirements and finish expectations.

Velux / rooflight only
Richmond typical
£50k£84k
Roof stays as-is. Cheapest route, limited headroom, almost always PD.
Rear dormer
Richmond typical
£84k£134k
The London classic. Full standing height across most of the floor.
L-shape dormer
Richmond typical
£106k£168k
Dormer + side return at loft level. Master + en-suite typical.
Hip-to-gable + rear dormer
Richmond typical
£123k£190k
Semi-detached / end-of-terrace. Maximum floor area gain.
Mansard
Richmond typical
£146k£246k
Rear roof replaced. Premium choice for period houses. Full planning.
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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 Richmond and beyond.

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Richmond loft FAQ

What Richmond homeowners ask us.

Do I need planning permission for a loft in Richmond?

Richmond Hill, Richmond Green and Richmond Town conservation areas cover most of central Richmond. Many properties are listed. Outside conservation areas, most rear-dormer conversions in Richmond 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.

What's a typical Richmond loft conversion budget?

£130–£200k all-in for a standard L-shape dormer on an Edwardian terrace, with conservation-area design care. Larger projects on the hill or near the green frequently run £200–£320k for mansards on listed buildings, including listed-building consent fees and museum-grade detailing.

How long does a Richmond loft conversion take?

Typical timeline: 6–10 weeks for design and planning (longer in conservation areas like much of Richmond), 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 Richmond upon Thames processes PD-route Lawful Development Certificates in approximately 8 weeks.

What does a loft conversion add to Richmond property values?

In TW9, 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 £50k–£246k build commonly exceeds the build cost by 30–60%.

Does 2VP work on Richmond loft conversions?

Yes — Richmond is within our core London catchment. Our studio is at 20 Dawes Road in Fulham, 8.0km from Richmond. We've delivered loft conversions across the TW9 postcode and our subcontractor network covers Richmond upon Thames. Free site visit, fixed-price quote, 10-year HomePro guarantee on the finished work.

Nicholas Elias RIBA
Vladimir Castravet
Free site visit · Richmond

Twenty minutes on site in Richmond.
On us.

Nick Elias RIBA and Vladimir will visit your Richmond 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 Richmond loft conversion using the same 2026 rate card we quote real clients with.

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