Wandsworth · Battersea · Balham · Tooting · Putney · Earlsfield
Dormer, L-shaped, hip-to-gable and mansard loft conversions for Wandsworth's Victorian terraces and interwar semis. We check conservation area and Article 4 rules and handle party wall and Building Regulations.
A loft conversion in Wandsworth typically costs £45,000–£80,000 for a dormer in 2026, and hip-to-gable on interwar semis runs £55,000–£95,000. Outside conservation areas and Article 4 areas, most are Permitted Development. Inside them you need planning permission.
Last updated 3 October 2026
Wandsworth's streets split into two main loft markets. Victorian and Edwardian terraces dominate Battersea, Balham, Tooting and Clapham South and suit rear and L-shaped dormers. Interwar semis around Earlsfield, Putney and Southfields are classic hip-to-gable candidates.
A large share of the borough also sits in conservation areas, and Article 4 Directions remove Permitted Development in parts of it. Before any design work we check your address against the council's maps and confirm whether you need a planning application or can proceed under Permitted Development.
In a conservation area or Article 4 area, dormers and roof alterations that are normally Permitted Development need planning permission. Areas to check include:
Our Wandsworth loft and extension guide covers the borough in more detail.
On the Victorian terraces of Battersea, Balham and Tooting, a rear dormer is the standard route, with an L-shaped dormer where there is a rear outrigger. If you are in a conservation area keep the work to the rear slope and plan for an application.
On interwar semis in Earlsfield, Putney and Southfields, hip-to-gable with a rear dormer usually adds the most space, and outside conservation areas it is often Permitted Development.
Indicative 2026 ranges for Wandsworth houses. A free survey gives you an accurate, itemised figure for your roof.
Victorian terraces in Battersea, Balham and Tooting mostly suit dormers. Interwar semis in Earlsfield, Putney and Southfields are the main hip-to-gable market.
Want a personalised range first? Try our free Loft Conversion Cost Calculator.
We measure your roof void and check your address against Wandsworth's conservation area and Article 4 maps before any design work.
Drawings and structural calculations, then a Certificate of Lawfulness, a householder application to Wandsworth Council or straight to Building Regulations.
Notices served on adjoining owners, two months ahead for steelwork and one month for boundary gable walls, with Building Control inspections throughout.
Hip-to-gable with dormer typically takes 8–12 weeks on site under a written JCT contract with staged payments, finishing with a snagging walkthrough.
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It depends on your address. Outside conservation areas and Article 4 areas, most rear dormers, rooflight conversions and many hip-to-gables on houses are Permitted Development within 40 m³ (terraces) or 50 m³ (semi-detached). Large parts of Battersea, Balham, Tooting and Clapham South sit in conservation areas, where you need a planning application. Check the council's conservation and Article 4 maps first.
A hip-to-gable conversion combined with a rear dormer. It replaces the sloping side roof with a vertical gable wall and adds a dormer, which turns the wedge-shaped loft into full-height space. It is often Permitted Development outside conservation areas, within the 50 m³ limit for semis.
A rear dormer on a Victorian terrace typically costs £45,000–£70,000 in 2026, and an L-shaped dormer £60,000–£80,000 where there is a rear outrigger. A hip-to-gable with dormer on an interwar semi in Earlsfield or Southfields runs £55,000–£95,000, with the spread driven by the number of rooms and the specification.
Yes. Conservation area status applies whether or not a house is listed, and it removes Permitted Development rights for roof alterations. Article 4 Directions can do the same outside conservation areas. Check your address on the council's planning maps before you commission drawings.
Steel beams that bear on the party wall need a notice at least two months before structural work starts, and a hip-to-gable wall built at the boundary needs a one-month notice. Terraced houses need notices for both neighbours. We serve them as part of the project.
Cost figures are indicative 2026 London ranges for planning purposes, build cost only and excluding VAT, professional fees and fittings. They are not a quotation. Planning and Permitted Development rules depend on your specific address, so always confirm with your local council or a Certificate of Lawfulness.
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