Rear dormer loft in Wandsworth

Which postcode districts around Wandsworth do we cover for rear dormer work?

Every Wandsworth postcode district we draw in, the stock that dominates it and the authority that validates a rear dormer there. Wandsworth fees below are the statutory England rates for 2026, not rear dormer estimates.

How does a rear dormer differ street by street across Wandsworth?

Roof pitch, wall build-up and plot depth change every few Wandsworth streets, and each one changes what a rear dormer can achieve at that address.

• Roehampton (SW15) — rear dormer work in Roehampton means post-war estates, georgian villas. Roehampton is Modernist post-war estates, Georgian fragments. A dormer on a Georgian roof has to sit behind the parapet line to stand any chance of consent throughout SW15. Wandsworth Council decides the Roehampton application, and Alton Estate anchors the Roehampton location plan.
• Clapham Junction (SW11) — a rear dormer in Clapham Junction starts from victorian terraces, mansion blocks, and Clapham Junction reads as Victorian terraces, transport hub. Full-width rear dormers on Victorian terraces here are the default in SW11. Wandsworth Council assesses Clapham Junction rear dormers against its own Clapham Junction character guidance, and the location plan we draw for Clapham Junction references Clapham Junction station.
• Battersea (SW8, SW11) — rear dormer work in Battersea means victorian terraces, new-build apartments. Battersea is Victorian terraces, riverside regen at Power Station. Full-width rear dormers on Victorian terraces here are the default throughout SW8. Wandsworth Council decides the Battersea application, and Battersea Power Station anchors the Battersea location plan.
• Balham (SW12) — Victorian and Edwardian terraces defines Balham, where victorian and edwardian terraces set what a rear dormer can do. Full-width rear dormers on Victorian terraces here are the default across SW12. Any Balham rear dormer is validated by Wandsworth Council, with Balham High Road the usual Balham reference point on the site plan.
• Tooting (SW17) — Edwardian terraces, vibrant high street defines Tooting, where edwardian terraces set what a rear dormer can do. The deeper Edwardian rear slope takes a full-width dormer without breaching the 40 m³ or 50 m³ volume limits on most of these houses across SW17. Any Tooting rear dormer is validated by Wandsworth Council, with Tooting Market the usual Tooting reference point on the site plan.
• Wandsworth Common (SW17, SW18) — Victorian villas around the common defines Wandsworth Common, where victorian villas and terraces set what a rear dormer can do. Full-width rear dormers on Victorian terraces here are the default across SW17. Any Wandsworth Common rear dormer is validated by Wandsworth Council, with Wandsworth Common the usual Wandsworth Common reference point on the site plan.
• Earlsfield (SW18) — a rear dormer in Earlsfield starts from victorian terraces, and Earlsfield reads as Victorian terraced streets. Full-width rear dormers on Victorian terraces here are the default in SW18. Wandsworth Council assesses Earlsfield rear dormers against its own Earlsfield character guidance, and the location plan we draw for Earlsfield references Earlsfield station.

Does Wandsworth planning policy restrict a rear dormer?

How designation changes a Wandsworth rear dormer: Wandsworth Council maintains 45 conservation areas, including Tonsley, Magdalen Park, Nightingale Triangle. Inside any of them a Wandsworth rear dormer cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Tonsley sets the tone for Wandsworth casework.

Article 4 and your Wandsworth rear dormer: Article 4 for HMO conversions covering the whole borough. At a SW11 address that matters twice over, because Wandsworth Council applies the direction unevenly across Wandsworth — we read the Wandsworth policies map for the exact SW11 address before quoting rear dormers.

The building fabric around Wandsworth: Extensive Victorian terraced streets — the classic London side-return extension opportunity; Edwardian villas around the commons; 1930s semi-detached in Southfields. Family-oriented, high side-return extension and loft conversion rates; planning department experienced with Victorian terrace modifications. A rear dormer in Wandsworth is scoped against that stock first.

What happens if a Wandsworth property sits on a boundary?

• Richmond upon Thames — the Richmond upon Thames boundary runs against Wandsworth, so a rear dormer a street from Wandsworth is decided by Richmond Council instead. Richmond upon Thames runs 72 conservation areas across SW13 and its neighbours, which is why rear dormers priced for Wandsworth are re-checked against Richmond upon Thames policy whenever the Wandsworth address sits on that edge.
• Hammersmith and Fulham — the Hammersmith and Fulham boundary runs against Wandsworth, so a rear dormer a street from Wandsworth is decided by Hammersmith & Fulham Council instead. Hammersmith and Fulham runs 45 conservation areas across W6 and its neighbours, which is why rear dormers priced for Wandsworth are re-checked against Hammersmith and Fulham policy whenever the Wandsworth address sits on that edge.
• Westminster — the Westminster boundary runs against Wandsworth, so a rear dormer a street from Wandsworth is decided by Westminster City Council instead. Westminster runs 56 conservation areas across SW1 and its neighbours, which is why rear dormers priced for Wandsworth are re-checked against Westminster policy whenever the Wandsworth address sits on that edge.
• Lambeth — adjoining Wandsworth, with 64 conservation areas centred on SE1. A rear dormer on the far side of the Wandsworth line is determined by Lambeth Council, so the Wandsworth quote for rear dormers is checked against Lambeth guidance before it is issued.

Sources for this Wandsworth rear dormer page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.