Wrap-around extension in Wandsworth

Which postcode districts around Wandsworth do we cover for wrap around extension work?

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

How does a wrap around extension 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 wrap around extension can achieve at that address.

• Tooting (SW17) — Edwardian terraces, vibrant high street defines Tooting, where edwardian terraces set what a wrap around extension can do. Edwardian plots here are wider across SW17. Any Tooting wrap around extension is validated by Wandsworth Council, with Tooting Market the usual Tooting reference point on the site plan.
• Wandsworth Common (SW17, SW18) — wrap around extension work in Wandsworth Common means victorian villas and terraces. Wandsworth Common is Victorian villas around the common. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage throughout SW17. Wandsworth Council decides the Wandsworth Common application, and Wandsworth Common anchors the Wandsworth Common location plan.
• Earlsfield (SW18) — Victorian terraced streets defines Earlsfield, where victorian terraces set what a wrap around extension can do. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage across SW18. Any Earlsfield wrap around extension is validated by Wandsworth Council, with Earlsfield station the usual Earlsfield reference point on the site plan.
• Putney (SW15) — Edwardian terraces, riverside defines Putney, where edwardian terraces, victorian villas, mansion blocks set what a wrap around extension can do. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage across SW15. Any Putney wrap around extension is validated by Wandsworth Council, with Putney Bridge the usual Putney reference point on the site plan.
• Southfields (SW18) — wrap around extension work in Southfields means 1930s semi-detached, edwardian terraces. Southfields is 1930s semi-detached, grid plan. Edwardian plots here are wider throughout SW18. Wandsworth Council decides the Southfields application, and Southfields station anchors the Southfields location plan.
• Tonsleys (SW18) — Victorian conservation area defines Tonsleys, where victorian terraces set what a wrap around extension can do. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage across SW18. Any Tonsleys wrap around extension is validated by Wandsworth Council, with Tonsley Hill the usual Tonsleys reference point on the site plan.
• Nightingale Triangle (SW12) — a wrap around extension in Nightingale Triangle starts from edwardian terraces and villas, and Nightingale Triangle reads as Edwardian conservation area. Edwardian plots here are wider in SW12. Wandsworth Council assesses Nightingale Triangle wrap around extensions against its own Nightingale Triangle character guidance, and the location plan we draw for Nightingale Triangle references Nightingale Lane.

How do conservation areas and Article 4 affect a wrap around extension in Wandsworth?

Conservation areas covering Wandsworth: Wandsworth Council runs 45, and Magdalen Park, Nightingale Triangle, Wandsworth Common are the ones Wandsworth owners meet most. A wrap around extension inside a Wandsworth conservation area loses permitted development, so the Wandsworth submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Magdalen Park a wrap around extension is judged on the street elevation first.

Article 4 and your Wandsworth wrap around extension: 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 wrap around extensions.

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 wrap around extension in Wandsworth is scoped against that stock first.

What happens if a Wandsworth property sits on a boundary?

• Merton — cross the Wandsworth boundary and Merton Council takes the wrap around extension instead, applying 28 conservation areas of its own around SW16. We re-price wrap around extensions at the Wandsworth edge because Merton policy and Wandsworth policy rarely align on wrap around extension depth.
• Kingston upon Thames — the Kingston upon Thames boundary runs against Wandsworth, so a wrap around extension a street from Wandsworth is decided by Kingston Council instead. Kingston upon Thames runs 22 conservation areas across KT1 and its neighbours, which is why wrap around extensions priced for Wandsworth are re-checked against Kingston upon Thames policy whenever the Wandsworth address sits on that edge.
• Richmond upon Thames — adjoining Wandsworth, with 72 conservation areas centred on SW13. A wrap around extension on the far side of the Wandsworth line is determined by Richmond Council, so the Wandsworth quote for wrap around extensions is checked against Richmond upon Thames guidance before it is issued.
• Hammersmith and Fulham — adjoining Wandsworth, with 45 conservation areas centred on W6. A wrap around extension on the far side of the Wandsworth line is determined by Hammersmith & Fulham Council, so the Wandsworth quote for wrap around extensions is checked against Hammersmith and Fulham guidance before it is issued.

Sources for this Wandsworth wrap around extension 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.