Wrap-around extension in Southwark

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

Every Southwark postcode district we draw in, the stock that dominates it and the authority that validates a wrap around extension there. Southwark 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 Southwark?

Roof pitch, wall build-up and plot depth change every few Southwark streets, and each one changes what a wrap around extension can achieve at that address.

• Camberwell (SE5) — wrap around extension work in Camberwell means georgian villas, victorian terraces. Camberwell is Georgian villas, Victorian terraces. Georgian rear elevations here are usually the listed or locally listed face of the building throughout SE5. Southwark Council decides the Camberwell application, and Camberwell Green anchors the Camberwell location plan.
• Peckham (SE15) — Victorian terraces, creative renewal defines Peckham, where victorian terraces, post-war estates 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 SE15. Any Peckham wrap around extension is validated by Southwark Council, with Peckham Rye the usual Peckham reference point on the site plan.
• Dulwich Village (SE21) — a wrap around extension in Dulwich Village starts from georgian villas, edwardian villas (dulwich estate), and Dulwich Village reads as Georgian and Edwardian villas, Estate-managed. Georgian rear elevations here are usually the listed or locally listed face of the building in SE21. Southwark Council assesses Dulwich Village wrap around extensions against its own Dulwich Village character guidance, and the location plan we draw for Dulwich Village references Dulwich Picture Gallery.
• East Dulwich (SE22) — a wrap around extension in East Dulwich starts from victorian and edwardian terraces, and East Dulwich reads as Victorian and Edwardian terraces. 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 in SE22. Southwark Council assesses East Dulwich wrap around extensions against its own East Dulwich character guidance, and the location plan we draw for East Dulwich references Lordship Lane.
• Rotherhithe (SE16) — warehouse conversions, riverside defines Rotherhithe, where warehouse conversions, post-war estates, new-build set what a wrap around extension can do. Post-war houses on these estates often sit under an estate management scheme across SE16. Any Rotherhithe wrap around extension is validated by Southwark Council, with Surrey Quays the usual Rotherhithe reference point on the site plan.
• Elephant and Castle (SE1, SE17) — wrap around extension work in Elephant and Castle means post-war estates, new-build towers. Elephant and Castle is regenerated quarter, modernist origins. Post-war houses on these estates often sit under an estate management scheme throughout SE1. Southwark Council decides the Elephant and Castle application, and Elephant and Castle station anchors the Elephant and Castle location plan.
• Nunhead (SE15) — Victorian terraces around the cemetery defines Nunhead, 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 SE15. Any Nunhead wrap around extension is validated by Southwark Council, with Nunhead Cemetery the usual Nunhead reference point on the site plan.

Does Southwark planning policy restrict a wrap around extension?

How designation changes a Southwark wrap around extension: Southwark Council maintains 43 conservation areas, including Dulwich Village, Peckham Rye, Borough. Inside any of them a Southwark wrap around extension 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. Peckham Rye sets the tone for Southwark casework.

What Article 4 removes near Southwark: Article 4 for HMOs borough-wide; additional Article 4 for office-to-residential in Bermondsey and Elephant & Castle. Before pricing a wrap around extension we check whether the SE1 address is inside the mapped area, because Southwark Council draws the Southwark boundary street by street rather than across the whole of Southwark.

What Southwark is built from: Georgian and Regency in Bermondsey and Borough; Victorian terraces in Camberwell and Peckham; Dulwich Estate controlled housing; riverside new-build. Dulwich Estate private planning scheme affects much of SE21 and SE22; Southwark planning for rest of borough; strong heritage context. That mix decides the wrap around extension route in Southwark more than the postcode does.

What happens if a Southwark property sits on a boundary?

• Bromley — cross the Southwark boundary and Bromley Council takes the wrap around extension instead, applying 48 conservation areas of its own around BR1. We re-price wrap around extensions at the Southwark edge because Bromley policy and Southwark policy rarely align on wrap around extension depth.
• Tower Hamlets — adjoining Southwark, with 58 conservation areas centred on E1. A wrap around extension on the far side of the Southwark line is determined by Tower Hamlets Council, so the Southwark quote for wrap around extensions is checked against Tower Hamlets guidance before it is issued.
• City of London — the City of London boundary runs against Southwark, so a wrap around extension a street from Southwark is decided by City of London Corporation instead. City of London runs 27 conservation areas across EC1 and its neighbours, which is why wrap around extensions priced for Southwark are re-checked against City of London policy whenever the Southwark address sits on that edge.
• Lambeth — the Lambeth boundary runs against Southwark, so a wrap around extension a street from Southwark is decided by Lambeth Council instead. Lambeth runs 64 conservation areas across SE1 and its neighbours, which is why wrap around extensions priced for Southwark are re-checked against Lambeth policy whenever the Southwark address sits on that edge.

Sources for this Southwark 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.