Wrap-around extension in Lambeth

Which Lambeth postcodes does this wrap around extension service cover?

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

What changes about a wrap around extension in each part of Lambeth?

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

• Brixton (SW2, SW9) — a wrap around extension in Brixton starts from victorian terraces, post-war estates, and Brixton reads as Victorian terraces, vibrant centre. 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 SW2. Lambeth Council assesses Brixton wrap around extensions against its own Brixton character guidance, and the location plan we draw for Brixton references Brixton Market.
• Herne Hill (SE24) — wrap around extension work in Herne Hill means victorian villas, edwardian terraces. Herne Hill is Victorian villas around Brockwell Park. 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 SE24. Lambeth Council decides the Herne Hill application, and Brockwell Park anchors the Herne Hill location plan.
• Kennington (SE11) — Georgian terraces, Regency squares defines Kennington, where georgian terraces, post-war estates set what a wrap around extension can do. Georgian rear elevations here are usually the listed or locally listed face of the building across SE11. Any Kennington wrap around extension is validated by Lambeth Council, with Kennington Park the usual Kennington reference point on the site plan.
• Streatham (SW16) — Edwardian terraces, post-war flats defines Streatham, where edwardian terraces, post-war flats set what a wrap around extension can do. Edwardian plots here are wider across SW16. Any Streatham wrap around extension is validated by Lambeth Council, with Streatham High Road the usual Streatham reference point on the site plan.
• Stockwell (SW9) — a wrap around extension in Stockwell starts from victorian terraces, post-war estates, and Stockwell reads as Victorian terraces, post-war estates. 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 SW9. Lambeth Council assesses Stockwell wrap around extensions against its own Stockwell character guidance, and the location plan we draw for Stockwell references Stockwell station.
• Vauxhall (SE11, SW8) — a wrap around extension in Vauxhall starts from regency terraces, modern apartments, post-war flats, and Vauxhall reads as Regency fragments, riverside new-build. Post-war houses on these estates often sit under an estate management scheme in SE11. Lambeth Council assesses Vauxhall wrap around extensions against its own Vauxhall character guidance, and the location plan we draw for Vauxhall references Vauxhall Bridge.
• West Norwood (SE27) — Victorian terraces, Edwardian villas defines West Norwood, where victorian terraces, edwardian villas 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 SE27. Any West Norwood wrap around extension is validated by Lambeth Council, with West Norwood Cemetery the usual West Norwood reference point on the site plan.

Does Lambeth planning policy restrict a wrap around extension?

How designation changes a Lambeth wrap around extension: Lambeth Council maintains 64 conservation areas, including Brixton Road, Kennington, Brockwell Park. Inside any of them a Lambeth 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. Herne Hill sets the tone for Lambeth casework.

Lambeth and Article 4: Borough-wide Article 4 for HMO conversions; plus office-to-residential restrictions. A wrap around extension planned at a SE11 address is checked against that direction first; Lambeth Council publishes the Lambeth extent, and the SE11 line rarely follows the Lambeth boundary you would expect.

What Lambeth is built from: Victorian terraces in Clapham, Brixton, Herne Hill; Edwardian villas; 1930s and post-war estates in parts of Streatham; Georgian in Kennington. Mix of dense Victorian residential and post-war estate; strong conservation area coverage; generally design-led planning decisions. That mix decides the wrap around extension route in Lambeth more than the postcode does.

Who decides a wrap around extension on the edge of Lambeth?

• Wandsworth — the Wandsworth boundary runs against Lambeth, so a wrap around extension a street from Lambeth is decided by Wandsworth Council instead. Wandsworth runs 45 conservation areas across SW8 and its neighbours, which is why wrap around extensions priced for Lambeth are re-checked against Wandsworth policy whenever the Lambeth address sits on that edge.
• Croydon — the Croydon boundary runs against Lambeth, so a wrap around extension a street from Lambeth is decided by Croydon Council instead. Croydon runs 24 conservation areas across CR0 and its neighbours, which is why wrap around extensions priced for Lambeth are re-checked against Croydon policy whenever the Lambeth address sits on that edge.
• Merton — adjoining Lambeth, with 28 conservation areas centred on SW16. A wrap around extension on the far side of the Lambeth line is determined by Merton Council, so the Lambeth quote for wrap around extensions is checked against Merton guidance before it is issued.
• Westminster — the Westminster boundary runs against Lambeth, so a wrap around extension a street from Lambeth is decided by Westminster City Council instead. Westminster runs 56 conservation areas across SW1 and its neighbours, which is why wrap around extensions priced for Lambeth are re-checked against Westminster policy whenever the Lambeth address sits on that edge.

Sources for this Lambeth 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.