Two-storey rear extension in Lambeth

Which Lambeth postcodes does this two storey rear service cover?

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

Which Lambeth neighbourhoods suit a two storey rear best?

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

• West Norwood (SE27) — Victorian terraces, Edwardian villas defines West Norwood, where victorian terraces, edwardian villas set what a two storey rear 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 two storey rear is validated by Lambeth Council, with West Norwood Cemetery the usual West Norwood reference point on the site plan.
• Tulse Hill (SE27, SW2) — Victorian villas, Edwardian terraces defines Tulse Hill, where victorian villas, edwardian terraces set what a two storey rear 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 Tulse Hill two storey rear is validated by Lambeth Council, with Tulse Hill station the usual Tulse Hill reference point on the site plan.
• Waterloo (SE1) — a two storey rear in Waterloo starts from georgian terraces, post-war flats, new-build, and Waterloo reads as Georgian fragments, post-war estates, regen. Georgian rear elevations here are usually the listed or locally listed face of the building in SE1. Lambeth Council assesses Waterloo two storey rears against its own Waterloo character guidance, and the location plan we draw for Waterloo references Southbank Centre.
• Clapham (SW4) — a two storey rear in Clapham starts from victorian terraces, edwardian villas, and Clapham reads as Victorian terraces 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 in SW4. Lambeth Council assesses Clapham two storey rears against its own Clapham character guidance, and the location plan we draw for Clapham references Clapham Common.
• Brixton (SW2, SW9) — a two storey rear 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 two storey rears against its own Brixton character guidance, and the location plan we draw for Brixton references Brixton Market.
• Herne Hill (SE24) — a two storey rear in Herne Hill starts from victorian villas, edwardian terraces, and Herne Hill reads as 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 in SE24. Lambeth Council assesses Herne Hill two storey rears against its own Herne Hill character guidance, and the location plan we draw for Herne Hill references Brockwell Park.
• Kennington (SE11) — Georgian terraces, Regency squares defines Kennington, where georgian terraces, post-war estates set what a two storey rear can do. Georgian rear elevations here are usually the listed or locally listed face of the building across SE11. Any Kennington two storey rear is validated by Lambeth Council, with Kennington Park the usual Kennington reference point on the site plan.

Does Lambeth planning policy restrict a two storey rear?

Conservation areas covering Lambeth: Lambeth Council runs 64, and Kennington, Brockwell Park, Streatham Hill are the ones Lambeth owners meet most. A two storey rear inside a Lambeth conservation area loses permitted development, so the Lambeth submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Clapham Common a two storey rear is judged on the street elevation first.

Article 4 and your Lambeth two storey rear: Borough-wide Article 4 for HMO conversions; plus office-to-residential restrictions. At a SE11 address that matters twice over, because Lambeth Council applies the direction unevenly across Lambeth — we read the Lambeth policies map for the exact SE11 address before quoting two storey rears.

The building fabric around Lambeth: 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. A two storey rear in Lambeth is scoped against that stock first.

What happens if a Lambeth property sits on a boundary?

• Merton — adjoining Lambeth, with 28 conservation areas centred on SW16. A two storey rear on the far side of the Lambeth line is determined by Merton Council, so the Lambeth quote for two storey rears is checked against Merton guidance before it is issued.
• Westminster — cross the Lambeth boundary and Westminster City Council takes the two storey rear instead, applying 56 conservation areas of its own around SW1. We re-price two storey rears at the Lambeth edge because Westminster policy and Lambeth policy rarely align on two storey rear depth.
• Southwark — the Southwark boundary runs against Lambeth, so a two storey rear a street from Lambeth is decided by Southwark Council instead. Southwark runs 43 conservation areas across SE1 and its neighbours, which is why two storey rears priced for Lambeth are re-checked against Southwark policy whenever the Lambeth address sits on that edge.
• Wandsworth — cross the Lambeth boundary and Wandsworth Council takes the two storey rear instead, applying 45 conservation areas of its own around SW8. We re-price two storey rears at the Lambeth edge because Wandsworth policy and Lambeth policy rarely align on two storey rear depth.

Sources for this Lambeth two storey rear 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.