House Extension Drawings in Lambeth

Which Lambeth postcodes does this house extension service cover?

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

Which Lambeth neighbourhoods suit a house extension best?

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

• Herne Hill (SE24) — a house extension 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 house extensions 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 house extension can do. Georgian rear elevations here are usually the listed or locally listed face of the building across SE11. Any Kennington house extension is validated by Lambeth Council, with Kennington Park the usual Kennington reference point on the site plan.
• Streatham (SW16) — a house extension in Streatham starts from edwardian terraces, post-war flats, and Streatham reads as Edwardian terraces, post-war flats. Edwardian plots here are wider in SW16. Lambeth Council assesses Streatham house extensions against its own Streatham character guidance, and the location plan we draw for Streatham references Streatham High Road.
• Stockwell (SW9) — house extension work in Stockwell means victorian terraces, post-war estates. Stockwell is 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 throughout SW9. Lambeth Council decides the Stockwell application, and Stockwell station anchors the Stockwell location plan.
• Vauxhall (SE11, SW8) — a house 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 house extensions against its own Vauxhall character guidance, and the location plan we draw for Vauxhall references Vauxhall Bridge.
• West Norwood (SE27) — house extension work in West Norwood means victorian terraces, edwardian villas. West Norwood is Victorian terraces, Edwardian villas. 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 SE27. Lambeth Council decides the West Norwood application, and West Norwood Cemetery anchors the West Norwood location plan.
• Tulse Hill (SE27, SW2) — Victorian villas, Edwardian terraces defines Tulse Hill, where victorian villas, edwardian terraces set what a house 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 Tulse Hill house extension is validated by Lambeth Council, with Tulse Hill station the usual Tulse Hill reference point on the site plan.

Does Lambeth planning policy restrict a house extension?

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

What Article 4 removes near Lambeth: Borough-wide Article 4 for HMO conversions; plus office-to-residential restrictions. Before pricing a house extension we check whether the SE11 address is inside the mapped area, because Lambeth Council draws the Lambeth boundary street by street rather than across the whole of Lambeth.

Lambeth housing stock: 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. Read that before choosing a house extension route in Lambeth — construction, not postcode, sets what is achievable. Lambeth Council charges £548 for a householder application and has 8 weeks to determine it.

What happens if a Lambeth property sits on a boundary?

• Westminster — cross the Lambeth boundary and Westminster City Council takes the house extension instead, applying 56 conservation areas of its own around SW1. We re-price house extensions at the Lambeth edge because Westminster policy and Lambeth policy rarely align on house extension depth.
• Southwark — cross the Lambeth boundary and Southwark Council takes the house extension instead, applying 43 conservation areas of its own around SE1. We re-price house extensions at the Lambeth edge because Southwark policy and Lambeth policy rarely align on house extension depth.
• Wandsworth — cross the Lambeth boundary and Wandsworth Council takes the house extension instead, applying 45 conservation areas of its own around SW8. We re-price house extensions at the Lambeth edge because Wandsworth policy and Lambeth policy rarely align on house extension depth.
• Croydon — adjoining Lambeth, with 24 conservation areas centred on CR0. A house extension on the far side of the Lambeth line is determined by Croydon Council, so the Lambeth quote for house extensions is checked against Croydon guidance before it is issued.

Sources for this Lambeth house 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.