Which Tulse Hill postcodes does this mansard roof extension service cover?
Every Tulse Hill postcode district we draw in, the stock that dominates
it and the authority that validates a mansard roof extension there. Tulse Hill fees below are the
statutory England rates for 2026, not mansard roof extension estimates.
| Postcode | Area | Dominant stock | What it means for a mansard roof extension |
|---|
| SE27 | West Norwood / Tulse Hill | Victorian villas, Edwardian terraces | A mansard roof extension at an SE27 address in West Norwood / Tulse Hill is determined by Lambeth Council under its own Local Plan policies for West Norwood / Tulse Hill. |
| SW2 | Brixton Hill / Tulse Hill | Victorian villas, Edwardian terraces | Brixton Hill / Tulse Hill sits wholly inside SW2, so Lambeth Council validates every mansard roof extension submitted from an SW2 address. |
| SW4 | Clapham | Victorian terraces, Edwardian villas | Neighbouring Clapham, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SW2 | Brixton | Victorian terraces, post-war estates | Neighbouring Brixton, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SE24 | Herne Hill | Victorian villas, Edwardian terraces | Neighbouring Herne Hill, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SE11 | Kennington | Georgian terraces, post-war estates | Neighbouring Kennington, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SW16 | Streatham | Edwardian terraces, post-war flats | Neighbouring Streatham, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SW9 | Stockwell | Victorian terraces, post-war estates | Neighbouring Stockwell, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SE11 | Vauxhall | Regency terraces, modern apartments, post-war flats | Neighbouring Vauxhall, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SE27 | West Norwood | Victorian terraces, Edwardian villas | Neighbouring West Norwood, where mansard roof extension work is handled by the same Lambeth Council case officers. |
| SE1 | Waterloo | Georgian terraces, post-war flats, new-build | Neighbouring Waterloo, where mansard roof extension work is handled by the same Lambeth Council case officers. |
Which Tulse Hill neighbourhoods suit a mansard roof extension best?
Roof pitch, wall build-up and plot depth change every few Tulse Hill
streets, and each one changes what a mansard roof extension can achieve at that address.
- Tulse Hill (SE27, SW2) — Victorian villas, Edwardian terraces defines Tulse Hill, where victorian villas, edwardian terraces set what a mansard roof extension can do. A mansard on a Victorian terrace almost always needs full planning permission across SE27. Any Tulse Hill mansard roof extension is validated by Lambeth Council, with Tulse Hill station the usual Tulse Hill reference point on the site plan.
- Near Tulse Hill: Brixton (SW2, SW9) — mansard roof extension work in Brixton means victorian terraces, post-war estates. Brixton is Victorian terraces, vibrant centre. A mansard on a Victorian terrace almost always needs full planning permission throughout SW2. Lambeth Council decides the Brixton application, and Brixton Market anchors the Brixton location plan.
- Near Tulse Hill: Herne Hill (SE24) — Victorian villas around Brockwell Park defines Herne Hill, where victorian villas, edwardian terraces set what a mansard roof extension can do. A mansard on a Victorian terrace almost always needs full planning permission across SE24. Any Herne Hill mansard roof extension is validated by Lambeth Council, with Brockwell Park the usual Herne Hill reference point on the site plan.
- Near Tulse Hill: Kennington (SE11) — Georgian terraces, Regency squares defines Kennington, where georgian terraces, post-war estates set what a mansard roof extension can do. Mansards read as original on Georgian terraces across SE11. Any Kennington mansard roof extension is validated by Lambeth Council, with Kennington Park the usual Kennington reference point on the site plan.
- Near Tulse Hill: Streatham (SW16) — Edwardian terraces, post-war flats defines Streatham, where edwardian terraces, post-war flats set what a mansard roof extension can do. Edwardian parapets give a mansard a clean base line across SW16. Any Streatham mansard roof extension is validated by Lambeth Council, with Streatham High Road the usual Streatham reference point on the site plan.
- Near Tulse Hill: Stockwell (SW9) — a mansard roof extension in Stockwell starts from victorian terraces, post-war estates, and Stockwell reads as Victorian terraces, post-war estates. A mansard on a Victorian terrace almost always needs full planning permission in SW9. Lambeth Council assesses Stockwell mansard roof extensions against its own Stockwell character guidance, and the location plan we draw for Stockwell references Stockwell station.
- Near Tulse Hill: Vauxhall (SE11, SW8) — mansard roof extension work in Vauxhall means regency terraces, modern apartments, post-war flats. Vauxhall is Regency fragments, riverside new-build. Mansards on post-war blocks are a structural and fire-strategy exercise before they are throughout SE11. Lambeth Council decides the Vauxhall application, and Vauxhall Bridge anchors the Vauxhall location plan.
How do conservation areas and Article 4 affect a mansard roof extension in Tulse Hill?
Tulse Hill conservation designations: there are 64 across Lambeth Council, Brockwell Park, Streatham Hill, Clapham Common among them. Designation costs a Tulse Hill owner the permitted-development route: a mansard roof extension then needs a £258 householder application over 8 weeks, in place of the £120 prior approval route that takes 6 weeks. Kennington is the Tulse Hill designation that most often changes a mansard roof extension design.
What Article 4 removes near Tulse Hill: Borough-wide Article 4 for HMO conversions; plus office-to-residential restrictions. Before pricing a mansard roof extension we check whether the SE27 address is inside the mapped area, because Lambeth Council draws the Tulse Hill boundary street by street rather than across the whole of Tulse Hill.
The building fabric around Tulse Hill: 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 mansard roof extension in Tulse Hill is scoped against that stock first. Our Tulse Hill fixed fee starts at £1,575; the £1,750 Complete package runs the Tulse Hill scheme through Lambeth Council planning and building control in one go.
Who decides a mansard roof extension on the edge of Tulse Hill?
- Merton — the Merton boundary runs against Lambeth, so a mansard roof extension a street from Tulse Hill is decided by Merton Council instead. Merton runs 28 conservation areas across SW16 and its neighbours, which is why mansard roof extensions priced for Tulse Hill are re-checked against Merton policy whenever the Tulse Hill address sits on that edge.
- Westminster — the Westminster boundary runs against Lambeth, so a mansard roof extension a street from Tulse Hill is decided by Westminster City Council instead. Westminster runs 56 conservation areas across SW1 and its neighbours, which is why mansard roof extensions priced for Tulse Hill are re-checked against Westminster policy whenever the Tulse Hill address sits on that edge.
- Southwark — adjoining Tulse Hill, with 43 conservation areas centred on SE1. A mansard roof extension on the far side of the Tulse Hill line is determined by Southwark Council, so the Tulse Hill quote for mansard roof extensions is checked against Southwark guidance before it is issued.
- Wandsworth — adjoining Tulse Hill, with 45 conservation areas centred on SW8. A mansard roof extension on the far side of the Tulse Hill line is determined by Wandsworth Council, so the Tulse Hill quote for mansard roof extensions is checked against Wandsworth guidance before it is issued.
Sources for this Tulse Hill mansard roof 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.
