Rear Dormer Loft Conversion Drawings in Herne Hill (SE24)

Which postcode districts around SE24 do we cover for rear dormer work?

Every SE24 postcode district we draw in, the stock that dominates it and the authority that validates a rear dormer there. SE24 fees below are the statutory England rates for 2026, not rear dormer estimates.

How does a rear dormer differ street by street across SE24?

Roof pitch, wall build-up and plot depth change every few SE24 streets, and each one changes what a rear dormer can achieve at that address.

• Inside SE24: Herne Hill (SE24) — rear dormer work in Herne Hill means victorian villas, edwardian terraces. Herne Hill is Victorian villas around Brockwell Park. Full-width rear dormers on Victorian terraces here are the default throughout SE24. Lambeth Council decides the Herne Hill application, and Brockwell Park anchors the Herne Hill location plan.
• Bordering SE24: Clapham (SW4) — rear dormer work in Clapham means victorian terraces, edwardian villas. Clapham is Victorian terraces around the common. Full-width rear dormers on Victorian terraces here are the default throughout SW4. Lambeth Council decides the Clapham application, and Clapham Common anchors the Clapham location plan.
• Bordering SE24: Brixton (SW2, SW9) — rear dormer work in Brixton means victorian terraces, post-war estates. Brixton is Victorian terraces, vibrant centre. Full-width rear dormers on Victorian terraces here are the default throughout SW2. Lambeth Council decides the Brixton application, and Brixton Market anchors the Brixton location plan.
• Bordering SE24: Kennington (SE11) — a rear dormer in Kennington starts from georgian terraces, post-war estates, and Kennington reads as Georgian terraces, Regency squares. A dormer on a Georgian roof has to sit behind the parapet line to stand any chance of consent in SE11. Lambeth Council assesses Kennington rear dormers against its own Kennington character guidance, and the location plan we draw for Kennington references Kennington Park.
• Bordering SE24: Streatham (SW16) — a rear dormer in Streatham starts from edwardian terraces, post-war flats, and Streatham reads as Edwardian terraces, post-war flats. The deeper Edwardian rear slope takes a full-width dormer without breaching the 40 m³ or 50 m³ volume limits on most of these houses in SW16. Lambeth Council assesses Streatham rear dormers against its own Streatham character guidance, and the location plan we draw for Streatham references Streatham High Road.
• Bordering SE24: Stockwell (SW9) — a rear dormer in Stockwell starts from victorian terraces, post-war estates, and Stockwell reads as Victorian terraces, post-war estates. Full-width rear dormers on Victorian terraces here are the default in SW9. Lambeth Council assesses Stockwell rear dormers against its own Stockwell character guidance, and the location plan we draw for Stockwell references Stockwell station.
• Bordering SE24: Vauxhall (SE11, SW8) — Regency fragments, riverside new-build defines Vauxhall, where regency terraces, modern apartments, post-war flats set what a rear dormer can do. Trussed post-war roofs need a full structural redesign before a dormer across SE11. Any Vauxhall rear dormer is validated by Lambeth Council, with Vauxhall Bridge the usual Vauxhall reference point on the site plan.
• Bordering SE24: West Norwood (SE27) — rear dormer work in West Norwood means victorian terraces, edwardian villas. West Norwood is Victorian terraces, Edwardian villas. Full-width rear dormers on Victorian terraces here are the default throughout SE27. Lambeth Council decides the West Norwood application, and West Norwood Cemetery anchors the West Norwood location plan.
• Bordering SE24: Tulse Hill (SE27, SW2) — rear dormer work in Tulse Hill means victorian villas, edwardian terraces. Tulse Hill is Victorian villas, Edwardian terraces. Full-width rear dormers on Victorian terraces here are the default throughout SE27. Lambeth Council decides the Tulse Hill application, and Tulse Hill station anchors the Tulse Hill location plan.
• Bordering SE24: Waterloo (SE1) — Georgian fragments, post-war estates, regen defines Waterloo, where georgian terraces, post-war flats, new-build set what a rear dormer can do. A dormer on a Georgian roof has to sit behind the parapet line to stand any chance of consent across SE1. Any Waterloo rear dormer is validated by Lambeth Council, with Southbank Centre the usual Waterloo reference point on the site plan.

Does SE24 planning policy restrict a rear dormer?

Conservation areas covering SE24 (Herne Hill): Lambeth Council runs 64, and Clapham Common, Herne Hill, Brixton Road are the ones SE24 (Herne Hill) owners meet most. A rear dormer inside a SE24 (Herne Hill) conservation area loses permitted development, so the SE24 (Herne Hill) submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Brockwell Park a rear dormer is judged on the street elevation first.

SE24 (Herne Hill) and Article 4: Borough-wide Article 4 for HMO conversions; plus office-to-residential restrictions. A rear dormer planned at a SE24 address is checked against that direction first; Lambeth Council publishes the SE24 (Herne Hill) extent, and the SE24 line rarely follows the SE24 (Herne Hill) boundary you would expect.

What SE24 (Herne Hill) 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 rear dormer route in SE24 (Herne Hill) more than the postcode does, and it is what a Lambeth Council case officer reads first. A householder application costs £548 paid to Lambeth Council direct, with 8 weeks to a decision once validated.

Conservation areas covering SE24 (Herne Hill): Southwark Council runs 43, and Camberwell Grove, Bermondsey Street, Dulwich Village are the ones SE24 (Herne Hill) owners meet most. A rear dormer inside a SE24 (Herne Hill) conservation area loses permitted development, so the SE24 (Herne Hill) submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Bermondsey Street a rear dormer is judged on the street elevation first.

SE24 (Herne Hill) and Article 4: Article 4 for HMOs borough-wide; additional Article 4 for office-to-residential in Bermondsey and Elephant & Castle. A rear dormer planned at a SE24 address is checked against that direction first; Southwark Council publishes the SE24 (Herne Hill) extent, and the SE24 line rarely follows the SE24 (Herne Hill) boundary you would expect.

What SE24 (Herne Hill) 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 rear dormer route in SE24 (Herne Hill) more than the postcode does, and it is what a Southwark Council case officer reads first. A householder application costs £548 paid to Southwark Council direct, with 8 weeks to a decision once validated.

Who decides a rear dormer on the edge of SE24?

• Westminster — adjoining SE24 (Herne Hill), with 56 conservation areas centred on SW1. A rear dormer on the far side of the SE24 (Herne Hill) line is determined by Westminster City Council, so the SE24 (Herne Hill) quote for rear dormers is checked against Westminster guidance before it is issued.
• Southwark — adjoining SE24 (Herne Hill), with 43 conservation areas centred on SE1. A rear dormer on the far side of the SE24 (Herne Hill) line is determined by Southwark Council, so the SE24 (Herne Hill) quote for rear dormers is checked against Southwark guidance before it is issued.
• Wandsworth — the Wandsworth boundary runs against Lambeth, so a rear dormer a street from SE24 (Herne Hill) is decided by Wandsworth Council instead. Wandsworth runs 45 conservation areas across SW8 and its neighbours, which is why rear dormers priced for SE24 (Herne Hill) are re-checked against Wandsworth policy whenever the SE24 (Herne Hill) address sits on that edge.
• Croydon — the Croydon boundary runs against Lambeth, so a rear dormer a street from SE24 (Herne Hill) is decided by Croydon Council instead. Croydon runs 24 conservation areas across CR0 and its neighbours, which is why rear dormers priced for SE24 (Herne Hill) are re-checked against Croydon policy whenever the SE24 (Herne Hill) address sits on that edge.
• City of London — adjoining SE24 (Herne Hill), with 27 conservation areas centred on EC1. A rear dormer on the far side of the SE24 (Herne Hill) line is determined by City of London Corporation, so the SE24 (Herne Hill) quote for rear dormers is checked against City of London guidance before it is issued.
• Lambeth — cross the SE24 (Herne Hill) boundary and Lambeth Council takes the rear dormer instead, applying 64 conservation areas of its own around SE1. We re-price rear dormers at the SE24 (Herne Hill) edge because Lambeth policy and Southwark policy rarely align on rear dormer depth.
• Lewisham — the Lewisham boundary runs against Southwark, so a rear dormer a street from SE24 (Herne Hill) is decided by Lewisham Council instead. Lewisham runs 30 conservation areas across SE3 and its neighbours, which is why rear dormers priced for SE24 (Herne Hill) are re-checked against Lewisham policy whenever the SE24 (Herne Hill) address sits on that edge.
• Bromley — cross the SE24 (Herne Hill) boundary and Bromley Council takes the rear dormer instead, applying 48 conservation areas of its own around BR1. We re-price rear dormers at the SE24 (Herne Hill) edge because Bromley policy and Southwark policy rarely align on rear dormer depth.

Sources for this SE24 rear dormer 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.