Rear dormer loft in Camden

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

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

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

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

• Fitzrovia (W1T) — a rear dormer in Fitzrovia starts from georgian terraces, victorian mansion blocks, and Fitzrovia reads as Georgian and Victorian mix, creative quarter. A dormer on a Georgian roof has to sit behind the parapet line to stand any chance of consent in W1T. Camden Council assesses Fitzrovia rear dormers against its own Fitzrovia character guidance, and the location plan we draw for Fitzrovia references Fitzroy Square.
• King's Cross (N1C) — regenerated quarter, contemporary new-build defines King's Cross, where modern apartments, converted warehouses set what a rear dormer can do. Shallow modern roof pitches rarely leave the head height a dormer needs across N1C. Any King's Cross rear dormer is validated by Camden Council, with King's Cross Station the usual King's Cross reference point on the site plan.
• Highgate (N6) — a rear dormer in Highgate starts from georgian villas, victorian and edwardian semis, and Highgate reads as village character on the hill, Georgian and Victorian. A dormer on a Georgian roof has to sit behind the parapet line to stand any chance of consent in N6. Camden Council assesses Highgate rear dormers against its own Highgate character guidance, and the location plan we draw for Highgate references Highgate Cemetery.
• Swiss Cottage (NW3, NW6) — rear dormer work in Swiss Cottage means mansion blocks, post-war flats. Swiss Cottage is mansion blocks and post-war flats. Trussed post-war roofs need a full structural redesign before a dormer throughout NW3. Camden Council decides the Swiss Cottage application, and Swiss Cottage Library anchors the Swiss Cottage location plan.
• Gospel Oak (NW5) — rear dormer work in Gospel Oak means victorian terraces, post-war estates. Gospel Oak is Victorian terraces and estates near the Heath. Full-width rear dormers on Victorian terraces here are the default throughout NW5. Camden Council decides the Gospel Oak application, and Gospel Oak station anchors the Gospel Oak location plan.
• West Hampstead (NW6) — rear dormer work in West Hampstead means edwardian mansion blocks, victorian villas. West Hampstead is Victorian and Edwardian villa streets. Full-width rear dormers on Victorian terraces here are the default throughout NW6. Camden Council decides the West Hampstead application, and West Hampstead Thameslink anchors the West Hampstead location plan.
• Camden Town (NW1) — dense mixed-use, Victorian terraces, canal-side defines Camden Town, where victorian terraces, mansion blocks set what a rear dormer can do. Full-width rear dormers on Victorian terraces here are the default across NW1. Any Camden Town rear dormer is validated by Camden Council, with Camden Market the usual Camden Town reference point on the site plan.

What local planning policy applies to a rear dormer in Camden?

Camden conservation designations: there are 40 across Camden Council, Primrose Hill, Bloomsbury, Camden Town among them. Designation costs a Camden owner the permitted-development route: a rear dormer then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Fitzrovia is the Camden designation that most often changes a rear dormer design.

What Article 4 removes near Camden: Article 4 removes permitted development for HMO conversions (C3 to C4) across the borough, plus restrictions on basement extensions in 12 conservation areas. Before pricing a rear dormer we check whether the N1C address is inside the mapped area, because Camden Council draws the Camden boundary street by street rather than across the whole of Camden.

Camden below-ground policy: Camden's basement policy (Policy A5) restricts single-storey basements to 50% of garden area; double-storey basements generally refused outside commercial zones. Any rear dormer in Camden that goes below existing foundations triggers two months notice under section 6 of the Party Wall etc. Act 1996, and Camden Council will want the N1C ground and groundwater position set out.

What Camden is built from: Victorian and Edwardian terraces, Georgian townhouses in Bloomsbury and Hampstead, post-war mansion blocks, modern developments in King's Cross. Creative, affluent in Hampstead and Primrose Hill; dense mixed-use around Camden Town and Kings Cross; academic character in Bloomsbury. That mix decides the rear dormer route in Camden more than the postcode does.

What happens if a Camden property sits on a boundary?

• Westminster — the Westminster boundary runs against Camden, so a rear dormer a street from Camden is decided by Westminster City Council instead. Westminster runs 56 conservation areas across SW1 and its neighbours, which is why rear dormers priced for Camden are re-checked against Westminster policy whenever the Camden address sits on that edge.
• Islington — the Islington boundary runs against Camden, so a rear dormer a street from Camden is decided by Islington Council instead. Islington runs 40 conservation areas across N1 and its neighbours, which is why rear dormers priced for Camden are re-checked against Islington policy whenever the Camden address sits on that edge.
• Barnet — the Barnet boundary runs against Camden, so a rear dormer a street from Camden is decided by Barnet Council instead. Barnet runs 20 conservation areas across N2 and its neighbours, which is why rear dormers priced for Camden are re-checked against Barnet policy whenever the Camden address sits on that edge.
• Haringey — adjoining Camden, with 29 conservation areas centred on N4. A rear dormer on the far side of the Camden line is determined by Haringey Council, so the Camden quote for rear dormers is checked against Haringey guidance before it is issued.

Sources for this Camden 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.