Wrap-around extension in Camden

Which Camden postcodes does this wrap around extension service cover?

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

How does a wrap around extension 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 wrap around extension can achieve at that address.

• Highgate (N6) — village character on the hill, Georgian and Victorian defines Highgate, where georgian villas, victorian and edwardian semis set what a wrap around extension can do. Georgian rear elevations here are usually the listed or locally listed face of the building across N6. Any Highgate wrap around extension is validated by Camden Council, with Highgate Cemetery the usual Highgate reference point on the site plan.
• Swiss Cottage (NW3, NW6) — mansion blocks and post-war flats defines Swiss Cottage, where mansion blocks, post-war flats set what a wrap around extension can do. Post-war houses on these estates often sit under an estate management scheme across NW3. Any Swiss Cottage wrap around extension is validated by Camden Council, with Swiss Cottage Library the usual Swiss Cottage reference point on the site plan.
• Gospel Oak (NW5) — Victorian terraces and estates near the Heath defines Gospel Oak, where victorian terraces, post-war estates set what a wrap around 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 NW5. Any Gospel Oak wrap around extension is validated by Camden Council, with Gospel Oak station the usual Gospel Oak reference point on the site plan.
• West Hampstead (NW6) — a wrap around extension in West Hampstead starts from edwardian mansion blocks, victorian villas, and West Hampstead reads as Victorian and Edwardian villa streets. 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 NW6. Camden Council assesses West Hampstead wrap around extensions against its own West Hampstead character guidance, and the location plan we draw for West Hampstead references West Hampstead Thameslink.
• Camden Town (NW1) — wrap around extension work in Camden Town means victorian terraces, mansion blocks. Camden Town is dense mixed-use, Victorian terraces, canal-side. 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 NW1. Camden Council decides the Camden Town application, and Camden Market anchors the Camden Town location plan.
• Hampstead (NW3) — affluent, listed Georgian and Victorian villas defines Hampstead, where georgian and victorian villas, listed buildings set what a wrap around extension can do. Georgian rear elevations here are usually the listed or locally listed face of the building across NW3. Any Hampstead wrap around extension is validated by Camden Council, with Hampstead Heath the usual Hampstead reference point on the site plan.
• Primrose Hill (NW1) — wrap around extension work in Primrose Hill means victorian and edwardian terraces. Primrose Hill is boutique village atmosphere, painted terraces. 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 NW1. Camden Council decides the Primrose Hill application, and Primrose Hill park anchors the Primrose Hill location plan.

What local planning policy applies to a wrap around extension in Camden?

Conservation areas covering Camden: Camden Council runs 40, and Primrose Hill, Bloomsbury, Camden Town are the ones Camden owners meet most. A wrap around extension inside a Camden conservation area loses permitted development, so the Camden submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Camden Town a wrap around extension is judged on the street elevation first.

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 wrap around extension 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.

Digging below a Camden property: Camden's basement policy (Policy A5) restricts single-storey basements to 50% of garden area; double-storey basements generally refused outside commercial zones. Where a wrap around extension in Camden involves excavation that is read beside the Party Wall etc. Act 1996, which needs two months notice for a Camden dig within 3 m of a neighbour, and Camden Council expects the N1C ground conditions addressed in the application.

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 wrap around extension route in Camden more than the postcode does.

Which neighbouring authorities border Camden?

• Barnet — cross the Camden boundary and Barnet Council takes the wrap around extension instead, applying 20 conservation areas of its own around N2. We re-price wrap around extensions at the Camden edge because Barnet policy and Camden policy rarely align on wrap around extension depth.
• Haringey — the Haringey boundary runs against Camden, so a wrap around extension a street from Camden is decided by Haringey Council instead. Haringey runs 29 conservation areas across N4 and its neighbours, which is why wrap around extensions priced for Camden are re-checked against Haringey policy whenever the Camden address sits on that edge.
• Brent — cross the Camden boundary and Brent Council takes the wrap around extension instead, applying 22 conservation areas of its own around NW2. We re-price wrap around extensions at the Camden edge because Brent policy and Camden policy rarely align on wrap around extension depth.
• City of London — cross the Camden boundary and City of London Corporation takes the wrap around extension instead, applying 27 conservation areas of its own around EC1. We re-price wrap around extensions at the Camden edge because City of London policy and Camden policy rarely align on wrap around extension depth.

Sources for this Camden wrap around 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.