Rear Dormer Loft Conversion Drawings in East Finchley (N2)

Which N2 postcodes does this rear dormer service cover?

Every N2 postcode district we draw in, the stock that dominates it and the authority that validates a rear dormer there. N2 fees below are the statutory England rates for 2026, not rear dormer estimates.

What changes about a rear dormer in each part of N2?

Roof pitch, wall build-up and plot depth change every few N2 streets, and each one changes what a rear dormer can achieve at that address.

• Inside N2: East Finchley (N2) — Edwardian terraces, 1930s semi-detached defines East Finchley, where edwardian terraces, 1930s semi-detached set what a rear dormer can do. 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 across N2. Any East Finchley rear dormer is validated by Barnet Council, with Phoenix Cinema the usual East Finchley reference point on the site plan.
• Bordering N2: Finchley (N3, N12) — a rear dormer in Finchley starts from 1930s semi-detached, edwardian villas, and Finchley reads as 1930s semi-detached, Edwardian villas. 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 N3. Barnet Council assesses Finchley rear dormers against its own Finchley character guidance, and the location plan we draw for Finchley references Finchley Central.
• Bordering N2: Hampstead Garden Suburb (NW11) — a rear dormer in Hampstead Garden Suburb starts from arts & crafts houses, edwardian villas, and Hampstead Garden Suburb reads as Arts & Crafts garden suburb, conservation. 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 NW11. Barnet Council assesses Hampstead Garden Suburb rear dormers against its own Hampstead Garden Suburb character guidance, and the location plan we draw for Hampstead Garden Suburb references Central Square.
• Bordering N2: Golders Green (NW11) — Edwardian and 1930s semi-detached defines Golders Green, where edwardian villas, 1930s semi-detached set what a rear dormer can do. 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 across NW11. Any Golders Green rear dormer is validated by Barnet Council, with Golders Green Hippodrome the usual Golders Green reference point on the site plan.
• Bordering N2: Muswell Hill (N10) — a rear dormer in Muswell Hill starts from edwardian villas, 1930s semi-detached, and Muswell Hill reads as Edwardian villas and terraces. 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 N10. Barnet Council assesses Muswell Hill rear dormers against its own Muswell Hill character guidance, and the location plan we draw for Muswell Hill references Alexandra Palace.
• Bordering N2: Hendon (NW4) — a rear dormer in Hendon starts from 1930s semi-detached, post-war flats, and Hendon reads as 1930s semi-detached, post-war flats. Hip-to-gable plus rear dormer is the standard sequence on these 1930s semis in NW4. Barnet Council assesses Hendon rear dormers against its own Hendon character guidance, and the location plan we draw for Hendon references RAF Museum.
• Bordering N2: Mill Hill (NW7) — Georgian and 1930s detached defines Mill Hill, where georgian villas, 1930s detached and semi-detached 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 NW7. Any Mill Hill rear dormer is validated by Barnet Council, with Mill Hill Village the usual Mill Hill reference point on the site plan.
• Bordering N2: Edgware (HA8) — 1930s semi-detached, post-war flats defines Edgware, where 1930s semi-detached, post-war flats set what a rear dormer can do. Hip-to-gable plus rear dormer is the standard sequence on these 1930s semis across HA8. Any Edgware rear dormer is validated by Barnet Council, with Edgware Tube the usual Edgware reference point on the site plan.
• Bordering N2: Colindale (NW9) — a rear dormer in Colindale starts from post-war flats, new-build, and Colindale reads as post-war flats, new-build. Trussed post-war roofs need a full structural redesign before a dormer in NW9. Barnet Council assesses Colindale rear dormers against its own Colindale character guidance, and the location plan we draw for Colindale references Colindale station.
• Bordering N2: Whetstone (N20) — 1930s semi-detached, Edwardian villas defines Whetstone, where 1930s semi-detached, edwardian villas set what a rear dormer can do. 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 across N20. Any Whetstone rear dormer is validated by Barnet Council, with Totteridge & Whetstone the usual Whetstone reference point on the site plan.

Does N2 planning policy restrict a rear dormer?

N2 (East Finchley) conservation designations: there are 20 across Barnet Council, Golders Green, Monken Hadley, Hampstead Garden Suburb among them. Designation costs a N2 (East Finchley) 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. Hendon is the N2 (East Finchley) designation that most often changes a rear dormer design.

Article 4 and your N2 (East Finchley) rear dormer: Barnet Council has made no borough-wide direction, so permitted development for a rear dormer in N2 (East Finchley) generally survives outside N2 (East Finchley) conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a N2 owner records that a rear dormer was lawful.

The building fabric around N2 (East Finchley): 1930s semi-detached dominates; Edwardian villas in Muswell Hill, Finchley; Garden Suburb Arts & Crafts in Hampstead Garden Suburb; post-war flats in Colindale. Suburban outer-London borough; permitted development used heavily; Hampstead Garden Suburb has its own residents' trust with additional design controls. A rear dormer in N2 (East Finchley) is scoped against that stock first, because it decides whether the scheme runs as permitted development, a £274 Lawful Development Certificate, or a full £548 application to Barnet Council.

What happens if a N2 property sits on a boundary?

• Enfield — adjoining N2 (East Finchley), with 22 conservation areas centred on EN1. A rear dormer on the far side of the N2 (East Finchley) line is determined by Enfield Council, so the N2 (East Finchley) quote for rear dormers is checked against Enfield guidance before it is issued.
• Harrow — adjoining N2 (East Finchley), with 29 conservation areas centred on HA1. A rear dormer on the far side of the N2 (East Finchley) line is determined by Harrow Council, so the N2 (East Finchley) quote for rear dormers is checked against Harrow guidance before it is issued.
• Brent — adjoining N2 (East Finchley), with 22 conservation areas centred on NW2. A rear dormer on the far side of the N2 (East Finchley) line is determined by Brent Council, so the N2 (East Finchley) quote for rear dormers is checked against Brent guidance before it is issued.
• Camden — adjoining N2 (East Finchley), with 40 conservation areas centred on NW1. A rear dormer on the far side of the N2 (East Finchley) line is determined by Camden Council, so the N2 (East Finchley) quote for rear dormers is checked against Camden guidance before it is issued.

Sources for this N2 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.