Highgate — covered by Camden Council.
Planning permission drawings delivered by an MCIAT chartered team.
Building regulations drawings delivered by an MCIAT chartered team.
Loft conversion drawings delivered by an MCIAT chartered team.
House extension drawings delivered by an MCIAT chartered team.
Mansard roof extensions delivered by an MCIAT chartered team.
Garage conversion drawings delivered by an MCIAT chartered team.
Basement conversion drawings delivered by an MCIAT chartered team.
Structural calculations delivered by an MCIAT chartered team.
Measured building survey delivered by an MCIAT chartered team.
Party wall services delivered by an MCIAT chartered team.
Rear dormer drawings delivered by an MCIAT chartered team.


N6 primarily covers Highgate in Camden. It also touches Haringey.
Decisions for N6 are made by Camden Council. Standard Permitted Development rules apply for most rear extensions and loft conversions on terraced and semi-detached houses, unless the property is in a conservation area, is listed, or sits under an Article 4 Direction. Article 4 in Camden: Yes.
Building regs from £950. We do not charge hourly. Free site survey across all N6 addresses.
From first call to planning decision: typically 12–14 weeks. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination. Camden Council timelines align with the national norm.
Highgate in N6 is characterised by the housing stock of Camden — broadly victorian and edwardian terraces.

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Every N6 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. N6 fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| N6 | Highgate | Georgian villas, Victorian and Edwardian semis | Highgate is split at N6. Either Camden Council or Haringey Council can determine a drawing package here, so the N6 address is checked against both policies maps first. |
| N6 | Highgate (Haringey) | Georgian villas, Victorian terraces | Highgate (Haringey) sits inside N6; drawing package proposals here are determined by Haringey Council. |
| N1C | King's Cross | Modern apartments, converted warehouses | Adjoining district to N6, also inside Camden for drawing package purposes. |
| NW1 | Camden Town / Regent's Park | Victorian terraces, mansion blocks | Adjoining district to N6, also inside Camden for drawing package purposes. |
| NW3 | Hampstead / Belsize Park | Georgian and Victorian villas, listed buildings | Adjoining district to N6, also inside Camden for drawing package purposes. |
| N4 | Finsbury Park / Stroud Green | Victorian terraces, post-war estates | Adjoining district to N6, also inside Haringey for drawing package purposes. |
| N8 | Crouch End / Hornsey | Edwardian terraces, Victorian villas | Adjoining district to N6, also inside Haringey for drawing package purposes. |
| N10 | Muswell Hill | Edwardian villas, 1930s semi-detached | Adjoining district to N6, also inside Haringey for drawing package purposes. |
| N15 | Seven Sisters / South Tottenham | Victorian terraces, post-war estates | Adjoining district to N6, also inside Haringey for drawing package purposes. |
Roof pitch, wall build-up and plot depth change every few N6 streets, and each one changes what a drawing package can achieve at that address.
N6 (Highgate) conservation designations: there are 40 across Camden Council, Fitzrovia, Hampstead, Primrose Hill among them. Designation costs a N6 (Highgate) owner the permitted-development route: a drawing package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Bloomsbury is the N6 (Highgate) designation that most often changes a drawing package design.
N6 (Highgate) and Article 4: Article 4 removes permitted development for HMO conversions (C3 to C4) across the borough, plus restrictions on basement extensions in 12 conservation areas. A drawing package planned at a N6 address is checked against that direction first; Camden Council publishes the N6 (Highgate) extent, and the N6 line rarely follows the N6 (Highgate) boundary you would expect.
N6 (Highgate) 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 drawing package in N6 (Highgate) 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 N6 ground and groundwater position set out.
N6 (Highgate) housing stock: 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. Read that before choosing a drawing package route in N6 (Highgate) — construction, not postcode, sets what is achievable. Camden Council charges £548 for a householder application and has 8 weeks to determine it.
N6 (Highgate) conservation designations: there are 29 across Haringey Council, Bruce Castle, Highgate Village, Muswell Hill among them. Designation costs a N6 (Highgate) owner the permitted-development route: a drawing package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Crouch End is the N6 (Highgate) designation that most often changes a drawing package design.
N6 (Highgate) and Article 4: Borough-wide Article 4 for HMO conversions. A drawing package planned at a N6 address is checked against that direction first; Haringey Council publishes the N6 (Highgate) extent, and the N6 line rarely follows the N6 (Highgate) boundary you would expect.
N6 (Highgate) housing stock: Edwardian terraces in Crouch End, Muswell Hill; Victorian two-up-two-downs in Harringay Ladder; 1930s semi-detached in Muswell Hill; post-war in Tottenham. Muswell Hill and Crouch End have strong conservation coverage with clear loft/mansard precedents; Tottenham generally permissive. Read that before choosing a drawing package route in N6 (Highgate) — construction, not postcode, sets what is achievable. Haringey Council charges £548 for a householder application and has 8 weeks to determine it.
Sources for this N6 drawing package 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.
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