Bloomsbury — 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.


WC1A primarily covers Bloomsbury in Camden.
Decisions for WC1A 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 WC1A 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.
Bloomsbury in WC1A is characterised by the housing stock of Camden — broadly victorian and edwardian terraces.

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Every WC1A postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. WC1A fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| WC1A | Bloomsbury | mixed Victorian and inter-war stock | WC1A covers Bloomsbury only; Camden Council handles the drawing package. |
| N1C | King's Cross | Modern apartments, converted warehouses | Adjoining district to WC1A, also inside Camden for drawing package purposes. |
| N6 | Highgate | Georgian villas, Victorian and Edwardian semis | Adjoining district to WC1A, also inside Camden for drawing package purposes. |
| NW1 | Camden Town / Regent's Park | Victorian terraces, mansion blocks | Adjoining district to WC1A, also inside Camden for drawing package purposes. |
| NW3 | Hampstead / Belsize Park | Georgian and Victorian villas, listed buildings | Adjoining district to WC1A, also inside Camden for drawing package purposes. |
Roof pitch, wall build-up and plot depth change every few WC1A streets, and each one changes what a drawing package can achieve at that address.
WC1A (Bloomsbury) conservation designations: there are 40 across Camden Council, Primrose Hill, Bloomsbury, Camden Town among them. Designation costs a WC1A (Bloomsbury) 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 WC1A (Bloomsbury) designation that most often changes a drawing package design.
What Article 4 removes near WC1A (Bloomsbury): 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 drawing package we check whether the WC1A address is inside the mapped area, because Camden Council draws the WC1A (Bloomsbury) boundary street by street rather than across the whole of WC1A (Bloomsbury).
WC1A (Bloomsbury) 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 WC1A (Bloomsbury) 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 WC1A ground and groundwater position set out.
WC1A (Bloomsbury) 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 WC1A (Bloomsbury) — construction, not postcode, sets what is achievable. Camden Council charges £548 for a householder application and has 8 weeks to determine it.
Sources for this WC1A 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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