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.


WC1B primarily covers Bloomsbury in Camden.
Decisions for WC1B 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 WC1B 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 WC1B is characterised by the housing stock of Camden — broadly victorian and edwardian terraces.

Pick a slot that suits you. No obligation and no sales pressure, just straight answers on your planning route.
Every WC1B postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. WC1B fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| WC1B | Bloomsbury | mixed Victorian and inter-war stock | A drawing package at an WC1B address in Bloomsbury is determined by Camden Council under its own Local Plan policies for Bloomsbury. |
| N1C | King's Cross | Modern apartments, converted warehouses | Adjoining district to WC1B, also inside Camden for drawing package purposes. |
| N6 | Highgate | Georgian villas, Victorian and Edwardian semis | Adjoining district to WC1B, also inside Camden for drawing package purposes. |
| NW1 | Camden Town / Regent's Park | Victorian terraces, mansion blocks | Adjoining district to WC1B, also inside Camden for drawing package purposes. |
| NW3 | Hampstead / Belsize Park | Georgian and Victorian villas, listed buildings | Adjoining district to WC1B, also inside Camden for drawing package purposes. |
Roof pitch, wall build-up and plot depth change every few WC1B streets, and each one changes what a drawing package can achieve at that address.
How designation changes a WC1B (Bloomsbury) drawing package: Camden Council maintains 40 conservation areas, including Fitzrovia, Hampstead, Primrose Hill. Inside any of them a WC1B (Bloomsbury) drawing package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Fitzrovia sets the tone for WC1B (Bloomsbury) casework.
Article 4 and your WC1B (Bloomsbury) drawing package: Article 4 removes permitted development for HMO conversions (C3 to C4) across the borough, plus restrictions on basement extensions in 12 conservation areas. At a WC1B address that matters twice over, because Camden Council applies the direction unevenly across WC1B (Bloomsbury) — we read the WC1B (Bloomsbury) policies map for the exact WC1B address before quoting architectural drawings.
WC1B (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 WC1B (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 WC1B ground and groundwater position set out.
The building fabric around WC1B (Bloomsbury): 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. A drawing package in WC1B (Bloomsbury) 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 Camden Council.
Sources for this WC1B 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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