Camden is one of London's most tightly controlled boroughs for residential development. Around 72% of the borough lies within a designated conservation area, meaning many addresses that would otherwise qualify for permitted development lose those rights entirely. Listed buildings are widespread — from Georgian terraces in Bloomsbury to Victorian villas in Primrose Hill — and an Article 4 direction specifically removes PD rights for basement works across large parts of the borough.
Common projects that may be straightforward when they fit within PD limits and local constraints.
These are the usual reasons planning permission becomes more likely in Camden.
The biggest drivers of approval are the exact proposal (dimensions and design) and the exact site constraints (designation, conditions, neighbour impacts). Use borough context as a starting point, then validate it with address-level checks and nearby precedents.
Projects that stay modest in size, match materials, and avoid obvious neighbour impacts are more likely to be straightforward — even before you consider borough-specific policies.
Conservation areas, listed buildings, Article 4 directions, flood risk and TPOs can flip the answer. Address-level checks stop you wasting money on the wrong scheme.
The fastest signal is what the council has approved or refused on comparable streets nearby. Precedent does not guarantee success, but it helps you shape a lower-risk design.
Basement proposals are highly site-specific. Always validate with an address-level check and professional advice.
Check my propertyCouncils rarely refuse the "idea" of an extension or loft conversion — refusals are usually about scale, design, neighbour impacts, and policy/designation conflicts. When you run a check, CanUBuild shows nearby approvals and refusals so you can see what has worked locally.
An invalid application cannot be registered. Use this checklist to ensure your submission is complete before you pay the fee.
Requirements can change — always verify the current validation checklist on the Camden Council website before submitting.
Search the address, choose your project type, and get an answer based on permitted development rules, local constraints, and nearby precedent decisions.
Possibly — many terraced and semi-detached houses in Camden are in a conservation area, which restricts what you can do under permitted development. Article 4 directions also affect basements across a large part of the borough. Always check the specific constraints at your address before assuming PD applies.
Very strict by London standards. Dormers on rear slopes can sometimes be permitted development, but front-facing roof alterations almost always need planning permission. In conservation areas, the design of any dormer is scrutinised against the Camden Design Guide and the relevant CA appraisal.
Camden has an Article 4 direction that removes permitted development rights for basement works across much of the borough. This means a new basement or basement extension typically requires a full planning application, even for works that would be PD elsewhere. Camden's Basements Planning Guidance (March 2018) sets out what is expected.
Camden's interactive planning map on the council website shows conservation area boundaries. You can also use the CanUBuild checker to search your address — it pulls designation data and shows you which constraints apply before you spend money on drawings.
Last reviewed: 2026-03 · This guide is for general information only. Always verify with Camden Council or a qualified planning consultant before making decisions.