Planning Permission — Rights for Applicants and Neighbours
Planning permission affects homeowners, developers, and neighbours alike. Whether you want to build an extension, object to a neighbour's development, or challenge a council's planning decision, understanding how the system works is essential. This guide covers permitted development, how to comment on applications, appealing decisions, and enforcement.
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When do you need planning permission?
Not all building works require planning permission. Permitted Development Rights (PDR) allow certain works without a formal application:
- ✓Single-storey rear extensions up to certain depths (3m for terraced/semi, 4m for detached — extendable under the Prior Approval route)
- ✓Loft conversions within volume limits that don't extend beyond the roof plane
- ✓Outbuildings (sheds, garages, home offices) within size limits
- ✓Internal alterations (no planning permission needed for most internal work)
Objecting to a planning application
Anyone can comment on a planning application — you don't need to be a neighbour. Comments must be based on material planning considerations — personal objections and loss of view are not usually valid grounds.
Valid material planning considerations include:
- ✓Overlooking and loss of privacy
- ✓Overshadowing and loss of sunlight
- ✓Visual impact on the streetscape or character of the area
- ✓Traffic and highway safety
- ✓Noise and disturbance during construction or after completion
- ✓Impact on protected trees or listed buildings
- ✓Drainage and flood risk
- ✓Design incompatibility with the area
Appealing a planning refusal
If your planning application is refused, you have the right to appeal. Only the applicant (not objectors) can appeal a refusal.
Planning enforcement — if work is done without permission
If a neighbour has carried out development without planning permission (or in breach of conditions), you can report it to the council's planning enforcement team.
- ✓Report to your council's planning enforcement team in writing
- ✓Enforcement is generally discretionary — the council decides whether to act
- ✓Common remedies: enforcement notice (requiring work to be undone), stop notice, breach of condition notice
- ✓For most breaches, the council has 4 years to enforce (10 years for change of use)
- ✓You have limited rights as a third party in enforcement proceedings — the council is the decision-maker
Get advice about your specific situation
Ash is a free UK guidance assistant. Ask about your rights, get step-by-step guidance, and generate a formal letter if you need one.
Talk to Ash — it's freeNo sign-up · No account · Works for England, Scotland, Wales & Northern Ireland