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.
Appeal time limits, act quickly
Time limits for planning appeals are strict, missing them means losing your right to appeal:
| Application type | Time limit from refusal |
|---|---|
| Householder applications (extensions, lofts, outbuildings) | 12 weeks |
| All other planning applications | 6 months |
| Enforcement Notice appeal | 28 days (or date on notice) |
| Non-determination (council failed to decide) | After 8 weeks (householder) or 13 weeks (major) |
The three appeal procedures
The Planning Inspectorate handles appeals in England via three procedures:
Lawful Development Certificates
If you believe your proposed works are permitted development, you can apply for a Lawful Development Certificate (LDC) from your council:
- ✓An LDC is a formal certificate confirming that your works do not require planning permission
- ✓It provides legal certainty, particularly useful when selling the property or remortgaging
- ✓Prospective LDC: before works begin, confirms planned works are lawful
- ✓Existing LDC: after works are complete, confirms existing development is lawful (e.g. where enforcement immunity has been reached)
- ✓Fee: approximately £206 (England, 2024) for householder applications
- ✓If the council refuses an LDC, you can appeal to the Planning Inspectorate
- ✓An LDC is not the same as planning permission, it simply confirms no permission is needed
Costs, can you recover appeal costs?
Planning appeals are free to submit, but costs can be awarded against a party that behaves unreasonably:
- ✓You can apply for costs against the council if they refuse without proper evidence, give vague or unsupported reasons, or behave unreasonably during the appeal
- ✓The council can apply for costs against you if your appeal has no reasonable prospect of success
- ✓Make a costs application at the same time as your appeal, it is a separate document
- ✓Costs are awarded in a minority of cases, and only where unreasonable behaviour is shown
- ✓Wasted costs orders: if a party introduces evidence very late or causes unnecessary delays, costs may be awarded
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 instant help right now
A Citizens Advice appointment can take weeks. Our free assistant is available 24/7 with no appointment, giving you clear, step-by-step answers about your exact situation, what to do next, and the deadlines that matter.
Need to take action? It can draft a ready-to-send formal letter for you (optional, from £4.99).
England, Scotland, Wales & Northern Ireland.
Frequently asked questions
Do I need planning permission for a home extension?
Many extensions can be built under Permitted Development (PD) rights without needing planning permission. Single-storey rear extensions of up to 4 metres (detached) or 3 metres (semi-detached or terraced) often qualify. However, PD rights can be removed by Article 4 directions in certain areas, and they do not apply to flats or listed buildings. Always check with your council before starting work.
How do I object to a neighbour's planning application?
When a planning application is submitted, neighbours are notified and given the opportunity to comment. You can submit objections through your council's planning portal during the consultation period (usually 21 days). Valid grounds include: impact on privacy, loss of light, noise, traffic, flood risk, and design out of keeping with the area. Personal objections (e.g. blocking a view) carry less weight than planning policy grounds.
Can I appeal a planning refusal?
If your planning application is refused, you can appeal to the Planning Inspectorate (England) or equivalent body in Scotland, Wales and Northern Ireland. Appeals must be submitted within 6 months of the refusal (or 12 weeks for householder applications). The Planning Inspectorate is independent of the local council, and approximately one third of appeals are successful.
What can I do if my neighbour builds without planning permission?
You can report unauthorised development to your local council's planning enforcement team. Councils have the power to issue an enforcement notice requiring the work to be demolished or altered. However, councils have discretion over whether to enforce, and they cannot act against development that has been in place for more than 4 years (10 years for a change of use).
What is permitted development?
Permitted Development (PD) rights allow certain types of building work and changes of use without requiring a planning application. Common PD rights include: loft conversions, outbuildings, solar panels, and some extensions. You can apply to your council for a Lawful Development Certificate to confirm your project falls within PD rights, this provides legal certainty if you sell the property.
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