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When and how you can appeal or comment on a planning decision.

First published:
9 January 2019
Last updated:

When you can appeal

Your local planning authority makes decisions on planning applications.

You can appeal a planning decision if either:

  • you disagree with it
  • the decision was not made within 8 weeks

There’s a different process to appeal a householder planning decision for a smaller project like an extension, conservatory or loft conversion.

There’s no fee for appealing.

Only the person who made the application can appeal. If you did not apply, you can comment on an appeal instead.

Deadline for appealing

If you disagree with a decision, you must appeal within 6 months of the date on the decision notice from your local planning authority.

If they did not make a decision within 8 weeks, there is no deadline for appealing.

If you’ve received an enforcement notice you must appeal within 28 days of the notice.

When you can expect a decision

Once your appeal has started, you’ll normally get a decision within 14 weeks but it can take longer.

How to appeal

How to complete and Submit your Appeal

You can find appeal forms here.  Completed appeals forms can be e-mailed to  If you want to appeal more than one decision you must make a separate appeal for each.

Send a copy of your appeal, including all the supporting documents, to your local planning authority. 

Documents you must provide

You’ll need to submit copies of:

  • your original application
  • the site ownership certificate
  • the local planning authority’s decision notice (if they did not make a decision, submit a copy of the letter acknowledging your application)
  • all plans, drawings and documents you sent to the local planning authority
  • any plans, drawings or documents relating to the application which weren’t sent to the local planning authority
  • all correspondence with the local planning authority relating to the application
  • your appeal form 
  • any other documents that directly support your appeal, for example your full statement of case

You can end these documents  by post or email to Planning and Environment Decisions Wales.

Planning and Environment Decisions Wales
2nd Floor West 
Crown Buildings  
Cathays Park
CF10 3NQ

Telephone 0300 0604400. Rydym yn croesawu galwadau’n Gymraeg / We welcome calls in Welsh.  

Comment on an appeal

Anyone can comment on a planning appeal.

The deadline for comments is 4 weeks after the start date of the appeal.

Your local planning authority must tell anyone who has commented on the original application (interested parties) that there’s an appeal.

They have to do this within a week of the appeal being started by Planning and Environment Decisions Wales .

Read the detailed guidance about taking part in an appeal

After you appeal

Planning and Environment Decisions Wales will check your appeal to make sure it’s valid. They’ll tell you what happens next and how long your appeal may take.

Planning and Environment Decisions Wales will then consider your appeal. You’ll normally get a decision within 14 weeks of the starting date but it can take longer.

If anyone behaves unreasonably

You can apply for an award of costs if anyone involved in your appeal has cost you money by behaving unreasonably, for example missing deadlines. You can have costs awarded against you too.

You can complain about how Planning and Environment Decisions Wales  handled your appeal. There’s no time limit for complaints.

If you disagree with the appeal decision

You can challenge the decision in the High Court if you think the Planning Inspectorate made a legal mistake.

Get advice from a lawyer if you’re unsure about this.