If your planning application has been refused, one of the first questions you will ask is:
“How much will a planning appeal actually cost me?”
The answer depends on the type of appeal, the complexity of the case, and whether you appoint a professional planning consultant to handle the process.
In this guide, we break down the real costs involved in a planning appeal in 2026.
Is There a Government Fee for a Planning Appeal?
In most cases, there is no Planning Inspectorate fee to submit a planning appeal in England.
That surprises many homeowners and developers.
However, while the appeal itself is usually free to lodge, there are still important costs to consider.
Typical Costs of a Planning Appeal
Householder Appeals
For standard home extension or domestic refusal appeals, professional planning appeal costs often range from:
- £1,500 – £5,000+
This depends on:
- complexity,
- planning history,
- number of objections,
- conservation constraints,
- and the amount of supporting evidence required.
Written Representation Appeals
Most smaller planning appeals are decided through written representations.
These are generally the most cost-effective route and are commonly used for:
- extensions,
- loft conversions,
- outbuildings,
- residential alterations,
- and smaller developments.
Hearing or Inquiry Appeals
More complex or contentious appeals may require:
- a hearing, or
- a full planning inquiry.
These can cost significantly more because they often involve:
- planning consultants,
- barristers,
- specialist reports,
- highways evidence,
- heritage consultants,
- or expert witnesses.
Complex appeals can cost:
- £3000-10,000+
Additional Costs You May Need to Budget For
Planning appeals sometimes require:
- architectural revisions,
- daylight/sunlight assessments,
- heritage statements,
- ecological surveys,
- highways reports,
- flood risk assessments,
- planning statements.
These documents can strengthen your case considerably.
Is a Planning Appeal Worth the Cost?
In many cases, yes.
A successful planning appeal can:
- unlock property value,
- enable development,
- prevent redesign costs,
- and overturn unreasonable refusals.
Many successful appeals arise because:
- councils misapplied policy,
- officers gave excessive weight to objections,
- or the proposal was actually policy-compliant.
Improve Your Chances Before Appealing
Before submitting an appeal, it is critical to assess:
- the council’s refusal reasons,
- local planning policy,
- appeal precedents,
- and the realistic likelihood of success.
A weak appeal wastes both time and money.
A strong appeal can overturn a refusal and save months of delay.
