Your planning application has been refused. You've spent thousands on drawings and consultants, and now you're staring at a decision notice listing reasons you're not sure you agree with. You have two options: appeal to the Planning Inspectorate, or redesign and resubmit. Which one makes sense?
The answer depends on three things: why you were refused, which council you're in, and how much time and money you're willing to spend. The data can help with all three.
The National Picture: One in Three Appeals Succeed
Across England, roughly a third of planning appeals are allowed by the Planning Inspectorate. That's the headline figure — and it's been fairly stable for years.
But a 33% success rate is a national average, and national averages are almost useless when you're making a decision about your property in your council. The real question is: what's the overturn rate for your specific council?
Why the Council Matters More Than the National Average
Across our dataset, appeal overturn rates vary enormously by council. This isn't random — it reflects real differences in how councils make decisions.
Councils with high overturn rates (over 40%) are, bluntly, refusing applications they shouldn't be. The Planning Inspectorate — which has no relationship with the council and no political pressure from local residents — looks at the same application and regularly disagrees with the council's decision. If your council falls into this category, an appeal is a genuinely viable option.
Councils with low overturn rates (under 20%) are generally making defensible decisions. When these councils refuse an application, the Inspectorate usually agrees. If your council rarely loses appeals, the odds are stacked against you, and redesigning may be the smarter move.
The councils in between — with overturn rates around 25–35% — are a judgement call. This is where the specific reasons for your refusal matter most.
Check your council's appeal overturn rate →
How the Appeal Process Works
If you've never been through a planning appeal, here's what to expect.
- Deadline to appeal: 12 weeks for householder applications, 6 months for all other types, from the date of the decision notice
- Cost to lodge: Free. There is no fee to submit an appeal to the Planning Inspectorate
- Written representations (most householder appeals): 3–5 months from submission to decision
- Hearing (more complex cases): 5–8 months, with a face-to-face session
- Public inquiry (major developments): 9–12+ months, with legal representation
- Site visit: The inspector will almost always visit your property
The process is straightforward on paper. You submit your appeal online through the Planning Inspectorate's portal. You write a statement explaining why the council's decision was wrong, referencing planning policy. The council responds with their statement. The inspector reviews both, visits the site, and makes a decision.
In practice, the quality of your appeal statement is everything. A well-argued case that directly addresses each refusal reason and cites relevant policy gives you the best chance. A vague "I disagree with the decision" does not.
When Appealing Makes Sense
The data suggests appealing is strongest when several conditions are met:
Your council has a high overturn rate. If the Inspectorate regularly overturns your council's refusals, the odds are more favourable. This is the single most important factor.
The refusal reasons are subjective. Reasons like "out of character with the area" or "overbearing impact" are matters of judgement where an independent inspector may disagree. Reasons like "exceeds the maximum ridge height in Policy DM12 by 800mm" are objective facts that an inspector is unlikely to overturn.
You have precedent nearby. If similar extensions have been approved on your street or in your ward, that's powerful evidence that the council's refusal of yours is inconsistent. Inspectors pay close attention to precedent.
The officer recommended approval but committee refused. This is one of the strongest positions for an appeal. If the council's own professional officer recommended approval, and elected members overruled that recommendation, the inspector will want to understand why. Committee overturns of officer recommendations have notably higher appeal success rates.
While lodging an appeal is free, most successful appellants hire a planning consultant (£1,500–£5,000 for a householder case). And the time cost is significant — 3–5 months minimum before you get an answer, during which your project is completely stalled. For many homeowners, that delay is the real cost.
When Resubmitting Makes More Sense
Appealing isn't always the best option, even if you feel the refusal was wrong. Resubmitting a revised application is often faster, cheaper, and more likely to succeed.
The refusal reasons are fixable. If the council said your extension is 500mm too tall, or your dormer overlooks a neighbour's bedroom window, those are specific problems with specific solutions. Fix them, resubmit, and you'll likely get approved. Trying to argue at appeal that 500mm doesn't matter is a harder fight than just lowering the roof.
Your council has a low overturn rate. If the Inspectorate rarely disagrees with your council, the odds at appeal are poor. Redesigning to address the council's concerns is the path of least resistance.
The planning officer offered guidance. Many refusal notices include hints about what would be acceptable. Some officers will even tell you informally what changes would lead to approval. If you have that guidance, use it. A resubmission that directly addresses the officer's concerns has a very high success rate.
Speed matters to you. A resubmission takes around 10–12 weeks total (a few weeks to revise drawings, plus the 8-week determination period). An appeal takes 3–5 months minimum, and you can't start work until it's decided. If your builder has a slot in four months, resubmitting gets you there; appealing probably doesn't.
- If you resubmit within 12 months of a refusal for the same site, the application fee is waived — you pay nothing
- The revised application should directly address every refusal reason listed on the decision notice
- Talk to the case officer before resubmitting — most will tell you what changes would satisfy them
- A well-targeted resubmission has a significantly higher success rate than the council's general approval rate
The Third Option: Appeal and Resubmit
There's nothing stopping you from doing both simultaneously. You can lodge an appeal against the refusal while also submitting a revised application that addresses the council's concerns.
This is a legitimate strategy. If the revised application gets approved, you withdraw the appeal. If the revised application is also refused (or takes too long), you still have the appeal running. It costs more in professional fees but eliminates the time penalty of doing one after the other.
The risk is that the council may use your revised (compromised) submission as evidence at appeal that you accepted their concerns were valid. Discuss this with a planning consultant before pursuing both routes.
What Happens at the Appeal
Most householder appeals are decided by written representations. There's no hearing, no courtroom, no face-to-face confrontation. You submit your statement, the council submits theirs, and an inspector reads both and visits the site.
The inspector is an independent planning professional appointed by the Secretary of State. They have no connection to your council and no relationship with your neighbours. They assess the application purely on planning merit — does it comply with policy, and if not, are there material considerations that outweigh the policy conflict?
The site visit is usually unaccompanied for householder appeals. The inspector walks around the outside of your property and the surrounding area, takes photos, and forms their own view of the site context. You don't need to be there.
The decision letter arrives by email, typically 2–4 weeks after the site visit. It will either allow the appeal (granting planning permission, possibly with conditions) or dismiss it (upholding the council's refusal). The inspector's reasoning is set out in detail.
What Makes a Strong Appeal Statement
The appeal statement is your case. It needs to be persuasive, specific, and grounded in planning policy. Here's what the strongest ones include:
Address every refusal reason individually. Take each reason from the decision notice and explain why you believe it's wrong. Don't skip any — the inspector will consider them all.
Reference specific policies. If the council says your extension harms the character of the area, cite the specific local plan policy they're relying on and explain why your proposal actually complies with it. Generic arguments don't work; policy-specific arguments do.
Use precedent. If similar extensions have been approved nearby, list them with application references. This is among the most persuasive evidence you can provide. It shows the council has approved comparable development and is being inconsistent in refusing yours.
Include photos. Photos of the street scene, the site, and comparable approved extensions tell the inspector what words can't. A photo of four identical dormers on your street is worth more than three paragraphs explaining that dormers are in keeping with the area's character.
Know Your Odds Before You Decide
Your Pro Report includes your council's appeal overturn rate, comparable approved and refused applications near your property, and extension-by-extension analysis. The data you need to make the appeal-vs-resubmit decision.
Get Your Report — £79 →Costs: What You'll Actually Spend
The appeal itself is free. But realistically, here's what the full process typically costs:
DIY appeal (written representations): £0 in fees. Your time writing the statement, gathering precedent, and taking photos. Viable for straightforward cases where the refusal reasons are clearly weak.
Planning consultant for a householder appeal: £1,500–£5,000. They'll draft the appeal statement, gather policy arguments, identify precedent, and present the case professionally. This is the most common approach for homeowners.
Hearing with professional representation: £3,000–£8,000+. Includes preparation plus attendance at the hearing. Usually only worthwhile for larger or more complex proposals.
Compare this to a resubmission: £0 in application fees (within 12 months), plus whatever your architect charges to revise the drawings (often £500–£1,500). In most cases, resubmitting is significantly cheaper.
The Decision Framework
When you're staring at a refusal notice, ask yourself these questions in order:
1. Are the refusal reasons fixable? If yes, redesign and resubmit. It's faster, cheaper, and has better odds. Talk to the case officer first.
2. Does your council have a high appeal overturn rate? If your council regularly loses appeals, the Inspectorate clearly thinks they're being too restrictive, and your odds improve. If they rarely lose, the system is working against you.
3. Do you have strong precedent? If identical extensions have been approved on your street, you have a compelling case for inconsistency. This is powerful at appeal.
4. Was the officer overruled by committee? If the officer recommended approval and the committee refused, you're in a strong position. Inspectors take note of this.
5. Can you afford the time? Appeals take months. If time is critical, resubmit. If you can wait, and conditions 2–4 above are in your favour, appeal.
Before You Decide
A refusal feels personal, but it's a planning decision — and planning decisions are based on data, policy, and precedent. The more you understand about how your council makes decisions, the better equipped you are to respond.
Check your council's appeal overturn rate. Look at what similar applications have been decided nearby. Read the refusal reasons carefully and honestly assess whether they're fixable or arguable. Then choose the path that gives you the best odds with the least cost and delay.
That's not guesswork. That's strategy.
Free Postcode Check
See your council's approval rate, appeal outcomes, and comparable decisions near your property. Takes 10 seconds.
Check Your Postcode →Methodology: Appeal outcome data is drawn from individual planning application records scraped from 205+ UK council planning portals. Overturn rates are calculated from councils where appeal outcome data is available (primarily Idox-based councils). National appeal statistics are published by the Planning Inspectorate. PlanningLens provides statistical analysis and does not constitute planning or legal advice. Consult a qualified planning professional before lodging an appeal.