Why Does Planning Permission Get Refused? Common Reasons Explained

Planning consultant Nigel Taylor explains why planning applications are refused, the issues councils look for, and the steps you can take to improve your chances of success.

Key Facts

• Most planning applications in England are approved, subject to planning conditions.
• Planning officers assess applications against local and national planning policy.
• Making changes to the proposal often leads to approval.
• If your application is refused, you may be able to resubmit it or appeal to the Planning Inspectorate.
• You normally have three years to start work before planning permission expires.

Why Would Planning Permission Be Denied?

Planning permission may be denied if the proposal conflicts with planning policy or would have an unacceptable impact on neighbours, the local area, highways, heritage assets or the environment.

Planning officers assess every application against: 

• The Local Plan
• The National Planning Policy Framework (NPPF)
• Supplementary Planning Documents (SPDs)
• Material planning considerations, such as design, privacy, traffic, and noise
• Advice from organisations such as the Environment Agency, National Highways, or Historic England - if the proposal could affect flooding, roads, or heritage assets.

Planning officers also use professional judgement, especially when assessing design and how well a proposal fits its surroundings.

What Are The Most Common Reasons Planning Permission Is Refused?

The Proposal Conflicts With Local Or National Planning Policy

In many cases, the site’s location can be just as important as the design of the scheme itself.

Common examples include:

• Building outside settlement boundaries where development is not normally allowed
• Proposals that conflict with Green Belt planning rules
• Development in protected areas, such as Conservation Areas, National Parks, or National Landscapes (formerly AONBs)
• Proposals that conflict with the Local Plan or local design policies
• Development that could harm ancient woodland or other protected habitats.

Poor Design

This can include:

• Unsuitable appearance, layout, materials, or architectural style - for example, a design that does not respond well to its surroundings
• Poor layout that does not work well on the site - for example, creating awkward outdoor spaces or poor access
• A design that does not fit the character of the surrounding area - for example, a roof shape or scale that looks out of keeping with neighbouring buildings.

The Development Is Too Large Or Out Of Scale

Common examples include:

• A building that is too tall, wide, or bulky for the site
• An extension that dominates neighbouring properties
• A development that looks oversized compared with surrounding buildings.

Overdevelopment Of The Site

For example:

• Trying to fit too much development onto a plot
• Too little outdoor space for future occupants
• A cramped layout with limited circulation.

Highway Safety And Parking Issues

These can include:

• Unsafe access to or from the site
• Poor visibility for drivers or pedestrians
• Increased traffic that could affect road safety
• Not enough parking for the size of the development.

Noise, Disturbance, And Other Amenity Issues

For example:

• Noise that could disturb neighbouring properties
• Increased odours, pollution, or other nuisance.

For some developments, the council may require a noise or air quality assessment.

Loss Of Privacy

Common examples include:

• New windows overlooking neighbouring homes or gardens
• Balconies or terraces that reduce privacy.

Overshadowing And Loss Of Light

For example:

• A development that blocks daylight or sunlight to neighbouring properties
• Large extensions or tall buildings that cast excessive shadow.

Larger or more complex proposals often need to include a daylight and sunlight assessment.

Harm To The Area’s Character 

This can include:

• A building that looks out of place in the neighbourhood because of its size, shape, materials or roof design
• The loss of important local features, such as trees, hedgerows, or historic walls.

Flood Risk

Planning officers may refuse an application if they believe there is an unacceptable risk of flooding.

Flood Risk Assessments are often needed for developments in Flood Zones 2 and 3, and for larger sites in Flood Zone 1.

Applicants need to show that the development will be safe, will not increase the risk of flooding elsewhere, and has suitable drainage. 

Ecology, Biodiversity, and Protected Trees

Common examples include:

• Removing a tree protected by a Tree Preservation Order (TPO)
• Disturbing protected species, such as bats or great crested newts
• Damaging important habitats, such as ancient woodland or hedgerows.

Applicants may need an ecological survey if the site affects protected species, important habitats, ancient woodland or trees protected by a Tree Preservation Order (TPO). 

Many developments must also deliver at least a 10% biodiversity net gain, unless an exemption applies. Applicants usually need to show how they will avoid or reduce any ecological impacts.

Impact On Listed Buildings And Conservation Areas

This can include:

• Alterations that remove or damage historic features
• Extensions that do not respect the age or character of the building
• Development that harms the appearance of a conservation area.

Applications affecting listed buildings or conservation areas often need to include a Heritage Statement.

Insufficient Supporting Information

This can include:

• Missing plans, drawings, or application forms
• Required reports, such as a Heritage Statement, Flood Risk Assessment, or Ecology Survey
• Inaccurate information.

The council cannot validate your application until all the required documents have been submitted. 

If you’re a small developer, learn about the most common planning application mistakes here.

Do Neighbour Objections Mean Planning Permission Will Be Refused?

No. Neighbour objections do not automatically mean planning permission will be refused. 

Planning officers only consider objections about planning issues, such as privacy, noise, traffic, road safety, or design. They do not take into account personal disagreements or property values.

Even if lots of people object, planning permission can still be granted if the proposal complies with planning policy.

How Can You Improve Your Chances Of Getting Planning Permission?

Design Around Planning Policy

Design your proposal around local and national planning policy from the outset.

Seek Pre-Application Advice

Pre-application advice is optional guidance from your local planning authority before you submit a planning application. It can save time, reduce costs, and lower the risk of refusal. Choose a site visit where available so you can discuss the site context and how the scheme fits the land.

Work With An Experienced Planning Consultant

A planning consultant can identify potential issues early, recommend the best approach, and manage the planning application on your behalf.

Consider Your Neighbours

Think about how your proposal could affect privacy, daylight, parking, and other neighbouring properties. 

Speaking to your neighbours before submitting your application can help address concerns early and reduce objections.

Work With The Planning Officer

If planning officers raise concerns, making changes to your proposal may improve your chances of approval. 

Further reading: Read our guide to creating a successful home application here.

What Happens If Planning Permission Is Refused?

Understand The Reasons For Refusal

Read the decision notice carefully to understand why your application was refused. This will help you decide what to do next.

Revise And Resubmit

Many applications are approved after changes are made to address the council’s concerns. This is often quicker and cheaper than an appeal.

Appeal The Decision

If you believe the decision was wrong, you may be able to appeal to the Planning Inspectorate.

Submit A New Application

There is no limit to the number of planning applications you can submit. Make sure a new application addresses the reasons for the previous refusal.

Common Planning Permission Myths

1) If Similar Development Has Been Approved Nearby, Mine Will Be Too

Every planning application is different. Site constraints, planning history, and local policies mean similar proposals can have different outcomes.

2) Planning Permission Is Guaranteed If I Follow The Rules

Following planning policy improves your chances, but it does not guarantee approval. Planning officers consider the proposal as a whole.

3) Planning Officers Can Refuse Applications For Any Reason

No. Planning officers must base their decisions on planning policy and explain the reasons in the decision notice

4) You Cannot Apply Again After A Refusal 

A refusal does not stop you from applying again. Many applications are approved after you make changes.

5) Hiring A Planning Consultant Guarantees Success

No planning consultant can guarantee approval. However, they can significantly improve your chances of success.

Looking For Help With A Planning Application?

Whether you’re planning a home extension, a new house, or need help with a planning appeal, our planning consultant Nigel Taylor can guide you through every stage of the process.

Nigel works from our offices in Canterbury and Tunbridge Wells. Call 01227 457 545 or contact him here.

Frequently Asked Questions

Why would planning permission be denied?
Planning permission is usually refused because the proposal conflicts with planning policy or has an unacceptable impact on neighbours, the local area, highways, heritage or the environment.

How likely is planning permission to be granted?
In England, around 87% of planning applications are granted. Your chances of success depend on the proposal, the site, and local planning policies.

What happens if a planning application is not decided within eight weeks?
If the council misses the deadline and you have not agreed to an extension, you may be able to appeal because no decision has been made.

What are the chances of winning a planning appeal?
It depends on why the application was refused and the strength of your case.

How many times can you submit a planning application?
There is no limit, but each new application should address the reasons for the previous refusal.

What is the 10-year planning rule?
The 10-year rule means councils usually have up to 10 years to take action against certain unauthorised development. If they do not take action within that time, you may be able to keep the development, although the rule does not apply in every case.

What is the 4-year rule?
The 4-year rule used to mean that some unauthorised building work became lawful after four years. In England, it has now largely been replaced by a 10-year rule, although it can still apply to some older developments.

How long does planning permission last?
Planning permission usually lasts three years, during which development must begin.

Can planning permission be refused after pre-application advice?
Yes. Pre-application advice is informal and not legally binding, so it does not guarantee approval.

Can you build if planning permission has been refused?
No. You need planning permission, a successful appeal, or an approved revised application before work can begin.

How can you overcome planning objections?
Address the council’s concerns by amending your proposal and providing any extra information they ask for.

Does hiring a planning consultant improve your chances?
Professional advice cannot guarantee approval, but it can help you spot issues early and submit a stronger application.