How Long Does a Planning Application Take?

Most homeowners want a simple answer: how long will the planning application take?

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For many domestic projects, the usual answer is around 8 weeks from validation, but the real timescale can be longer once you include:

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• Preparing drawings

• Checking planning constraints

• Submitting the application

• Council validation

• Neighbour consultation

• Planning officer review

• Possible amendments

• The final decision notice

• Any planning conditions that must be dealt with afterwards

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GOV.UK says most planning applications are decided within 8 weeks, while unusually large or complex applications in England usually have a 13-week time limit. The Planning Portal also explains that the formal decision period begins after the application has been validated.

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The quick answer

 

A straightforward householder planning application usually takes:

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• 1 to 3 weeks to prepare drawings and application information

• 1 to 3 weeks for council validation, depending on the local authority

• 8 weeks for the formal decision period after validation

• Longer if the council requests changes, extra information or an extension of time

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So in practical terms, many homeowners should allow around:

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• 10 to 14 weeks from starting drawings to receiving a decision

• Longer for complex sites, conservation areas, listed buildings or change of use projects

• Longer again if structural, building regulations or party wall matters are also needed

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IMPORTANT POINT
The 8-week period usually starts when the council validates the application, not necessarily the day you submit it.

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Typical planning application timescales

 

For many homeowner projects, the usual council decision periods are:

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• Householder planning applications: around 8 weeks

• Minor applications: around 8 weeks

• Major applications: often 13 weeks

• Some complex or specialist applications: may take longer

• Applications with Environmental Impact Assessment: may have longer timescales

• Applications with amendments: may need extra time

• Applications going to committee: may take longer than delegated decisions

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Most domestic extensions, loft alterations, garage conversions and smaller homeowner applications are usually treated as householder or minor applications, but the exact route depends on the proposal.

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The planning application timeline:

 

1. Initial planning review

Before drawings are prepared, it is sensible to check:

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• Whether planning permission is needed

• Whether permitted development may apply

• Whether a Lawful Development Certificate would be better

• Whether the property is listed

• Whether the site is in a conservation area

• Whether there are Article 4 restrictions

• Whether previous extensions affect the proposal

• Whether the project may need building regulations as well

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This stage can often save time because it helps avoid submitting the wrong type of application.

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2. Preparing the drawings

Most planning applications need clear drawings.

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These may include:

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• Site location plan

• Block plan

• Existing floor plans

• Proposed floor plans

• Existing elevations

• Proposed elevations

• Roof plans where needed

• Sections where needed

• Design notes or supporting statements where required

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The preparation time depends on:

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• Whether a measured survey is needed

• Whether existing drawings are available

• The size of the property

• The complexity of the proposal

• How quickly the design can be agreed

• Whether supporting reports are required

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For a simple domestic project, drawings may be prepared quickly. For larger or more complicated projects, this stage can take longer.

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3. Submitting the application

Once the drawings and information are ready, the application can usually be submitted online.

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The submission may include:

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• Application form

• Ownership certificate

• Site location plan

• Existing and proposed drawings

• Supporting statement if needed

• Planning fee

• Any specialist documents requested by the council

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A good submission reduces the risk of validation delays.

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4. Council validation

Validation is the council’s initial check that the application contains the required information.

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The council may check:

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• Whether the correct application type has been used

• Whether the right plans have been submitted

• Whether the drawings are clear

• Whether the site plan is acceptable

• Whether the fee is correct

• Whether ownership certificates are completed

• Whether extra documents are required

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If something is missing, the council can make the application invalid and request further information.

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TOP TIP
Validation delays are common. A planning application may be submitted on Monday, but the 8-week decision period may not start until the council confirms it is valid.

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5. Neighbour consultation

Once validated, most planning applications go through consultation.

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This may involve:

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• Letters to neighbouring properties

• Site notices in some cases

• Conservation or heritage consultation

• Highways consultation

• Tree officer consultation

• Drainage or environmental consultation

• Internal council department comments

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For many householder applications, the neighbour consultation period is often one of the main parts of the 8-week decision process.

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6. Planning officer assessment

The planning officer will usually consider:

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• Local planning policy

• Design and appearance

• Scale and massing

• Impact on neighbours

• Privacy and overlooking

• Daylight and outlook

• Parking and access

• Conservation area impact

• Heritage issues

• Trees and landscape

• Planning history

• Consultation responses

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The officer may approve the application, refuse it, or request changes before making a decision.

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7. Amendments and extra information

Applications can take longer if the council asks for changes.

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This may happen where:

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• The design is considered too large

• The roof form needs adjustment

• Windows create overlooking concerns

• Materials need clarification

• Parking information is missing

• Heritage issues need more explanation

• Neighbours have objected

• The officer wants revised drawings

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Sometimes amendments are helpful because they can avoid a refusal, but they can also extend the overall timescale.

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8. Decision notice

At the end of the process, the council issues a decision notice.

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This will normally confirm whether the application is:

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• Approved

• Approved with conditions

• Refused

• Withdrawn before decision

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If approved, the decision notice may include conditions that must be followed.

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These can relate to:

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• Materials

• Construction hours

• Privacy screens

• Obscure glazing

• Landscaping

• Drainage

• Parking

• Details to be submitted before work starts

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Why planning applications get delayed

 

Planning applications are often delayed because of:

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• Missing drawings

• Incorrect application type

• Wrong fee

• Invalid location plan

• Incomplete ownership certificate

• Poorly prepared existing or proposed plans

• Conservation area issues

• Listed building issues

• Highways questions

• Tree protection concerns

• Neighbour objections

• Officer workload

• Requested design amendments

• Planning committee dates

• Extensions of time requested by the council

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A well-prepared application cannot guarantee a fast decision, but it can reduce avoidable delays.

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Does a planning application always take 8 weeks?

 

No.

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The 8-week period is the standard target for many smaller applications, but not every application is decided within exactly 8 weeks.

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A decision may take longer if:

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• The council has a backlog

• The application is complex

• The site has planning constraints

• Extra consultation is needed

• Amendments are requested

• The application goes to committee

• A legal agreement is required

• The applicant agrees to an extension of time

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The Planning Portal says most applications are decided within 8 weeks unless they are unusually large or complex, in which case the time limit is extended to 13 weeks.

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Can you speed up a planning application?

 

You cannot force the council to decide faster, but you can reduce avoidable delays.

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The best ways to help the application run smoothly are:

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• Check the correct planning route before applying

• Submit accurate drawings

• Use the correct application form

• Include the right certificates

• Pay the correct fee

• Include a clear description of development

• Address obvious planning issues early

• Consider neighbour impact before submission

• Respond quickly if the council asks for information

• Avoid changing the design halfway through the process

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For some complex projects, a paid planning consultancy review before submission can save time by identifying risk early.

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What if the council misses the decision deadline?

 

If the council does not issue a decision within the statutory period, the applicant may have options.

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These can include:

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• Agreeing an extension of time

• Waiting for the council decision

• Chasing the planning officer

• Escalating the matter within the planning department

• Appealing for non-determination in appropriate cases

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The Planning Portal explains that an appeal can be made if the local authority does not issue a decision within 8 weeks, unless the applicant has agreed in writing to extend the period.

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In practice, many homeowners choose to wait a little longer if the officer is actively working towards a decision, especially where an appeal would take much longer.

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How long should homeowners allow in real life?

 

For a typical domestic project, a sensible working allowance is:

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• 2 to 4 weeks for advice, survey, design and drawings

• 1 to 3 weeks for validation

• 8 weeks for council assessment

• 1 to 2 weeks for any final decision notice, conditions or follow-up

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So a realistic planning stage can often be:

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• Around 10 to 14 weeks for a straightforward householder application

• Around 12 to 18 weeks where validation or amendments are slow

• Several months for more complex projects, listed buildings, conservation areas or change of use

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This is why it is usually risky to book builders before the planning position is clear.

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Planning approval is not the end of the process

 

Even after planning permission is approved, you may still need:

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• Building regulations drawings

• Structural calculations

• Building control approval

• Party wall notices

• Thames Water or sewer build-over approval where relevant

• Freeholder or leaseholder consent

• Contractor pricing

• Construction drawings

• Discharge of planning conditions

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Planning permission deals with whether the development is acceptable in planning terms. It does not confirm that the work is structurally designed, buildable or compliant with building regulations.

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IMPORTANT POINT
Do not treat planning approval as permission to start building unless all other required approvals and conditions have also been checked.

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How PAS can help

 

Planning Application Services (PAS) can help homeowners prepare properly before submitting a planning application.

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We can help with:

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• Initial planning advice

• Checking whether planning permission is needed

• Reviewing permitted development options

• Advising on Lawful Development Certificates

• Preparing planning drawings

• Preparing supporting information

• Submitting planning applications

• Responding to validation requests

• Advising on amendments

• Helping you understand planning conditions

• Coordinating building regulations, structural and party wall support where needed

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The aim is to reduce avoidable delays and help you take the correct route from the start.

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When paid planning consultancy is useful

 

Paid planning consultancy is useful where you need a proper desktop review before spending money on a full application.

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It can help where:

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• You are unsure whether planning permission is required

• You need a faster view than waiting for council pre-application advice

• The project is in a conservation area

• The property is listed or near listed buildings

• You are considering a change of use

• You want to convert a property

• You are planning a new build

• You are dealing with an HMO or Airbnb proposal

• You have had a previous refusal

• You want to understand the likely planning route before instructing drawings

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PAS can usually give a practical view much earlier than the formal council decision process.

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Need to know how long your planning application may take?

 

If you are asking “How long does a planning application take?”, the best next step is to look at the actual project, not just the general timescale.

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The answer depends on:

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• The type of application

• The property

• The planning history

• The quality of the drawings

• The local authority

• Whether consultation issues are likely

• Whether amendments may be needed

• Whether other approvals are involved

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A clear planning review at the beginning can help you avoid wasted time later.

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Next Steps:

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Tell Us What You Need

Use our enquiry form to tell PAS about your property and the work you are considering.

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We can help you understand:

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• Whether planning permission is needed

• What type of application may be required

• How long the process is likely to take

• Whether permitted development or an LDC may be better

• What drawings or documents may be needed

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Planning Consultancy

Choose paid planning consultancy if you need a proper desktop review before committing to drawings, builders or applications.

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This is useful for:

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• Extensions

• Loft conversions

• Garage conversions

• New builds

• HMOs

• Airbnb use

• Property conversions

• Conservation area projects

• Complex or uncertain planning issues

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Plans and Drawings

If your project needs drawings, PAS can prepare clear planning drawings to support the application and reduce validation problems.

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Planning Applications

If planning permission is required, PAS can help prepare and submit the application and guide you through the council process.

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