How long does planning permission take?

Eight weeks from validation for a householder application in England, thirteen for a major development, and sixteen where an environmental impact assessment applies. Validation is the trigger rather than submission, so an incomplete application has not started the clock. If the authority misses its deadline you gain a right of appeal against non-determination, and if you choose not to appeal, your fee is refunded at 16 weeks.

That refund is worth £548 on a householder application and almost nobody mentions it.

The eight weeks starts later than you think

The statutory period runs from validation, not from the day you pressed submit.

An application is validated once the authority is satisfied it has everything required: the forms, the fee, the correct plans at the correct scale, the ownership certificates, and whatever local validation list applies in that borough. Anything missing and it sits unvalidated while you are asked for it.

Local validation requirements vary, which is why the same drawings can be accepted in one borough and queried in the next. We could not find a centrally published figure for how long validation typically takes, and it is not a statutory period, so treat it as a variable of unknown length rather than a week you can budget.

The practical consequence: the single most effective thing you can do to shorten the process is submit a complete application. Not a faster one, a complete one.

The statutory periods

For a renovation you are almost always in the first row.

Extensions of time, and why to agree one

The authority can ask you to agree an extension of time. It has to be in writing and it has to set out the timescale within which a decision is expected.

Agreeing is usually the right call. The alternative is a decision made on whatever the case officer has in front of them at week eight, which on a contested application is a refusal. A refusal costs you the fee, the time, and the momentum, and puts you into an appeal or a resubmission.

The judgement to make is whether the extension is buying a better outcome or just absorbing a backlog. A case officer asking for three more weeks to resolve a neighbour objection is buying you something. One asking for an open-ended extension with no explanation is not, and the request has to state the expected timescale, so you are entitled to ask.

If the deadline is missed

Two things happen, and the second is the useful one.

You gain a right of appeal against non-determination. You can appeal to the Planning Inspectorate on the basis that no decision was made, rather than waiting.

If you do not appeal, the fee is refunded. For a non-major application the refund point is 16 weeks from validation, and for a major application 26 weeks. On a householder application that is £548 back.

Very few homeowners know this and fewer claim it. If your application has drifted well past eight weeks, it is worth asking the authority directly about the refund position rather than assuming the delay is simply something you absorb.

There is also a planning guarantee framework operating on the same 26 and 16 week logic, with appeals expected inside 26 weeks.

Refusals and appeals

If you are refused, you have six months from the date of the decision letter to appeal in England, on the current GOV.UK guidance. Older guidance referred to a shorter householder window, so check the date on whatever advice you are reading.

Worth knowing that the appeals regime changed on 1 April 2026, with separate procedural guides now in operation. If you are appealing, make sure the guidance you are following is the current one.

An appeal is not the only route. A refusal usually comes with reasons, and where those reasons are addressable, a revised application is often faster than an appeal. There is also a free go: where an application is refused, a resubmission of substantially the same scheme within twelve months can be exempt from a further fee, which is worth asking the authority about before paying twice.

The realistic end-to-end timeline

Eight weeks is the statutory period, not the project timeline. On a real renovation the sequence looks more like this.

That last row catches people. A conditional approval is not a permission you can build from until the conditions are discharged, and discharging them is its own application with its own clock.

Then there is everything that is not planning at all. Building regulations run separately, and where a party wall notice is needed the notice period is two months for work to a party wall under section 2, or one month for excavation under section 6. Our guide to how the party wall clock works sets out which applies.

Budget six months from first drawing to being clear to start on a project needing planning permission, and be pleasantly surprised rather than caught out.

How to make it faster

Four things genuinely help, and one of them is not what people expect.

Submit a complete application. The most common cause of delay is validation, not determination.

Check the local validation list first. Every authority publishes one. Reading it before you submit is free.

Consider a Lawful Development Certificate instead. If your work might already be permitted development, a certificate for a proposed use costs £274 for a single house, half the £548 application fee, and it produces a formal decision you can show a buyer. Our guide to what planning costs sets out where that sits against the alternatives.

Use prior approval where it applies. For a larger home extension, the prior approval route costs £249 and runs on a 21-day neighbour representation period with deemed consent after 42 days, disregarding public holidays. It is materially quicker than a full application, and it is unavailable on article 2(3) land such as a conservation area.

What does not help is chasing. Case officers work to a caseload, and a polite email at week six asking whether anything is outstanding is more useful than three at week two.

Three years, then it lapses

Permission granted in England lasts three years under section 91(5) of the Town and Country Planning Act 1990, and you need a material start within that window. Digging foundations counts. Obtaining quotes does not.

If a permission is heading towards expiry and the project has slipped, that is a conversation to have before it lapses rather than after, because a fresh application means a fresh determination against whatever policy applies then.

How Beams helps

Planning delays a project at the front, visibly, and every week of it sits between you and a start date.

So we get the design to application standard before submitting rather than iterating through validation queries, check the local list, use prior approval or a certificate where either is quicker, and sequence structural design after the planning outcome rather than alongside it, because a condition on height or materials changes what you are building.

That is part of how a Beams project is planned: one agreed price, payments released against milestones, and 12 months on the workmanship.

Common questions

How long does a householder planning application take?
Eight weeks from validation. Validation itself is not a statutory period and depends on whether your submission is complete.

What happens if the council does not decide in eight weeks?
You gain a right of appeal against non-determination, and if you do not appeal, your fee is refunded at 16 weeks for a non-major application.

Should I agree an extension of time?
Usually yes, provided the request states the timescale, which it must. Refusing tends to produce a decision on incomplete information, and on a contested application that means a refusal.

How long do I have to appeal a refusal?
Six months from the date of the decision letter, on current GOV.UK guidance. The appeals procedure changed on 1 April 2026, so check you are following the current guide.

Does approval mean I can start work?
Only once any conditions are discharged, and only once building regulations are in hand, which is a separate consent with its own process.

Where this information comes from

Determination periods, validation as the trigger, extensions of time in writing with a stated timescale, non-determination appeals, and fee refunds at 16 and 26 weeks: GOV.UK planning practice guidance on determining a planning application, updated 8 April 2026, and the Town and Country Planning (Development Management Procedure) (England) Order 2015, article 34

Appeal deadline of six months from the decision letter, and the 1 April 2026 change to the appeals regime: GOV.UK guidance on appealing a planning decision

Fees, including £548 householder, £274 for a Lawful Development Certificate for a proposed use, £249 prior approval and £89 discharge of conditions for a householder: Ministry of Housing, Communities and Local Government planning fees indexation document, applying from 1 April 2026

Prior approval representation period and deemed consent: Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 1, Class A, paragraph A.4

Duration of permission: Town and Country Planning Act 1990, section 91(5)

Party wall notice periods: Party Wall etc. Act 1996, sections 3 and 6(5)

We could not find a centrally published figure for typical validation duration, or for pre-application advice charges, which are set locally. Neither is stated here. Planning differs in Wales, Scotland and Northern Ireland, and this page describes England.