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How long does it take to get planning permission? 8 or 13 weeks?

Want to know how long the council has to decide on your planning application? We outline the official timescales (and how much time it might actually take)

18 January 2025
3 minutes read
Large printed paper calendar lying on a white countertop, held together by a small wooden peg and loose metal paper clips on the side of the large January bold lettering

One of the most common questions we get from landlords in London is "How long does it take to get planning permission in London?"

So what’s the answer?

Most planning applications should be decided within 8 weeks, unless they are complex.

Let’s look at the planning application timeline in detail...

When will I get a decision for my planning application?

8 weeks if...
Household and minor planning applications are meant to be decided within 8 weeks.

13 weeks if...
Large or controversial developments are meant to be decided within 13 weeks.

16 weeks if…
If an application is subject to an Environmental Impact Assessment, it is meant to be within 16 weeks.

How planning officers assess planning applications

Applications are assessed in two parts, externally and internally. Both parts of the planning permission process should take up to 4 weeks each, beginning with the external discussion.

The external discussion allows your application to be seen by individuals or companies, such as your neighbours and utility companies. They can add comments and either approve or complain about your application, which may or may not be taken into account by the planning officer.

The second part, is where your application is viewed internally by a planning officer. The officer will research the area and how the development will fit in, alongside the external comments.

They will also have meetings with other planning officers for additional comments on the project. The planning officer will then go over the application again with the research and comments to make a decision on the application.

The decision will be either allowed or refused.

If your application is allowed, then all is well! You will join successful landlords or homeowners.

If your application is refused, and you do not agree with the reasons for refusal, you can submit an appeal.

An appeal is sent to the Planning Inspectorate. Planning appeals have no fixed deadline but generally take around six months. The Planning Inspectorate is separate from all local planning authorities and will check your application thoroughly to decide if the planning officer’s decision is reasonable or unreasonable.

What if I receive an enforcement notice?

Different timescales apply where the development is also the subject of an enforcement notice.

If an enforcement notice has been served within two years of the application being submitted or is served before the time period for determining the application has expired, the time limit to appeal is within 28 days of the determination date.

If an enforcement notice is served after the application’s date for determination, the time limit is 28 days from the enforcement notice served date, unless this would extend the period beyond the usual time limit for cases not involving an enforcement notice

A word of caution: DO NOT commence the development proposed before you get planning permission otherwise you may need to apply for planning permission retrospectively.

It is also important to note that applications for approval under the Building Regulations are dealt with separately from applications for planning permission, and the passing of plans under the Building Regulations in no way implies approval under the planning act. 

How Urbanist Architecture can help you 

Urbanist Architecture is a London-based RIBA chartered architecture and planning practice with offices in Greenwich and Belgravia. With a dedicated focus in proven design and planning strategies, and expertise in residential extensions, conversions and new build homes, we help homeowners to create somewhere they enjoy living in and landowners and developers achieve ROI-focused results.

If you want to win the planning permission you need without worrying about being rejected, contact us now. We'd be happy to help.

Nicole Ipek Guler, Charted Town Planner and Director of Urbanist Architecture
AUTHOR

Nicole I. Guler

Nicole leads our planning team and specialises in tricky projects, whether those involve listed buildings, constrained urban sites or Green Belt plots. She has a very strong track of winning approval through planning appeals.

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