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Do I need planning permission for decking?

Free 30-second checker – answer a few quick questions.

Question 1

Where is the property?

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The rules in plain English

Decking is usually allowed without planning permission if no part of it is more than 30cm above the ground, and decking plus other outbuildings and extensions don't cover more than half your garden.

Frequently asked questions

How high can decking be without planning permission?

No part should be more than 30cm above the ground.

Does decking count towards the 50% rule?

Yes. Decking, sheds, outbuildings and extensions together must not cover more than half the garden.

What about raised decking on a slope?

Height is measured from the ground below, so raised decking on a slope often goes over 30cm and needs permission.

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