A decking project could require planning permission. It depends on where you live, the size of you proposed decking and whether you have extensions on your property already. For example, decking that is being added to a listed building or a property based within a conservation area may require planning permission. Also, if the height of the proposed deck exceeds 30cm, or if the deck, along with other extensions takes up more than 50% of the garden then planning permission will be required. We recommend speaking to your local planning officer before starting any decking project.