Currently, the construction of timber decks is considered under the planning and building control procedures that apply to the construction of private patios, terraces, and pool surrounds.

As such, deck structures are often considered to be exempt from planning regulations. This is not always the case. There are a number of specific instances where consent is required prior to building a patio, terrace or deck and these are set out below:

• Where the deck is situated within 20 metres of a highway.
• Where the deck is at 1st floor level or above.
• If any part of the deck construction exceeds 3m in height.
• If the structure would affect the amenity value or privacy of neighbouring properties.
• If the deck is attached to a listed building or situated in a conservation area or National Park.