3.6.3 Permeable paving
Permeable paving is an effective tool for reducing surface water runoff that can be easily integrated into any street. However, it is not appropriate everywhere and needs careful specification and detailing. It must only be adopted in certain circumstances such as key town centre sites or in heritage settings.
Permeable paving should not be laid over any existing or proposed services. Service strips and trenches should be created using non permeable paving to accommodate services.
Permeable paving could be used in parking bays and parking courtyards. If used in parking bays on the street, the impermeable carriageway can be designed to shed water to the parking bays, reducing the need for positive drainage, such as gullies.
Permeable paving must not be used in any streets which will be put forward for council adoption.
