This latest Interpave publication on permeable paving brings together and updates knowledge from all the previous publications, linked to a range of case studies. It aims to help all those involved with the development process – including designers and developers, and planning, building control and adoption officers - understand concrete block permeable paving. It deals with legal as well as practical issues and explains the different systems and techniques available, and how they can be used to meet current demands. It considers statutory requirements, the planning process, overall design, long-term performance, costs and adoption issues.