Marshalls Priora Permeable Paving helps housebuilders to include SUDs (sustainabledrainage systems) solutions within their development without giving land over tospace hungry “soft” SUDs such as ponds, wetlands and swales. Marshall says that with Priora, housebuilders do not have to choose between SUDsand development land as it is a dual-purpose system, “marrying attractive, durablehardstanding with proven, effective SUDs performance”.Some believe that …