Research and analysis

Cost-benefit of sustainable drainage system (SUDS) retrofit in urban areas

This report looks at a cost benefit analysis of a small number of sustainable drainage options that could be retrofitted in urban areas.



The report analyses the benefits of retrofitting sustainable drainage system (SUDS) such as less urban run-off into the sewer system and less run-off load at sewer overflows and sewage works which, in many urban centres, are already near full capacity.