Hospital Estates Departments with experience of Sustainable Drainage Systems are invited to share their experience in a new study. The Greater London Authority is working with the Construction Industry Research and Information Association (CIRIA) to develop good practice guidance on the better management of rainwater for buildings and their surrounding estates. Sustainable drainage comes in many forms, from rain gardens, swales and wetlands to permeable pavements. The guidance will showcase what can be achieved, highlight the benefits and offer practical advice. The survey link is here. An overview of the project can be found here.