The outline proposals are being informed by an assessment of flood risk constraints from fluvial sources, such as the Grace Dieu Brook (with the aim of refining the incorrect extent currently represented on the Environment Agency’s Flood map for Planning), but also from the drainage ditches crossing the site and potential external sources such as surface water runoff which may interact with the proposed development site.
A carefully integrated Sustainable Drainage System (SuDS) will be incorporated throughout the development, reflecting best practice in environmental design. Permeable paving, landscaped swales, rain gardens, and a series of attenuation basins would work together to capture, clean, and naturally manage rainfall across the site. Surface water would be released to local watercourses at the equivalent natural greenfield runoff rate, ensuring the development does not increase flood risk downstream. Beyond providing resilient drainage, these features create attractive landscaped spaces, support wildlife habitats, and contribute to a greener, healthier place to live.
The sustainable drainage system for the new neighbourhood will also provide biodiversity benefits through the provision of wetland habitat.