The Torhaven Ephemeral Wetland project was undertaken to create a thriving and functional, living ecosystem that promotes and fosters a relationship between the community and environment. The project aimed to develop a unique ephemeral wetland and drainage system to artificially replicate natural filtering processes for treating stormwater runoff to best practice standards, while also retaining the aesthetic nature of the estate’s landscape. This incorporated the capture and detention of frequent stormwater flows from the development in a vegetated environment. By doing so, the system promotes natural processes of sediment settling, phosphorus absorption, nutrient uptake by plants, denitrification, natural UV disinfection and mineralisation.