Seagrove Estate

Environmentally-sensitive residential area

Seagrove is an environmentally-sensitive residential area, located in Cowes, Phillip Island, Australia. The 36.5 hectare site features rising land with views across the bay. Seagrove incorporates an extensive central wetland and rain gardens in every street as part of an integrated approach to water sensitive urban design.

The Seagrove Estate had no drainage outfall and a new outlet to Westernport Bay was required some 600 metres away. Westernport Bay is subject to the international Ramsar Treaty together with many other legislative requirements and it initially seemed impossible to obtain a new drainage outlet.

A team of environmental and civil engineers in collaboration with landscape architects were able to demonstrate an innovative approach to Best Practice water sensitive urban design.

Best practice was achieved with the use of the wetland together with appropriate bio-retention cells as part of the drainage network system. The project has many unique engineering solutions which we consider will become common practice as the development community evolves.