Bermuda is a small but densely populated island. The extension of the King Edward memorial Hospital required an intelligent building with efficient use of water and energy and resilient to heat and high winds.Landscape plays an important role in the sustainability credentials of the building through recovery of topsoil and site vegetation for use in the healing gardens. The building will incorporate green roofs, the first in Bermuda, to reduce reflected heat from roof surface and to protect roof membranes from flying debris during hurricanes. The vegetated roof assemblies have been designed to resist lifting during high winds and use substrates manufactured from local limestone and composted waste.