Intriguing new dwelling formed almost entirely subterranean and designed to make minimal visual impact above ground, comprising only a car lift and access entrance within a modern sleek structure.
The sub structure was formed of permanent sheet piled walls set almost circular on plan, with a capping beam designed to ensure stability of the retaining walls in both the temporary and permanent conditions.
A series of temporary structural props were designed in the temporary condition to allow the embedded basement walls to be designed as economically as possible whilst ensuring the capping beam could be formed safely. Complex analysis was undertaken to verify the temporary and permanent conditions were stable.
The structure was formed in steel frame and cast in-situ concrete slabs, designed to accommodate the green roof which disappears within the landscape.