Partridge collaborated with Casey Brown Architecture on ‘Babylon,’ a remarkable residence west of Avalon Beach. Originally built in 1953, this four-level dwelling—known locally as ‘The Castle’—features stone and glass construction with living spaces arranged beneath a 320-square-metre kidney-shaped roof. Our involvement encompassed structural assessments, roof drainage, foundation stability, and sandstone wall integrity. We also engineered the cable car foundations, flying fox installations, stormwater and wastewater revisions, and a suspended carport slab on unstable terrain. The new bedroom wing required cantilevered slab sections to preserve tree root zones, while the carport integrated cantilevered Corten steel beams and a solar panel roof. Structural refinements included correcting bowstring truss loads in the free-span dining/living area. Overcoming these complexities ensured Babylon’s integrity while complementing its architectural vision.
