Kalakau is a highly engineered, cliffside architectural fortress in Forresters Beach. Bypassing standard rectangular floor plans, the home is designed as a series of six overlapping hexagons, resulting in a complex interior where almost no true 90-degree corner exists. Sitting on contiguous concrete piles driven 25 metres deep into the coastal sand dune, the structure aggressively cantilevers toward the Pacific Ocean. The rear lanai is supported by massive structural columns, specifically designed to mirror the sharp bow of a ship pressing into the horizon.

Building on this exposed cliff edge required navigating the absolute highest bushfire attack level (BAL FZ). This rating dictates that the home must withstand a direct, intense fire front for 30 minutes. To achieve this extreme level of resilience without compromising the modern aesthetic, we utilised highly technical material applications. We clad the upper level entirely in massive, three-millimeter-thick porcelain panels, maneuvering them into place with glass suckers over a complex, triple-waterproofed substrate. This application provides a dark, mottled architectural texture that is entirely non-combustible and immune to brutal coastal salt spray.

The roofline features deep cantilevers that terminate in sharp, acute-angled points. To achieve these flawless geometric returns, our carpentry team utilised Alucobond—an aluminum composite material. We manually scored the back of the sheets and folded them precisely to wrap the multi-angled 3D fascias without utilising visible mechanical fixings.

Executing this level of architectural detail across a heavily regulated BAL FZ site required several bespoke engineering solutions:

• Concealed flame zone integration – We installed ultra-slim Vitrocsa sliding doors and engineered custom tiled bulkheads to completely hide the heavy, motorized bushfire drop-blinds required for compliance.
• Automated coastal washdown – To combat heavy ocean salt spray, we plumbed a concealed network of copper pipes and brass fittings above the glazing. Hooked to an underground rainwater tank, this automated system blasts the facade twice a week to keep the glass crystal clear.
• Monolithic steel staircase – We utilised 3D laser scanning to map the complex angular void, chain-blocking massive sections of 12mm plate steel into the ceiling to be welded on-site. A painter then prepped and finished the steel in a high-gloss 2Pac polyurethane for a seamless finished.
• Hydronic climate control – Eliminating traditional air conditioning, we integrated hydronic water pipes throughout the floor slabs to provide radiant, consistent heating that pairs perfectly with the home’s natural coastal cross-ventilation.
• High-risk crane logistics – When dune erosion eliminated backyard access late in the three-year build, we utilised a massive crane to lift a 1.8-ton excavator entirely over the finished roofline to install deep screw piers and secure the retaining walls.

Kalakau proves that extreme environmental constraints do not have to dictate a sterile or industrial design. By merging commercial-grade fire engineering with flawless architectural finishes, we delivered a striking, hyper-resilient custom home built to dominate its Forresters Beach cliffside for generations.