Exterior, Flat, Beach House, Metal, Glass, Tiny Home, Metal, and Wood Completed in just six weeks by Australian practice Archiblox, this modest prefab home is perched atop cliffs with prime views of Avalon Beach, just a short drive away from Sydney. Oriented east to west to maximize cross ventilation, the house is clad in marine-grade Colorbond Ultra steel and Queensland blue gum to protect against the elements.  Best Exterior Metal Wood Flat Tiny Home Photos from A Dramatic Cliffside Prefab Steps from the Beach in Australia