strengthen the design's horizontal openness within and extension outward onto sunny terraces. Seidler described the construction of the house as "solid, with muscle; everlasting." The construction of the house is of maintenance free materials, off formed concrete (inside and out) and basalt rubble stone. Three rows of vertical reinforced white concrete block piers support suspended and cantilevered concrete floors, and roof. The very long horizontal and sloping projections are stiffened by rail height parapets. The rough textured off form concrete contrasts with the rough textured blue grey basalt walling. The floors of the living areas are surfaced with split slabs of Norwegian quartzite stone and ceiling lined with Tasmanian oak boarding. Seidler plays off textures against each other, cool is juxtaposed with warm, smooth with rough, white with primary colours. The concrete masonry and glass of the house contrasted the precise geometry of its evident man made forms with the rugged complexity of its stony, sloping site. This house broke with the past in favouring board formed concrete and concrete block, permanent masonry in lieu of the Harvard timber idiom he pursued in the 1950s. Philip Drew has described this house as "a Brutalist "Falling Water", more American, more late Breuer in its strong forms, and Viennese in its will to permanence, in its hard Norwegian quartzite floors and determination to impose an aesthetic on the Australian bush." Instead of building a road on to the site, the Seidlers placed the garage and visitors' car park area at the top of the hill, directly off the street dramatically suspended over a large rock ledge which was left exposed. The house is set within a native landscape designed by the pioneering landscape architect, Bruce Mackenzie (b.1932) who provided the landscape design for a number of Seidler's projects. A swimming pool designed by Seidler was built below the house in the 1970s. The house is widely regarded as the most outstanding example in Australia of a house in the Brutalist style. It should however, be noted that Seidler strongly rejected this label and distanced himself from the Brutalists [Refer to Seidler's 1987 essay "Architecture and Planning at the end of our Century" published in "Four Decades of Architecture"]. The Royal Australian Institute of Architects awarded the house the coveted Wilkinson Award, the third won by Seidler in his then nineteen years of Australian practice. In a 1994 interview for Australian Broadcasting Corporation