A single level guest sleep-out with a mezzanine bedroom space, incorporating passive solar design. The eastern half of the ground floor is exposed concrete which stores warmth from the lower winter sun through north facing glazing for release during the evening. 140mm wall framing allows for R3.4 Ecofleece wool/polyester insulation. A north facing deck with cantilevered glass balustrade provides a sunny but sheltered outdoor area. The exterior walls are clad in stained timber rusticated weatherboards and the roof in trapezoidal Colorsteel. Abodo Rhombus RHB battens were used for the subfloor cladding.