Luigi Rosselli Architects objective to examine the relationship between human comfort and sustainability has been recognised with the Kirribilli house being awarded the 2011 NSW Australian Institute of Architects Housing Award for Sustainable Architecture. The client brief for the project was to provide a comfortable, responsible family house. Luigi Rosselli Architects took the view that ‘responsible comfort’ is not a question of good padding on the lounges, but should mean the ability of a building to provide a climatically comfortable environment – a place to seek refuge from the heat of the day or cold of the night – without having to barricade yourself behind sealed windows and mechanical interventions. The rammed earth walls and well located operable skylights; the sun drenched courtyard and the breezy verandah; the green roof and external shutters, all contribute to a most livable waterfront residence. The design was awarded as proof that sustainable solutions can be applied to the top end residential architecture without limiting human comfort.