73 Bay Street 

This project comprised the extensive replanning and physical reconfiguration of an existing late twentieth century house of unremarkable character. The outstanding feature of the existing house was its location, with extensive views to Middle Harbour and a relatively large rear yard. The architect has unlocked the potential of the previously enclosed and compartmentalised house to take advantage of both the views and the amenity of the rear yard and connected both with light and airy open planned living areas on the ground floor, achieving a very liveable home suited to the needs of the owner’s family. The award winning rear garden provides a natural extension of the living areas that is private and has been treated in a manner that provides a beautiful contained outlook from within the house. The design has substantially improved the environmental performance of the house and utilised the bulk of the existing building fabric in a responsible manner. The renovated building sits very comfortably in the context of its neighbours and makes a substantial contribution to the built environment of Mosman.

Sustainability

• Alterations and additions to existing house minimise the extent of new building work
• Response to site orientation to maximise natural ventilation and daylight
• Material selections were minimised and locally sourced wherever possible
• Layout adaptable to provide a socially sustainable use for future occupants

Innovative sustainable design elements:

• Deep projected eaves over west-facing outdoor areas minimise solar heat gain
• Improved thermal performance with new glazing and window frames
• Rainwater storage for landscaping use
• Achieved targets of BASIX compliance for insulation, energy and water consumption

Environmental footprint of the building is minimised by:

• Predominantly retaining existing building footprint, emphasing landscape over built form
• Open plan layouts to promote natural cross ventilation and natural daylight
• Rainwater tanks installed to offset swimming pool and landscaping irrigation
• Updated electrical fittings and plumbing fixtures to the current standards