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2021 HIA Australian GreenSmart Renovation / Addition Project
Winner: McArdle Projects, South Australia
A dilapidated 1920s cottage has been transformed by McArdle Projects into an all-electric home. The renovation improved the performance of the existing building and is complemented by a modern extension employing passive solar design and thermal mass.
The clever design and meticulous construction resulted in energy savings, water efficiency and a more comfortable, healthy home.
McArdle Projects reallocated rooms to improve zoning opportunities, along with retrofitting insulation and replacing old, leaky, single-glazed timber framed windows with high performing double glazed uPVC units. A lean-to at the rear of the cottage was removed and replaced with a lightweight-clad extension to make use of the block’s orientation, while increasing the overall size to better accommodate a family of five.
The extension features a main living pavilion with extensive northern glazing allowing for solar gain in winter and strategic use of an internal recycled brick wall for thermal mass. The home maintains a comfortable inside temperature year-round with minimal use of mechanical heating and cooling.
The all-electric home includes a solar PV system, energy efficient lighting and appliances, including an induction cooktop and heat pump hot-water service.
Australian GreenSmart Renovation/Addition Project finalist
- Indepth Building Solutions and Light House Architecture & Science (ACT & Southern NSW)