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{{propApi.successMessage}} {{region}} Change locationWestern Australian builders win three national sustainable building awards
Western Australian builders win three national sustainable building awards
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Nulook Homes and Solar Dwellings won HIA Australian GreenSmart Display/Project Home and HIA Australian GreenSmart Energy Efficiency for a fully electric home. The categories are partnered by The Australian Reinforcing Company and Stegbar respectively.
Their winning Catalina 10-star NatHERS-rated sustainable home showcases the possibilities of ultra-efficient, all-electric housing. The home achieves 105% net zero performance through passive solar design principles, a 10kW PV array with battery storage, EV charging infrastructure and dual-plumbed greywater reuse.
Thermal performance is optimised via slab-on-ground construction, high thermal mass (locally sourced recycled bricks and rammed limestone), airtight building fabric and low U-value UPVC windows. Smart zoning and natural cross ventilation reduce the need for mechanical heating or cooling, while intelligent automation systems manage lighting, shading and energy consumption in real time.
Tallwood Custom Built Homes won HIA Australian GreenSmart Sustainable Home, partnered by ActronAir, for their Eco Barnhouse. Nestled within the Witchcliffe Ecovillage, the winning home stands as a beacon of sustainability within one of the world's most eco-conscious residential developments.
The innovative dwelling is a remarkable 140% carbon offset and achieves complete self-sufficiency in renewable energy and water resources. At its core, the home features a 10kw photovoltaic system connected to a central storage battery and the village microgrid, allowing excess energy to power electric vehicles or contribute back to the Western Power grid.
Progressive Building from NSW won the 2025 HIA Australian GreenSmart Home of the Year for a standout Sydney renovation which proves that uplifting existing housing stock can deliver big on sustainability, comfort and design.
With a focus on passive house principles, the renovation features all-timber construction, high-efficiency insulation, heat recovery ventilation, and solar system with battery integration. Smart energy monitoring systems respond dynamically to solar supply, enabling the home to run nearly off-grid.
Clipsal by Schneider Electric, partner of the HIA Australian GreenSmart Home category, are creators of home electrical products and solutions to enable technology for an ever-changing world.
HIA Australian GreenSmart Awards recognise the best in sustainable housing with Award winners and finalists making a positive difference to the environment by building energy efficient and comfortable homes.
HIA Managing Director Jocelyn Martin said the HIA Australian GreenSmart Awards set the benchmark for the latest in environmental design excellence and sustainable building practices.
“Consumer demand for practical, affordable and durable environmental solutions for residential housing is more evident now than ever before. Our GreenSmart Awards highlight HIA members who excel at delivering year-round comfortable homes into the market.
“We are dedicated to recognising excellence in environmentally focussed design, innovation and construction.
“Each winner and finalist is congratulated for achieving success at a national level,” concluded Ms Martin.
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