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Ovens & King Builders won HIA Australian GreenSmart Energy Efficiency for a Buffalo Creek home which showcases intelligent design and puts the focus on energy efficiency and sustainability in construction. It is the third time Ovens & King Builders have won this national category.
Low embodied carbon choices include cork flooring and hempcrete wall construction whilst an all electric build ensures the home is net zero ready. Heat Recovery Ventilation brings a constant flow of fresh air into the relatively airtight environment, allowing for exceptional indoor air quality and saving energy. A Photo-Voltaic power supply of 15 kw is a key component of this grid connected, true north facing home.
Overall, the exacting design incorporates all the aspects of a successful Passive House allowing the homeowner to enjoy a beautiful, sustainable home for many years to come. The category is partnered by Miele Australia.
Arden Homes won HIA Australian GreenSmart Display/Project Home, partnered by The Australian Reinforcing Company. Architecturally influenced, the expansive sun court is the centre of the design which allows natural flow, space and style, a theme continued throughout the home.
With features like R2.7 wall batts, R7.0 ceiling batts, and a 6kW solar PV system paired with a Soltaro battery, the home is designed for energy efficiency. Its high-performance thermal envelope—comprising of smart orientation, insulation, double-glazed windows, and superior air-tightness—ensures a stable indoor climate with minimal heating and cooling. Induction cooking, reverse-cycle heating and cooling, and a heat pump hot water service further enhance its eco-friendly credentials.
The 2024 HIA Australian GreenSmart Home – the highest accolade presented at the 2024 HIA Australian GreenSmart Awards – was won by 360 Building Solutions and Light House ArchiScience from ACT/SNSW for a house located in the heart of suburban Canberra. Oska’s House reimagines the classic red brick home, blending tradition with modern innovation. Using solar passive principles and NatHERS energy modelling, the floor plan was optimised to create a new family home with more functional space and better flow and connection.
Despite its relatively small footprint the home pays attention to the basics, showing what can be done with good design, good detailing and quality construction.
HIA Managing Director Jocelyn Martin said HIA Australian GreenSmart Awards recognise HIA members who deliver the latest in environmental design excellence and sustainable building practices.
“HIA is committed to sustainable building outcomes through environmentally focussed design, innovation and construction. Our commitment to recognise excellence has not altered over the 24 years the HIA GreenSmart program has been running. The winners and finalists are at the cutting-edge in their field and demonstrate expertise in building superior performing, energy-saving homes for their clients.
“Each winner and finalist is congratulated for achieving success at a national level,” concluded Ms Martin.
For images visit media.hia.com.au
View the Award winners feature
The Housing Industry Association (HIA) has welcomed the ACT Government’s decision to progress the Missing Middle Housing reforms. This is a critical step toward increasing housing supply and improving housing choice across Canberra.
The Federal Budget 2026 introduces the most significant structural changes to housing taxation in decades. As the implications of the Budget became a little clearer this week, HIA’s Chief Economist, Tim Reardon and I have put together this summary
HIA responded to the Consultation Paper on the Review of Australia’s Mutual Recognition Schemes for Workers which details the Council’s interim findings on barriers to a single national market for workers supported by the mutual recognition framework and triggers the second round of consultation associated with the review.
HIA provided this further submission to inform the Expert Panel’s first review of the Road Transport Contracting Chain Order made on 28 April 2026.