As a publication, we are constantly in awe of the creativity and skill of architects who can bring their clients' visions to life. But it's even more impressive when architects can transform existing structures, some of which have been standing for decades or even centuries, into something fresh and new.

That's why we're excited to today highlight the Sustainability Awards' Single Dwelling (Alteration) category, which honours those who have successfully renovated or extended a Class 1a building by at least 50 percent of its original typology. This category is open to all design firms in Australia and rewards projects that balance usability with sustainability, tackling issues that relate to single dwelling homes.

Last year's winner, Pepper Tree Passive House by Alex Symes Architect, serves as an excellent example of what the category seeks to celebrate. Additionally taking out the Best of the Best category, the dwelling is situated on a steep site, elevated into the canopy of the site's 60-year-old pepper tree. 

Built to the international Passive House standard, the home's sustainability is embodied through its natural material palette, high performance design, and biophilic connection. The project's ambition was to do more with less, improving the existing home's thermal performance while creating a future-proofed refuge that can withstand peak temperature days.

This year, the Sustainability Awards are partnering with Deco for the Single Dwelling Alteration/Addition category. Deco is a major advocate for aluminium as a sustainable alternative to timber, wood composites, and PVC building products. 

Not only is recycling aluminium a more energy-efficient process than producing virgin aluminium, but it can also be recycled indefinitely without losing quality. In contrast, materials like plastic and timber are often downcycled, reducing their quality and limiting their uses with each iteration.

The 2023 Sustainability Awards promises to be an unforgettable event for the built environment industry, especially for those who prioritise sustainable principles in their designs. Winners for the Single Dwelling Alteration/Addition category and 14 others will be announced at a live ceremony in November later this year. Visit sustainablebuildingawards.com.au for more.