DECO Celebrates the 2025 Sustainability Award Winners
This year DECO was a proud sponsor of the 2025 Sustainability Awards, Australia’s leading program celebrating innovation in sustainable architecture.
Proudly supporting the Single Dwelling- Alteration category, which honours projects that transform existing homes through environmentally conscious design, DECO was excited to announce the winning project of this category – ‘Subtle Shift’ by Steffen Welsch Architects.
Subtle Shifts reimagined a suburban home by prioritising adaptability and multifunctionality within its existing footprint – delivering comfort, efficiency, and sustainability without building bigger.
Congratulations to Steffen Welsch Architects and all other 2025 Sustainability Award Winners on their outstanding projects, shaping the future of sustainable design and innovation.
Award Winners
Best of the Best
Best of the Best Sponsored by Autex Acoustcs: Breakout Creek / Purruna Pari Stage 3, TCL with Green Adelaide, City of Charles Sturt, and City of West Torrens
Editor’s Choice
Editor’s Choice Sponsored by James Hardie: Guulabaa — Place of Koala, Gensler
People
Emerging Sustainable Architect/ Designer Sponsored by Alspec: Gabrielle Pavicic, Green Building Council of Australia
Lifetime Achievement Sponsored by AWS: Professor Deo Prasad
Projects
Adaptice Reuse (Alteration/ Addition) Sponsored by Planet Protector Group: The Stopover, Taylor Buchtmann Architecture
Commercial Architecture (Large) Sponsored by Network Architectural: First Building – Bradfield City Centre, Hassell
Commercial Architecture (Large) Sponsored By Network Architectural: Northern Memorial Park Depot, Searle x Waldron Architecture
Commerical Architecture (Small) Sponsored by DuraCube: Crossroads Marrickville
Mackenzie Pronk Architects & Make Projects Partnership
Education & Research Sponsored by Wood Solutions: Woodleigh Regenerative Futures Studio, McIldowie Partners
Hospitality & Tourism Sponsored by Stormtech: The Silos Accommodation
Cooee Architecture
Interior Design Sponsored By GH Commerical: Boot Factory and Mill Hill Centre Precinct, Archer Office
International Design Sponsered by SAS Internal: Renovation and Extension of the Beaucastel Winery – Rénovation et Extension du Château de Beaucastel
STUDIO MEDITERRANEE & STUDIO MUMBAI
Landcape & Urban Sponsored by Dincel: Breakout Creek / Purruna Pari Stage 3
TCL with Green Adelaide, City of Charles Sturt, and City of West Torrens
Multiple Residential Dwelling Sponsored by Nero Tapware: The Paddock Cluster Housing Development, CROSBY architects
Public Buildings Sponsored by Supawood: First Steps Count Child and Community Centre, Austin McFarland Pty Ltd
Single Dwelling (Alteration/Addition) Sponsored By Deco: Subtle Shift
Steffen Welsch Architects
Single Dwelling (New) Sponsored by Billi: Canopy CLT House, Still Space Architecture
Innovation
Green Building Solution Sponsored by Cosentino: Powerhaus app, Powerhaus Engineering
Small Sustainable Practice Sponsored by Knauf: Environa Studio 1986
