Origins & Missions

Simon is President of the Sustainable Builders Alliance and co-host of The Sustainable Builders Yak podcast.

He is a registered builder and founder of Sustainable Homes Melbourne, which designs and builds beautiful, comfortable, and energy-efficient homes across Melbourne’s inner suburbs.

With over 25 years in the construction industry, and a qualified carpenter by trade, Simon is on a mission to help Australia catch up with the rest of the world in creating a low-carbon, and sustainable construction industry.

For over two decades Jeremy has been a Registered Builder, Energy Assessor and Director at multi-award winning sustainable design and build company Positive Footprints, where he has worked to show that energy efficient design and high performance construction is a cost effective option and can be a mainstream reality.

An educator, National Sustainability Awards judge, past Design Matters National director, and creator of the DMN True Zero Carbon Challenge, Jeremy is passionate about spreading knowledge on how to build better. A founding SBA director, Jeremy is lead writer for the SBA website and free industry resource, Roadmap to Net Zero Homes - a practical guide on how to design and build to achieve cost effective Net Zero outcomes.

Michael brings over 20 years of experience in custom home building, with a focus on quality, innovation, and practical sustainability. As founder and Director of Michael Limb Builders in coastal Victoria, he leads projects that combine craftsmanship with environmentally responsible design.

As a founding SBA Director, Michael is passionate about driving change in the industry by making sustainable building achievable, affordable, and impactful for builders and homeowners alike.

Hamish is a founding director of The Sustainable Builders Alliance, co-host of The Mindful Builder Podcast and a proud member of Passive House Australia.  

Through his work with the SBA, Hamish aspires to encourage other builders and tradespeople to build better performing, low carbon homes and be more mindful of the environment.

Jesse is the Managing Director of G-LUX Builders, an award-winning and leading Passive House builder in Melbourne. 

With a strong passion for teaching and helping others, Jesse is dedicated to improving building standards. As a founding SBA director he has made a commitment to help create a better future for his young family and more broadly, all Australian families.

As a registered builder and founder of I-SMART Building Group and founding SBA director, Brian has spent over a decade pioneering Passive House (Passivhaus) and better building practices in Western Australia. His mission is simple: to lead our industry toward healthier, low-carbon, sustainable, and cost-effective building solutions.

As a proud father of four incredible kids and husband to one amazing woman—Brian’s passion for family is the foundation of everything he does. It also drives his work: pushing for a better, more sustainable future in our building industry.

Michael is a Melbourne-based builder, carpenter, and certified Passive House Tradesperson with over 20 years’ experience in residential construction. 

As Director of Aligned Building, he specialises in delivering low-energy, sustainable, and healthy homes. 

Michael is passionate about reducing carbon and waste, creating all-electric, comfortable, healthy, and efficient homes, and achieving great design. As a founding SBA director, he applies this hands-on expertise to help educate and inspire builders across Australia—sharing best-practice methods, promoting ethical material choices, and advocating for a more sustainable future in the residential building industry.

With a strong foundation in operations, marketing, and business leadership, Bec plays a defining role in ensuring that SBA lives up to its mission—empowering builders, designers, and industry professionals to build net zero, high-performing, sustainable homes with confidence. She spends much of her time working closely with SBA’s sponsors and members to create meaningful value and strengthen partnerships, ensuring the organisation continues to deliver practical benefits across the industry.

Prior to joining SBA, Bec co-founded the education startup ArchiBiz, where she worked closely with small architecture practice leaders to strengthen their businesses. She holds a Bachelor of Commerce and has also studied Environment and Sustainability Management, combining her business acumen with a deep commitment to sustainable outcomes.

Ashley is a marketing and content professional with over a decade of experience helping brands and organisations connect with communities through creative storytelling, design, and strategic campaigns. She has worked across diverse industries — from global outdoor and lifestyle brands to local start-ups.

Driven by a passion for design and sustainability, Ashley brings both creativity and purpose to her work. She thrives on finding ways to communicate complex ideas in clear, engaging ways that inspire action, with a focus on low-carbon building and meaningful community engagement.

Outside of work, Ashley loves exploring new places through travel, keeping active with long runs, and spending time with her energetic Golden Retriever, Gunnar, who often joins her on the trails.