AlterecO2: Sustainable, Passive House Design for Healthy Living

AlterecO2 is a forward-thinking initiative by Altereco Design, a boutique building design studio passionate about efficiency, sustainability, and smart, practical homes. We’re proudly Passive House (Passivhaus) accredited and love teaming up with health- and future-conscious individuals who want homes that go beyond the usual—designed to meet the urgent needs of our climate while supporting the health of the people who live in them.

Born from a blend of smart design ideas and frustration with the limits of current building standards, AlterecO2 offers a collection of beautiful, pre-designed homes. Our mission? To make the design and build process simple and accessible—so you can enjoy a high-performance, sustainable home without compromising on quality, functionality, or care for the environment.

We believe homes should be built with purpose—not just to shelter, but to support wellbeing, protect the planet, and connect us to place. Every home in our series is designed using Passive House principles, with the option to be detailed for full certification if that’s your thing—ensuring exceptional comfort, health, and energy efficiency.

Sustainability is at the heart of every decision we make; we're meticulous about the materials and products we specify, prioritising durability, responsible sourcing, and low-toxicity for healthier living environments. We also celebrate and acknowledge our connection to the land—each of our homes is named after an endangered Australian animal, highlighting the impact of development on native habitats. As part of this commitment, we donate a percentage of our profits to Bush Heritage Australia to help protect and restore biodiversity.

AlterecO2 puts you in control to create a high-performance, sustainable home—your way. Whether you're after a ready-to-go design or want to personalise your finishes, our offering flexes to suit your preferences and project goals. Choose from a range of thoughtfully designed AlterecO2 home packages, with options for standard or premium finishes. You can mix and match between schemes to create a home that feels just right—without the fuss of starting from scratch.

You can also select the pathway that matches how much guidance and support you want from our team—from self-directed to fully collaborative. Our digital-first approach ensures a transparent, efficient experience, with clear documentation and support at every stage.

No matter which route you take, your home will be designed for comfort, energy efficiency, and long-term value—something future-you will thank you for. All created with healthy materials and thoughtful, responsible building practices. Wherever you’re starting from, AlterecO2 offers a flexible path to a home that reflects your values and vision.