Ready-to-go, sustainable homes designed for comfort, performance, and peace of mind

Born from both innovative design thinking and frustration with the limits of current building standards, AlterecO2 offers a collection of beautiful, pre-designed homes that make the process simple, accessible, and uncompromising on quality or environmental care.

Every home in our range is designed using Passive House principles, with the option for full certification, ensuring exceptional comfort, health, and energy efficiency. Sustainability drives every decision, from the durable, responsibly sourced, low-tox materials we specify to our celebration of Australia’s unique ecology—each design is named after an endangered native animal, a reminder of the impact development has on natural habitats. As part of our commitment, we donate a percentage of profits to Bush Heritage Australia to help protect and restore biodiversity. These homes are not just shelters—they are spaces built with purpose, designed to support wellbeing, protect the planet, and connect us to place.

AlterecO2 gives you the flexibility to create a high-performance, sustainable home your way. Whether you choose a ready-to-go design or tailor your finishes, our packages adapt to suit your style, budget, and project goals, with options for standard or premium finishes and the freedom to mix and match between schemes. You decide how much guidance you want from us—from self-directed to fully collaborative—while our digital-first approach ensures a transparent, efficient process with clear documentation and support at every stage. However you choose to build, your home will be designed for comfort, energy efficiency, and long-term value, created with healthy materials and thoughtful, responsible building practices.

Passive House Inner West, Melbourne