As Passive House designers in Australia, we create healthy, high-performance homes that respond to climate, comfort and long-term building performance. The shift toward sustainable living is no longer a niche trend but a fundamental requirement for modern housing. According to recent industry data, the demand for energy-efficient dwellings has surged, with more homeowners seeking designs that minimize environmental impact while maximizing indoor air quality. This article compares the leading prefabricated models from reimagined habitat to help you make an informed decision. (Contact passive house designer)
The KETO Project: Award-Winning Carbon Positivity
The KETO Project stands as a pinnacle of sustainable architecture. It is the winner of two national awards at the Design Matters National 2026 True Zero Carbon Challenge. This distinction highlights its exceptional performance in both the ACT Award category and the Best Materials Research Award. The design answers a rigorous question: can a home produce more energy than it uses and pay back the entire embodied carbon of its materials by 2050? (Correa Prefab Home Compact)
The KETO Project does not just meet this challenge; it beats it. The design reaches net zero carbon by 2048, two years ahead of the global target. This achievement is supported by a remarkably low upfront carbon footprint of just 170 tonnes for a whole family home. The structure utilizes carbon-storing timber, wood-fibre insulation, and a fully circular material palette.
Design and Layout
Spanning 190 square metres, including a single garage, the KETO Project is a double-storey home. The ground floor features a 108 square metre living area with a private master bedroom, ensuite, and private deck. The first floor offers 54 square metres of space, including three bedrooms, two bathrooms, and a powder room. Every living space faces north for passive-solar comfort, ensuring optimal thermal performance.
The home targets an air tightness rate of ≤0.6 air changes per hour, far exceeding the National Construction Code (NCC) maximum of 10. This level of airtightness, combined with triple-glazed uPVC windows, ensures a stable and healthy indoor environment year-round. Starting from $325,000 plus GST, the KETO Project represents a premium investment in long-term health and sustainability.
Net Zero Habitat: Flexible Secondary Dwellings
For those seeking versatility, the Net Zero Habitat range offers pre-designed, high-performance spaces. These homes are ideal for granny flats, secondary dwellings, AirBnB accommodation, or compact family homes. Developed using Passive House principles and prefabricated construction methods, these designs achieve a 10-star energy rating across most Australian climate zones.
The Net Zero Habitat models are designed to deliver exceptional comfort while using virtually no energy for heating and cooling. They are particularly suited for sites where space is limited or where a secondary income stream is desired. The flexibility of these designs allows them to adapt to various site conditions while maintaining the rigorous standards of Passive House certification.
Key Features
These homes utilize prefabricated construction methods to reduce build time and waste. The designs are optimized for local climate conditions, ensuring that thermal performance is maximized regardless of location. Whether you are looking to expand your family home or create a dedicated workspace, the Net Zero Habitat range provides a robust and efficient solution.
The Banksia Model: Compact Efficiency
The Banksia prefab home represents another option in the reimagined habitat portfolio. While specific square metre details vary by configuration, the Banksia model focuses on compact, efficient living. It embodies the same core principles of airtightness, superior insulation, and healthy ventilation found in the larger KETO Project.
This model is particularly effective for smaller blocks or for individuals who prioritize minimal environmental impact. The use of high-performance materials ensures that even in a smaller footprint, the home maintains a consistent internal temperature and air quality. The Banksia design is a testament to the fact that sustainable living is not limited to large-scale constructions.
Comparative Analysis of Key Metrics
To assist in your decision-making process, the following table compares the key attributes of the primary models available from reimagined habitat. This comparison highlights the differences in scale, performance, and intended use cases.
| Feature | KETO Project | Net Zero Habitat | Banksia Model |
|---|---|---|---|
| Primary Use Case | Full Family Home | Secondary Dwelling / Granny Flat | Compact Family Home |
| Size (Approx.) | 190 sqm | Variable | Compact |
| Energy Rating | 8+ Stars (NatHERS) | 10 Stars (Most Zones) | High Performance |
| Carbon Status | Net Zero by 2048 | Net Zero Energy | Low Carbon |
| Airtightness Target | ≤0.6 ACH | Passive House Standard | Passive House Standard |
| Starting Price | $325,000 + GST | Consult for Quote | Consult for Quote |
Key Takeaways
- The KETO Project won two 2026 True Zero Carbon Challenge awards, including the ACT Award.
- It achieves net zero carbon by 2048, beating the 2050 target by two years.
- The KETO Project has an embodied carbon of just 170 tonnes, which is remarkably low for a family home.
- Net Zero Habitat designs are ideal for granny flats and secondary dwellings, achieving 10-star energy ratings.
- All models utilize triple-glazed windows and wood-fibre insulation for superior thermal performance.
- The team includes one of the largest cohorts of Certified Passive House Designers in Australia.
- Consultations are limited to four complimentary sessions per month, valued at $200 each.
Frequently Asked Questions
What is the KETO Project?
The KETO Project is an award-winning, carbon-positive prefab home design by reimagined habitat. It is designed to produce more energy than it uses and repay its embodied carbon by 2048.
How does Passive House design improve health?
Passive House design ensures airtightness and filtered fresh air, which reduces allergens and pollutants. This creates a healthy indoor environment with stable temperatures and high air quality.
Are Net Zero Habitat homes suitable for rental income?
Yes, the Net Zero Habitat range is ideal for AirBnB accommodation or secondary dwellings. Their high energy efficiency reduces operating costs, making them attractive for rental purposes.
What is the starting price for the KETO Project?
The KETO Project starts from $325,000 plus GST. This price includes triple-glazed windows, insulated wall panels, and healthy wood-fibre insulation.
How many Certified Passive House Designers does reimagined habitat have?
reimagined habitat has one of the largest cohorts of Certified Passive House Designers in Australia, ensuring expert guidance throughout the design and construction process.
Can I get a free consultation?
Yes, reimagined habitat offers a free 30-minute design consultation. These sessions are limited to four per month and are valued at $200.
What materials are used in the KETO Project?
The KETO Project uses carbon-storing timber, wood-fibre insulation, and a fully circular, recycled material palette. This approach minimizes the environmental impact of construction.
Next Steps
Choosing the right home is a significant decision. To explore how these designs can fit your site and lifestyle, we invite you to register for a free 30-minute design consultation. During this session, we will discuss your goals, explore options for new builds or renovations, and identify opportunities to improve comfort and performance. Contact us today to secure your spot and begin your journey toward a healthy, sustainable home.