Prefab Passive House Designs
for standard block widths
Affordable Designs for Prefab Passive Houses
At Sunpath, we believe that everyone deserves the health, comfort, and energy efficiency of Passive House living — not just those with custom-designed homes.
That’s why we’ve developed a growing range of standard Passive House designs tailored for typical Victorian site sizes, including 12m and 15m-wide suburban blocks.
For rural and regional properties, we also offer a series of pavilion-style Passive Houses — ideal for acreage sites and off-grid living.
In all cases, we prioritise practicality, thermal comfort, and long-term value, while streamlining the process for our clients.
Working in close collaboration with a specialist SIPs (Structural Insulated Panels) prefabrication company, we’ve created a library of pre-designed, Passive House-certifiable homes that are compact, efficient, and cost-effective.
These homes use factory-built, airtight, and thermally efficient panels to ensure high-quality construction and rapid assembly. The same designs can also be adapted for CLT (Cross-Laminated Timber) systems or even conventional timber-framed construction, depending on project needs.
Our designs have been carefully modularised to align with standard panel dimensions and stud sizes, making them cost-effective, simple to manufacture, and easy to transport. This approach reduces construction waste, improves on-site efficiency, and allows greater flexibility across different prefabrication methods. Raised timber floors, slabs, or insulated screed floors can all be integrated depending on site conditions and client preference.
Glazing openings are designed to suit standardised modules that fit within shipping containers, reducing the cost and complexity of sourcing high-performance double or triple glazing. These small efficiencies add up — helping us deliver Passive House quality at a more accessible price point.
We maintain a growing library of previously designed and built homes, complete with documentation that can be readily adapted to suit new sites. If clients choose one of these ready-made plans, we’re able to offer reduced design fees, faster project timelines, and improved cost certainty — often resulting in lower overall construction costs.
These homes can be delivered either through a full traditional contract with any registered builder with a kit of parts supplied by SIPs/CLT manufacturers and a glazing supplier; or as a complete, locked-up shell by our partner builder and SIPs manufacturer— giving owner-builders the flexibility to complete their fitout while enjoying a certified Passive House envelope from day one. This makes Passive House quality more achievable for a wider range of families.
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SIPs Construction
Fully Built with Structural Insulated Panels
Prefabricated SIPs Construction
Learn why we use this method
SIPs infoSustainability Features in these Prefab Projects
Step by step of a sips house being constructed
videos of a sips envelope being erected
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