What we build

Energy-efficient home builders.

Warm, dry, low-bill homes with high-performance insulation, glazing and airtightness, without the full Passive House cost.

Most of the way to Passive, at a price that makes sense

Not everyone needs a full certified Passive House, but everyone wants a warm, dry home with low power bills. We build high-performance homes that get most of the way to Passive at a price that makes sense, using insulated slabs, thick insulation, high-performance glazing and airtight construction.

What you get

A home that is warm and dry year round, with low running costs and healthier air for the people inside it. And you choose the level: we build to the performance that suits your budget, from energy-efficient right up to the full Passive House standard.

Built for high energy efficiency

The Blue House at Upper Moutere, an energy-efficient Ecotectural home with high-performance insulation and glazing
Upper MoutereHigh-performance

The Blue House

A high-performance home built for warmth and low running costs.

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Rooftop solar array powering Horton Road, an energy-efficient Ecotectural SIPs home in Tasman
TasmanHigh-performance

Horton Road

A Formance SIPs envelope running on solar power.

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Good questions

Energy-efficient building, answered.

What is the difference between energy-efficient and Passive House?

Passive House is a measured international standard with strict targets for airtightness, insulation and ventilation, proven by testing. An energy-efficient home uses the same building science, insulated slab, thick insulation, high-performance glazing, airtightness, but to targets set by your budget rather than the certification. Read about our Passive Homes.

How much more does an energy-efficient home cost?

Typically a modest premium over a code-minimum build, far less than the step to full Passive, and it comes back through years of lower power bills. Our guide to build costs in NZ puts real numbers around it.

What makes a home energy-efficient?

The envelope does the work: an insulated slab, thick wall and roof insulation, high-performance double or triple glazing, airtight construction and smart ventilation. Get those right and the home barely needs heating. See the systems we build with.

Want a warm home and small power bills?

Book a free one-hour consultation with founder Daryl Combes. No obligation, just an honest conversation about your site, your brief and your budget.

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