Case Studies

PIHA EnerPHit

This is New Zealand’s first enerPHit project to be certified. This astonishingly ambitious retrofit stripped a large, luxury house built in 2008 back to its shell and rebuilt it to achieve certifiable performance. The result is a testament to the owner’s commitment and the skilled team of professionals that brought the project to fruition over a three year period. There …

Piha

2022 220.6 m2
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Walklin Residence

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New Plymouth

2022 216.7 m2
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8 Bushland Place

8 and 10 Bushland Place are the first two homes to be completed in an entire subdivision targeting Passive House Plus certification. This is an ambitious undertaking with the heavy lifting being done by experienced Passive House builders at Ethos Homes. Peter Bielski of Ethos was approached by landowner Ernst Frei on the basis of his team’s reputation and track …

Christchurch

2022 142.7 m2
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10 Bushland Place

8 and 10 Bushland Place are the first two homes to be completed in an entire subdivision targeting Passive House Plus certification. This is an ambitious undertaking with the heavy lifting being done by experienced Passive House builders at Ethos Homes. Peter Bielski of Ethos was approached by landowner Ernst Frei on the basis of his team’s reputation and track …

Christchurch

2022 142.7 m2
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Te Whare o K&K

Te Whare o K&K is New Zealand’s most northern Passive House project by far. It’s one of only two north of Albany, at time of writing, and over 260km further north than Lower Saddle House.  It’s a paragon of good practice when it comes to Passive House design. This is hardly surprising given the client and Passive House designer is …

Mangōnui

2022 90.4 m2
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Te Mata

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New Plymouth

2022 213 m2
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Fairfield Office

The new purpose-built office for long-established Blenheim builders, Fairfield Construction, is a certified PHI Low Energy Building. It’s the first commercial building in the South Island to gain a PHI certification. Work had begun before a decision was made to aim for Passive House performance and the concrete slab was already poured when Sustainable Engineering began the initial design work. …

Blenheim

2022 47.7 m2
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Orr’s Residence

This successfully certified Passive House project in the top of the South is a SIP construction on an insulated concrete slab with locally manufactured high-performance windows. Informed clients led the push for energy efficiency, in part thanks to encouragement from a son in the construction trade. It was the architect’s first Passive House project, with Passive House design delivered by …

Richmond

2022 201.7 m2
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