Case Studies

Bader Ventura

Kāinga Ora has finally gone public with its ambitious plan to build new social housing that targets Passive House certification. The Sustainable Engineering Ltd team has been deeply involved since the first discussions began about high-performance social housing and director Jason Quinn says he’s excited to be able to speak publicly about the work at last. Sustainable Engineering Ltd is …


In-construction 1634 m2
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Toiora High Street Cohousing

History has been made: the Toiora co-housing project in Dunedin has met all its targets and both buildings have received their Passive House certification. The development is home to 21 units and is both the largest Passive House project in New Zealand to date and the first multi-unit Passive House residential dwelling.  The success of Toiora is testament to the …


2021 1200.5 | 626.5 m2
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It’s been a long road to their “forever home” but the wait for this newly certified Passive House just north of Wellington has been worth it. Work began in 2016, but the subdivision and gaining title dragged on and then Covid created unforeseen delays. But all’s well that ends well. The four-bedroom 187m2 home shelters multiple generations. It sits on …


2021 187.3 m2
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Martin Residence

Sometimes serendipity produces the sweetest results. Brett Martin and Weihong Wang were in the early stages of designing a new energy efficient house when Brett happened to hear an interview on Radio NZ featuring Jason Quinn. Sustainable Engineering’s director was talking about the book he had just published, Passive House for New Zealand: The warm healthy homes we need. Passive …


2021 121.8 m2
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Threepwood Passive House

Siân Taylor had a vexing situation. After a day of designing Passive House and other high-performance homes for clients, she’d return to the ordinary 1980s house she shared with her husband (and fellow architect) Mark Read and their baby, which was freezing cold and took all evening to warm up even the living areas. From the UK and used to …


2021 121.20 m2
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Brokenshire House

This dramatic Christchurch home, nicknamed ‘The Lighthouse’ by neighbours, has just been certified as a PHI Low Energy Building. It’s a stand-out for many reasons; on a technical level, it’s notable for its use of panellisation on a challenging site with a 35% slope.  A house on the site was extensively damaged in the Canterbury earthquakes and had already been …


2021 170.6 m2
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Sole Family PassivHaus

Sole by name, sole by nature; this Christchurch Passive House was built around the unique vision and values of the clients. The result is an appealing home full of surprises and perfectly suited to the needs of its family. It’s a refreshing point of difference, when so much house design in New Zealand is driven by notions of maximising resale …


2021 206 m2
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HCC Staff Facilities

It’s confirmed: New Zealand’s first non-residential building has won PHI-certification. Hutt City Council’s facilities building at Silverstream landfill is a Low Energy Building. The climate (30km north of Wellington) doesn’t present undue difficulties but the small building does face some intrinsic challenges. Its footprint is a simple shape, but the form factor sits at a very high 4.1 due to …

Upper Hutt

2021 114.2 m2
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Huia St Residence

This striking home is perched on a steep lifestyle block above the Kapiti Coast, designed to take in expansive views to the west. On the clear day the ocean views stretch from the South Island to Mt Taranaki. The clients specified Passive House in their brief to their architect. The house’s excellent performance despite less than optimal solar access illustrates …


2020 181.6 m2
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