Taranaki Thornbury eHaus Euro, Certified, Passive House Classic


These clients came to eHaus with clearly-thought through requirements: simplicity without compromise on performance or construction. They wanted a certified Passive House with quality, low maintenance and durable construction. While energy efficiency was important, other performance standards were required. The house needed to be readily secured plus resilient to high winds, storms and earthquakes. Air quality and environmental considerations were also important with low VOC and natural materials being required. The clients understood the trade off between size, budget and quality and their instructions to the designer were clear: stay within the budget, shrink the house rather than skimp on quality. The eHaus design team delivered a Certified Passive House with two bedrooms, an office, two bathrooms, a spacious laundry and a reception area, all within a TFA of 121 m² plus a double garage.

Extraordinary heat energy savings.

Every one of our projects are energy modelled using the Passive House Planning Package (PHPP). It's through this powerfully clever tool that we can accurately calculate just how much heat energy every eHaus will save when compared to a similarly- sized typical new home, built in the same climate region.

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This project is making significant carbon savings for a better environment.

We believe that our homes should have a big impact on the way we live, but little impact on the land. We've calculated the amount of carbon our homes have saved through energy efficiency from move in day 'til now. At their core, eHaus' are built with the elimination of carbon emissions in mind - so we're not only creating healthy, comfy & high performing homes, but spaces that don't cost the earth.

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Meet the team of designers and builders behind this project

Our eHaus team is made up of some of the country's best Passive House builders, architects and designers who are redefining the way kiwis live one home at a time. Our team of professionals work together to see your dreams come to reality.
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Design Components

Fully insulated concrete pad with a U-value of 0.182 W/(m²K)
ecoBlock ICF wall U-value of 0.267 W/(m²K)
Double layer of fibreglass insulation U-value of 0.156 W/(m²K)
Window Joinery Frame
eco Windows wood alu/purnit Uf value 0.91 W/(m²K)
Double Glazed Low E Argon Ug value 1.10 W/(m²K) G Value 61%
Zehnder Comfo Air 350 MHRV
Hot Water
Flat plate automatic drain down Solar Thermal system with 300 Litre storage tank
Electric 1000W Convection heater, Electric 209W Towel rail heater
Power Generation
Solar PV system generating 17 kWh/(m²a)
Ecological Features
Low flow shower units, LED lighting

Performance Specs

Heating Demand: 9 kWh/m²/yr
Heating Load: 5 W/m²
Frequency of Overheating: 3%
TFA: 121.1 m²
Form Factor: 3.4
Air Leakage@50Pa: 0.46 AH
PE Demand: 88 kWh/m²/yr


eHaus - Jon Iliffe


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