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Wairarapa Greytown eHaus Euro, Certified, Passive House Classic


This comfortable, contemporary three bedroom home combines functionality with form, with visual appeal from the street and sympathetically sitting toward the south boundary that creates space for gardens and indoor/outdoor flow. The more complex shape means a higher form factor. The mono pitch roof efficiently sheds the strong Wairarapa winds

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 0.214 W/(m²K)
ecoBlock ICF wall U-value = 0.244 W/(m²K)
Double layer of fibreglass insulation U-value of 0.193 W/(m²K)
Window Joinery Frame
Energate – Ludwig Häussler Gmbh, EN 843 Upvc U w-value = 0.87 W/(m²K)
Triple glazed units 4/18/4/18/4 Argon Low E U g-value = 0.5 W/(m²K) g -value = 52 %
Zehnder Comfo Air 350 MHRV
Hot Water
Flat plate automatic drain down Solar Thermal system with 300 Litre storage tank
500W inline heat coil fitted in the ventilation system. Controlled by comfo ease panel
Ecological Features
2500 Litre Rain water harvesting system

Performance Specs

Total Floor Area: 202.4 m²
Ground Floor Area: 167.7 m²
Garage Floor Area: 34.8 m²
Heating Demand: 15.6 kWh/m²/annum
Heating Load: 14 W/m²
Frequency of Overheating: 2.7%
TFA: 150.2m²
Form Factor: 3.61
Air Leakage@50Pa:
PE: 109 kWh/m²/yr


eHaus - Jon Iliffe


MosArt Ireland

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