In our August webinar you can learn how smaller, well-designed homes can lead to a sustainable, & discerning lifestyle. Find out more & register here.

Whanganui District Roxborough eHaus Euro, Certified, Passive House Classic


It’s remarkable how much fits inside this two-storey 151 m² home for an extended and expanding family. The clients wanted a functional and compact home, a place that was both dignified and comfortable. It also includes a self-contained flat, gym, library and 3.5 bathrooms "Without a doubt the most comfortable house we’ve ever lived in, year-round and without having to burn power to make it that way, which is awesome"

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.

Learn More

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.

Learn More

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.
See this eHaus for yourself
Contact us

Design Components

Fully insulated concrete pad with a U-value of 0.238 W/(m²K)
ecoBlock ICF wall U-value of 0.096 W/(m²K)
Double layer of fibreglass insulation U-value of 0.205 W/(m²K)
Window Joinery Frame
Hilzinger, KBE Prestige Upvc Uf value 1.53 W/(m²K)
Double Glazed Low E Argon Ug value 1.10 W/(m²K) G Value 62%
Zehnder Comfo Air 350 MHRV
Hot Water
Flat plate solar system with internal 300 litre water storage
Inline heating element incorporated into ventilation system and controlled by comfo ease panel
Power Generation
5 kW Solar PV system
Ecological Features
2 x 22,500 litre water harvesting system. Natural flow black and grey water treatment system with composting. Clothes drying cupboard integrated into the ventilation system

Performance Specs

Floor Area: 151m²
Heating Demand: 11.0 kWh/m²/annum this compares to minimum compliance 6 Star house at approx. 50 kWh/m² per annum
Heating Load: 10 W/m²
Frequency of Overheating: 0%
TFA: 151.3 m²
Form Factor: 3.06
Air Leakage@50Pa: 0.6 ACH
PE Demand: 100kWh/m²/yr


eHaus - Cyril Vilbert



We've picked out a few of our other projects you might like

View all projects
We believe all great projects start with a great conversation. Get in touch with us to get your eHaus project started with a free, no obligation consultation.
Book a free consultation