Otago – St Clair Dunedin

In by Shelley

Otago – St Clair Dunedin

Certified PassivHaus Classic

This amazing home sits south west over the coastal view.  The architects had to solve the issue of being able to enjoy the vista while enabling some shelter from the prevailing winds.

Super insulation was used along with Triple argon filled low-E coated glazing necessary for the climate this far south. European windows by ecoWindows in wood and aluminium also feature.

This grid tied photo-voltiaic home is perfect for this progressive family, often generating more energy than it uses.

Design Components

Floor – EPS raft slab 200mm U-value = 0.131 W/(m2K)

Wall – 140mm timber frame with service cavity  U-value = 0.212 W/(m2K)

Roof – Double layer of fibreglass insulation  U-value = 0.119 W/(m2K)

Window Joinery Frame – EcoWindows – Wood Alu HA 78 Premium U f-value = 1.30 W/(m2K)

Glazing – Triple glazing  Argon  U g-value = 0.60 W/(m2K) g -value = 54 %

Ventilation – Zehnder Comfo Air  R 350 MHRV

Hot Water – 250L Hot water cylinder

Heating/Cooling – Under tile heating mat on ensuite and bath

Performance Specifications

Heating Demand: 12.04 kWh/m2/yr

Heating load: 13.7 W/m2

Frequency of overheating: 0 % year over 25C

TFA: 181.9 m2

Form Factor: 3.04

Air Leakage@50Pa: 0.50 ACH

PE demand: 95 kWh/m2/yr

Experience this eHaus for yourself

Contact eHaus Otago

Passive House Project Team


Team Green Architects


eHaus Otago - Stevenson & Williams


Team Green Architects


Mead Energy and Architectural Design