Senior Residence Christchurch

Project Team

Architecture   Hibernia Building and Design –
Passive House Design eHaus–
Construction eHaus Canterbury North - Chatterton Builders -
Certifier Sustainable Engineering Ltd –

A two level modern family residence replacing an earthquake damaged home in the midst of Christchurch City. The design concept was developed by Hiberna’s Jessica Eyres in conjunction with the the eHaus team who completed the energy modelling and detail design. Built by the eHaus Canterbury North Builders Brent & Claire Chatterton. Achieving the Passive House Plus requirements with a Solar PV system generating electricity on site.



Passive House Metrics

  • Heating Demand22.1 kWh/m2/year
  • Heating Load9.3 W/m2
  • Frequency of Overheating1%
  • TFA198.1 m2
  • Form Factor3.4
  • Air leakage @ 50Pa0.51 ACH/hour
  • PER demand31 kWh/m2/year
  • Renewable Energy Generation46 kWh/m2/year

Passive House Database 5434

Construction Details Average Values

  • U-value External Walls0.15 W/(m2K)
  • 215mm SIP with 50mm insulated service cavity
  • U-value Floor0.34 W/(m2K)
  • EPS waffle pod slab with 65mm continuous insulation under the ribs
  • U-value Roof0.13 W/(m2K)
  • 265mm SIP with 90mm un-insulated service cavity
  • U-value Glass0.50 W/(m2K)
  • 25ud-SANCO SILVERSTAR TRIII E - (4:/20/4:/20/4 90%Ar)
  • U-Windows0.94 W/(m2K)
  • Thermadura NatureLine 90 Wood Alu
  • Ventilation Efficiency77%
  • Zehnder ComfoAir Q450