Green Design 2018

Green Design
Warranwood VIC 3134
10am – 4pm
House Open Style
Regular Guided Tours – No booking required
Entry fee or Donation
Gold coin
Donations supporting
Housing Type
Standalone House
Project Type
New Build
Green Design Solutions
R and K Service
House Size
Number of bedrooms
Number of bathrooms

LAST TIME TO BE VIEWED Janine’s passive solar home features an exposed concrete slab facing northwest, narrow build to increase air exchange, awning and sliding double-glazed windows on opposite walls for air flow. There is no artificial cooling, all living- and bedrooms have two-way ceiling fans for winter and summer settings.

Heating is via a first-storey-installed Coonara 5-star rated gas log fire and 15% of heat flued to downstairs via a fan. Heated air is also circulated with winter setting on ceiling fans. A Ventis ventilation system extracts heated air from the roof cavity and at a single ceiling space at the top of the stairwell to outside. During autumn and spring particularly, heated air in the roof cavity is pumped back into the house as supplementary heating through a medical-grade filter.

Other features include:

  • Insulation: R6 in ceiling, R2.5 in walls.
  • Decking: plantation Spotted Gum decking, and steel balustrading and uprights for longevity.
  • Eaves/Shading: 900mm eaves on all orientations, additional shading devices on three northwest-facing doors and windows.
  • Waste: internal – separated waste bins for recycling, compost and waste; external worm farm.
  • Water: 15,000L rainwater tank for the vegetable garden and connected to flushing all toilets. Grey- and blackwater waste has been plumbed separately in-slab for future greywater connection.
  • Solar Hot Water: Solar Lord 11 evacuated tubes linked to 6-star rated gas-boosted instantaneous. Another smaller unit services the kitchen and powder room, whilst the larger services the utility rooms in the east end of the home.
  • Lighting: LEDs, T5 and compact fluorescents throughout the home achieve 2.09W/m2 in living- and bedrooms and 4.65W/m2 in utility rooms, with an average of 3.02W/m2.
  • Solar PV: 2kW
  • Edible Garden: Growing nut trees and a range of vegetables, which are being watered by rainwater.

Website links: Green Design Solutions and eTool.

See Janine’s Tiny Home on-site too.


Years Open
Cost estimate of sustainable home/features
BAL Rating
BAL – 12.5: Ember attack with heat up to 12.5kW/m2
Roofing materials
Metal (Colorbond)
Wall materials (external and internal)
Lightweight construction (timber frame)
Window and door types
Double glazing
Stacking windows/doors
Window and door shading
Awnings (external)
Deciduous tree/vegetation
Recycled and reused
Sustainable materials
Timber benchtops, timber flooring, exposed concrete
Insulation - Ceiling
Type: sisalation
Rating: R6.0
Insulation - Internal/external walls
Type: Polyester batts
Rating: R2.5
Healthy home
Cabinet design to minimise dust collection
Cross flow ventilation
Heat recovery ventilation (HRV)
Indoor plants for air filtration
Natural light and ventilation
All electric home
Renewable energy
Solar PV grid connect
Size of PV system
Water heating
Solar hot water (evacuated tube)
Passive heating cooling
Passive solar designed home
Thermal chimney
Thermal mass
Active heating cooling
Ceiling fans
Heat exchange ventilation system
Energy efficiency
Draught proofing
Efficient lighting
Efficient appliances
Water harvesting and saving
Above ground rainwater storage
Type: Poly tank
Size: 15,000L
Stormwater management
Garden / Outdoors
Edible garden
Native plants
Water wise plants