Footprint Garden Farm 2019

Footprint Garden Farm
Willunga SA 5172
10am – 4pm
House Open Style
Open House with some scheduled introductory talks
Entry fee or Donation
Gold coin
Donations supporting
Sustainable House Day 2020
Housing Type
Standalone House
Project Type
New Build
Toogood Homes
House Size
Number of bedrooms
Number of bathrooms
Open with support of
Climate Ready Communities (Australian Red Cross and Resilient South), Magic Harvest

Following on from our SHD openings (Eco Home Stirling) and 2018 (here) this is a recently completed new build (our fourth), incorporating all the latest sustainability features that we have been able to find and afford. Our new block is smaller than our previous home, but we have nearly finished creating an urban Permaculture food forest, and will be demonstrating this as well, to all who are interested.

Being constrained to a smaller footprint has meant using a ‘loft style’ plan and minimising waste space by combining bathroom/laundry and entry/stairwell, and reducing passageways.

We have incorporated higher-than-average insulation with a low-cost self-designed wall, sub-wall and roof system; plus high thermal mass, including a virtual ‘earth-coupled’ slab.

Our plan for ageing gracefully here includes low-maintenance cladding and top-quality fittings.

Though only gaining a medium NatHERS certified rating (7.7 stars), our passive design has already gone through 2 summers with little added cooling energy and we have not had to use much winter space heating either. We hope to display our power bills which indicate an actual rating nearer to 9+ stars! Our power bills over the last year since we installed the PV system and changed the HW heat pump timer to daytime have totalled $186.60 credit!

We firmly believe in helping people cope with the coming warmer climate and promoting ‘climate resilience’, and see opening our house and garden on SHD as a very positive way of doing this.

This home will be open with the support from Climate Ready Communities

Gold coin entry will support Sustainable House Day 2020.


This house achieved a NatHERS rating of 7.7 stars using NatHERS accredited software (FirstRate5). Find out how the star ratings work on the Nationwide House Energy Rating Scheme (NatHERS) website.


Years Open
Cost estimate of sustainable home/features
Total cost of home when constructed
Estimate of annual savings
$1,500 pa power, house rain water use but mains higher due to establishing garden
Universal design accessability
Wheelchair access
Universal Design Features
80cm minimum door opening width
Flush thresholds (no lip) to all external doors
Hobless showers
Lever handles for doors (no knobs)
Slip resistant flooring
Space around toilets for ease of access in wheelchairs
Tapware to be easily accessed from outside the shower
Window openings easily accessible
BAL Rating
BAL – Low: There is insufficient risk to warrant specific construction requirements
Roofing materials
Metal (Colorbond)
Wall materials (external and internal)
Concrete blocks
Lightweight construction (timber frame)
Rammed earth
Window and door types
Bi Fold
Clerestory windows
Double glazing
Tilt and turn, casement
Window and door shading
Deciduous tree/vegetation
Honeycomb blinds
Shade Sails
Recycled and reused
Roofing material
Furniture, dry stone walling, some fencing and paving
Sustainable materials
MgO boards and radially cut timber as cladding, MgO decking, polished recycled concrete slab floor, plantation grown timber frame
Insulation - Under roof
Type: Batts plus reflective foam board and foil above
Rating: R8.0
Insulation - Ceiling
Type: Batts
Rating: R2.5
Insulation - Internal/external walls
Type: SHD batts and reflective foam sheeting
Rating: R4.0
Insulation - External walls
Type: Batts R2.7 + reflective foam with air gaps R1.9
Rating: R4.0+
Insulation - Internal walls
Type: Batts
Rating: R2.5
Insulation - Under floor
Type: Slab edge and sub-walls with reflective foam with air gaps
Rating: R2.0
Insulation - Other
50mm polystyrene foam board to footing edge R2.0
Healthy home
Chemical free cleaning products used
Cross flow ventilation
Indoor plants for air filtration
Low VOC paints/sealer/varnish
Natural fibre furnishings
Natural light and ventilation
Natural oil sealer/finishes
Wax based sealer/finish
All electric home
Renewable energy
Solar PV grid connect
Size of PV system
Water heating
Hot water heat pump
Passive heating cooling
Cross ventilation
Passive solar designed home
Thermal chimney
Thermal mass
Slab partially earth coupled, high transpiration plantings in path of prevailing summer breezes
Active heating cooling
Ceiling fans
Split system airconditioner
Fan heater rarely used to heat small areas as needed, electric blanket in bed
Energy efficiency
Draught proofing
Efficient lighting
Efficient appliances
Energy monitoring
Low air leakage design and construction (5.4 air changes/hr as blower-tested and certified), active air flow management
Water harvesting and saving
Above ground rainwater storage
Type: Galv tanks
Size: 30,000L
Stormwater management
Low flow shower heads
Drip irrigation
Swales to pond
Garden / Outdoors
Bee hotels/friendly
Community vegetable garden
Drip irrigation
Edible garden
Native plants
Water wise plants
Chickens coming soon
Average Daily Energy Consumption Per Person
3-4 kWhr
Waste Reduction
Compost all food scraps
Swap with friends and neighbours
Worm farm for food scraps and compost all garden waste as well