Footprint Garden Farm 2020

Address
Willunga SA 5172
Full address will be displayed on 10 Sep 2020
HOUSE DETAILS
    • Housing Type:
    • Standalone House
    • Chosen Charity
    • Sustainable House Day 2021
OPENING WITH SUPPORT OF
    • Open with support of
    • Climate Ready Communities (Australian Red Cross and Resilient South), Magic Harvest
    • Builder
    • Toogood Homes

Following on from our SHD openings of Eco Home Stirling, this is the third year we will be opening our Footprint Garden Farm. This house is the fourth home we’ve built and incorporates 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 finished creating an urban Permaculture garden farm, 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 with the benefit of our newly installed PV system have totalled $536.63 credit! We will demonstrate how switching the HW heat pump timer and running appliances including ‘pre-conditioning’ the house while the sun is shining, and changing other habits help sustainable living.

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 2021.

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.

SUSTAINABLE FEATURES

Years Open
2018
2019
2020
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Energy monitoring
      Other
    • Energy efficiency:
    • Low air leakage design and construction (5.4 air changes/hr as blower-tested and certified), active air flow management
    • Passive heating cooling:
    • Cross ventilation
      Deciduous planting around house
      External planting
      Passive solar designed home
      Shading
      Thermal chimney
      Thermal mass
      Other
    • Passive heating cooling:
    • Slab partially earth coupled, high transpiration plantings in path of prevailing summer breezes
    • Active heating cooling:
    • Ceiling fans
      Split system airconditioner
      Other
    • Active heating cooling:
    • Fan heater rarely used to heat small areas as needed, electric blanket in bed
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Stormwater management
      Low flow shower heads
      Low flow taps
      Drip irrigation
      Other
    • Average water consumption per day:
    • 0.46 kL mains (to garden still being established), house runs on rainwater only
    • Above ground rainwater storage Type:
    • Galvanised iron tanks
    • Above ground rainwater storage Size
    • 30,000L
    • Water harvesting and saving
    • Swales to pond, permeable paths and paving
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Skylight
    • Window Protection:
    • Adjustable Shading
      Awnings (external)
      Deciduous tree/vegetation
      Drapes/curtains
      Eaves
      Honeycomb blinds
      Pelmets
      Shade Sails
      Other
    • Window Protection:
    • External shade blinds to west facing veranda
SUSTAINABLE & RECYCLED MATERIALS
    • Recycled and reused materials:
    • 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
    • Recycled and reused materials:
    • Appliances
      Bricks
      Cladding
      Concrete
      Doors
      Excavated earth
      Metal sheeting
      Pallets
      Paving
      Rocks/stone
      Roofing material
      Timber
      Other
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
      Floor
      Other
    • Ceiling Type:
    • Batts
    • Ceiling Rating:
    • R2.5 between floors
    • Floor Type:
    • Slab edge and sub-walls with reflective foam with air gaps
    • Floor Rating:
    • R2.0
    • Other Insulation Methods:
    • 50mm polystyrene foam board to footing edge R2.0
    • Internal / External Walls Type:
    • SHD batts and reflective foam sheeting
    • Internal / External Walls Rating:
    • R4.0
    • Under Roof Insulation Type:
    • Batts plus reflective foam board and foil above
    • Under Roof Insulation Rating:
    • R8.0
    • Internal Walls Insulation Type:
    • Batts
    • Internal Walls Insulation Rating:
    • R2.5
    • External Walls Rating:
    • R4.0+
    • External Walls Type:
    • Batts R2.7 + reflective foam with air gaps R1.9
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Renewable energy used:
    • Solar PV grid connect
    • Size of PV system:
    • 9kW
    • Average Daily Energy Consumption:
    • 3-4 kWhr
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $450,000
    • Estimate of annual savings:
    • $1,500 p.a in electricity, house rain water in use but mains higher due to establishing garden
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 150m2
    • BAL Rating
    • BAL – Low: There is insufficient risk to warrant specific construction requirements
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Concrete blocks
      Lightweight construction (timber frame)
      Metal (Colorbond)
      Rammed earth
      Timber
      Other
    • Wall Materials
    • MgO cladding to external walls that are above ground level, plaster board internally
    • Window and Door Types
    • Bi Fold
      Casement
      Clerestory windows
      Double glazing
      Skylights
      Tilt and turn
    • Universal design accessability
    • Multi-generational
      Wheelchair accessible
    • Universal Design Features
    • 80cm minimum door opening width
      Contrasting colours and material for vision impaired
      Flush thresholds (no lip) to all external doors
      Hobless showers
      Lever handles for doors (no knobs)
      Pull out shelving easily accessible in wheelchairs
      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
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Bee hotels/friendly
      Chickens
      Composting
      Drip irrigation
      Edible garden
      Frog friendly
      Greenhouse
      Green walls
      Local indigenous plants
      Orchard
      Organic
      Permaculture
      Native plants
      Swales
      Water wise plants
      Wicking beds
      Worm farm
    • Waste Reduction Practices:
    • Compost all food scraps
      Make jams/conserves
      Recycle
      Repair
      Take own containers to the supermarket and for take away food
      Swap with friends and neighbours
      Waste free/reduced construction site
      Other
    • Other Waste Reduction Practices:
    • Worm farm for food scraps and compost all garden waste as well
HEALTHY HOME FEATURES
    • Healthy home features
    • Chemical free cleaning products used
      Cross flow ventilation
      Formaldehyde free cabinets
      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