Lizard Rock 2018

House Notes – Lizard Rock

We’ve been in the home now for five years, and are passionate about including as many sustainable features as possible. We love our earth, and want to contribute to it rather than just taking.
We’re essentially ‘off-grid’ re: energy, with a large solar and battery system providing our all our energy needs and making us money exporting back to the grid. We harvest water through 32,500L of tanks, feeding into an irrigation system covering hundreds of metres and dozens of trees. The home is highly comfortable, with double glazing and insulation throughout. Efficient lighting, space conditioning and hot water work to further reduce impact. We have planted hundreds of natives throughout the block, encouraging wallabies, bandicoots, birds, bats, possums and other creatures to make their home here. See if you can find the feature that gives our house it’s name! [hint: it’s in the backyard]
We will run a tour every hour between 10-3.
There are even more plans for the house – a greywater system to treat shower and sink water for reuse in the washing machine and garden, an electric vehicle, a glass house for plant propagation, and more!
See you here.

Sustainability Features

Years Open
2018
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Energy monitoring
    • Passive heating cooling:
    • Cross ventilation
      Shading
      Thermal mass
    • Active heating cooling:
    • Ducted AC controlled across 5 zones.
    • Water heating:
    • Hot water heat pump

    • Water heating:
    • Instant gas hot water. Intend to replace with heat pump powered by solar array.
    • Water harvesting and saving features:
    • Above ground rainwater storage
      Stormwater management
      Low flow shower heads
    • Above ground rainwater storage Type:
    • 4 water tanks
    • Above ground rainwater storage Size
    • 32,500L
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Skylight
    • Window Protection:
    • Awnings (external)
      Blinds
      Deciduous tree/vegetation
      Drapes/curtains
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • Ecotimber was used to construct 3 raised garden beds.
    • Recycled and reused materials:
    • Rocks/stone
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Ceiling
      Internal walls
      External walls
      Floor
    • Ceiling Type:
    • Bulk - polyester
    • Ceiling Rating:
    • R4.0
    • Floor Type:
    • Bulk - polyester
    • Internal / External Walls Type:
    • Blow in - polystyrene balls
    • Internal Walls Insulation Type:
    • Blow in – polystyrene balls
    • External Walls Type:
    • Blow in – polystyrene balls
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • No
    • Renewable energy used:
    • Energy storage/battery
      Solar PV grid connect

    • Size of PV system:
    • 9.3kW Solar PV grid connect
    • Renewable energy
    • 13.5kWh Tesla Powerwall 2 home battery
    • Average Daily Energy Consumption:
    • 16.5 kWh for the house / 5.5kWh per person
COSTS AND COST SAVINGS
    • Cost estimate of sustainable home/features:
    • $65,000
    • Estimate of annual savings:
    • $4500
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 150m2
    • BAL Rating
    • BAL – Low: There is insufficient risk to warrant specific construction requirements
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Brick veneer
    • Window and Door Types
    • Bi Fold
      Double glazing
      Louvre windows
      Sliding windows/doors
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Bee keeping
      Composting
      Drip irrigation
      Organic
      Native plants
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
      Swap with friends and neighbours
HEALTHY HOME FEATURES
    • Healthy home features
    • Chemical free cleaning products used
      Cross flow ventilation
      Natural light and ventilation
Location
St Ives NSW 2075
    • Housing Type:
    • Standalone House
    • Project Type:
    • Continual Improvement
    • Builder
    • Retrofit
    • Designer
    • Self-designed

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