The Cubby House 2023

The Cubby House

With this house being in Witchcliffe Ecovillage – so many of the big decisions were made – sufficient rainwater, solar feeding into the microgrid, sustainable materials used, grey water recycled and a like-minded community with whom to strive for an abundant garden.

Things we knew we had to have to feel good about this build (it’s been a long time coming!) – minimal footprint, rammed earth in every room (as much as we could afford), no more space than what we needed, chef’s kitchen, asthma-friendly, healthy lighting, efficient use of space and a good nod to the natural environment – feeling the outside, inside.

Having been to an incredible amount of Sustainable House Days ourselves, and searching across Australia for the place to settle down, we followed the development of Witchcliffe for years. And had formed a clear idea of the kind of home we’d like based on so many experiences and conversations with generous homeowners who had opened their homes on these days.

Troppo were a natural choice as they design homes to sit harmoniously in their environment, and they know the behaviour of all the materials they put forward. Simpson Builders and Lat 34 graciously took up our small build and have done so with such care and attention to detail.

After all the research, energy, time and heart that has gone into the Cubby House it will be interesting to review its energy efficiency this time next year – and be able to offer the annual savings made at the 2022 Sustainable House Day.

This house achieved a NatHERS rating of 8.1 stars using NatHERS accredited software. Find out how the star ratings work on the Nationwide House Energy Rating Scheme (NatHERS) website.

Sustainability Features

Years Open
2021
2023
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Efficient lighting
      Efficient appliances
      Energy monitoring
    • Passive heating cooling:
    • Cross ventilation
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
      Hydronic
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Grey water system
      Stormwater management
      Low flow shower heads
      Low flow taps
    • Average water consumption per day:
    • x
    • Above ground rainwater storage Type:
    • Stainless steel
    • Above ground rainwater storage Size
    • 70000
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Tubular skylight
    • Window Protection:
    • Verandah
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • Rammed Earth Spine Wall Western Red Cedar Smaller Home Passive Solar Solar Panels Greywater System Hydronic Floor Heating
    • Recycled and reused materials:
    • Appliances
      Basins/sinks
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
    • Ceiling Type:
    • Bulk – cellulose fibre
    • Ceiling Rating:
    • 4
    • Under Roof Insulation Type:
    • Reflective foil
    • Under Roof Insulation Rating:
    • 1.3
    • Internal Walls Insulation Type:
    • Bulk – cellulose fibre
    • External Walls Rating:
    • 2.7
    • External Walls Type:
    • Bulk – cellulose fibre
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Energy star rating:
    • 8.1
    • Renewable energy used:
    • Energy storage/battery
      Solar PV grid connect

    • Size of PV system:
    • 8.2
    • Renewable energy
    • Micro-grid with community cluster
    • Average Daily Energy Consumption:
    • x
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • 360000
    • Cost estimate of sustainable home/features:
    • 70000
    • Estimate of annual savings:
    • x
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 95m2 approx
    • BAL Rating
    • BAL – Low: There is insufficient risk to warrant specific construction requirements
    • Roof
    • Metal (Zincalume)
    • Wall Materials
    • Rammed earth
      Timber
    • Window and Door Types
    • Double glazing
      Louvre windows
      Low-e, films
      Sliding windows/doors
      Sun Tunnel/SolaTube
    • Universal design accessability
    • Adaptive design
      Wheelchair accessible
    • Universal Design Features
    • 80cm minimum door opening width
      Flush thresholds (no lip) to all external doors
      No stairs/steps
      Space around toilets for ease of access in wheelchairs
      Strong fittings like towel rails that can be used as hand rails
      Window openings easily accessible
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Bee keeping
      Bee hotels/friendly
      Chickens
      Community vegetable garden
      Composting
      Edible garden
      Frog friendly
      Local indigenous plants
      Organic
      Permaculture
      Swales
      Water wise plants
      Worm farm
    • Waste Reduction Practices:
    • Book exchange/library
      Compost all food scraps
      Pickle and preserve food
      Plastic free household
      Recycle
      Repair
      Take own containers to the supermarket and for take away food
      Toy exchange/library
      Swap with friends and neighbours
      Waste free/reduced construction site
HEALTHY HOME FEATURES
    • Healthy home features
    • Cabinet design to minimise dust collection
      Carpet free - tiles/concrete/timber flooring throughout
      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
      VOC free paints/sealer/varnish
Location
Witchcliffe WA 6286
    • Housing Type:
    • Standalone House
    • Project Type:
    • New Build
    • Open with support of
    • Witchcliffe Ecovillage
    • Builder
    • Simpson Builders / Latitude 34
    • Designer
    • Troppo Architects

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