Hemp “H” House 2024

House Notes – Hemp “H” House

Homes By Nature were awarded a residential building contract to construct a custom
design home in the Witchcliffe Ecovillage.
The design process was undertaken by architect John Damant of Arcologic with the
consultation of homes by nature’s managing director, Cameron Richardson.
Together an establishment of sustainable and energy efficient materials was bought
forward, and the client was delighted to accept the concept.
Comprising of hempcrete constructed walls (a combination of hemp hard and specialised
lime), burnished concrete floors, Accoya timber double glazed windows and thermally
modified Vulcan cladding. This home finished with natural gypsum-based plasters and
breathable lime-based renders achieves an 8.9 NAThers star rating.
This highly energy efficient home is a pioneer of homes that promotes breathability, cross
ventilation, good thermal mass in the walls and floors, solar passive design and
outstanding design properties which improves the capacity for this home to be selfsufficient in energy usage.

This home is opening in partnership with our sponsor, Witchcliffe Eco Village. You can find out more about booking this tour here.

Come and explore Sustainable House Day in Australia’s Most Sustainable Residential Community:
  • Engage with sustainability experts
  • Join our Open House Tour to explore 6 highly sustainable solar passive homes
  • Attend Ecovillage presentations
  • Learn more about 100% renewable energy microgrids
  • Take part in community garden tours and take a look at EVs
  • 100% renewable 75 kW EV charging available on site
Don’t Miss Out!
Register your interest below to receive updates on the program, open house schedules, and an exclusive early-access sign-up for our OPEN HOUSES TOUR.
– Sustainable House Day
– ecovillage.net.au

Sustainability Features

Years Open
2024
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Energy monitoring
      Smart home features
    • Passive heating cooling:
    • Cross ventilation
      Deciduous planting around house
      Passive solar designed home
      Shading
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
      Geothermal
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Blackwater system
      Grey water system
      Stormwater management
      Low flow shower heads
      Low flow taps
      Drip irrigation
    • Average water consumption per day:
    • 100L
    • Above ground rainwater storage Type:
    • Rainwater tank
    • Above ground rainwater storage Size
    • 60,000L
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
    • Electric Vehicle Type
    • Tesla
    • Window Protection:
    • Deciduous tree/vegetation
      Eaves
      Solar pergola
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • Hempcrete walls R 4.1 Hygrothermal Hemp Render externally, clay based Gypsum internally. Vulcan Timber structures Accoya timber double glazed windows and doors Fly ash in concretemix
    • Recycled and reused materials:
    • Excavated earth
      Wine barrels/crates
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
    • Ceiling Type:
    • Bulk – polyester
    • Ceiling Rating:
    • 4.0
    • Under Roof Insulation Type:
    • Reflective foil
    • Under Roof Insulation Rating:
    • 1.5
    • Internal Walls Insulation Type:
    • Bulk – polyester
    • Internal Walls Insulation Rating:
    • 2.0
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Energy star rating:
    • 8.9
    • Renewable energy used:
    • Energy storage/battery
      Geothermal
      Solar PV grid connect
      Solar PV off-grid
    • Size of PV system:
    • 10
    • Average Daily Energy Consumption:
    • 3.0
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • 375000
    • Cost estimate of sustainable home/features:
    • 325000
    • Estimate of annual savings:
    • 7000
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 100
    • BAL Rating
    • BAL – Low: There is insufficient risk to warrant specific construction requirements
    • Roof
    • Metal (Zincalume)
    • Wall Materials
    • Hempcrete
      Lightweight construction (timber frame)
      Timber
    • Window and Door Types
    • Casement
      Sliding windows/doors
    • Universal design accessability
    • Adaptive design
      Wheelchair accessible
    • Universal Design Features
    • 80cm minimum door opening width
      Flush thresholds (no lip) to all external doors
      Hobless showers
      Lever handles for doors (no knobs)
      Minimum 110cm wide hallways
      No stairs/steps
      Ramps and path gradients must be less than 20:1
      Pocket doors so that cabinet doors are out of the way
      Semi recessed basins
      Space around toilets for ease of access in wheelchairs
      Window openings easily accessible
    • Number of bedrooms
    • 2
    • Number of bathrooms
    • 1
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Community vegetable garden
      Composting
      Edible garden
      Frog friendly
      Local indigenous plants
      Orchard
      Organic
      Permaculture
      Native plants
      Swales
      Water wise plants
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
      Swap with friends and neighbours
HEALTHY HOME FEATURES
    • Healthy home features
    • Airtight house design
      Carpet free - tiles/concrete/timber flooring throughout
      Chemical free cleaning products used
      Cross flow ventilation
      Formaldehyde free cabinets
      Indoor plants for air filtration
      Lime render/wash
      Low VOC paints/sealer/varnish
      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
    • Builder
    • Homes By Nature
    • Designer
    • Arcologic

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