Wavertree House 2020

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Location
Darwin River NT 0841
    • Housing Type:
    • Standalone House
    • Project Type:
    • Continual Improvement
    • Open with support of
    • Cool Mob, Darwin
    • Builder
    • Garrett Homes
    • Designer
    • Engineering drawings by E Harris

About Wavertree House

The house incorporates design elements that have proved to be appropriate for living in the wet-dry tropics over a hundred years or more.

It has high air-flow, low thermal mass, high reflectivity, air-gap insulation in walls and roof, off-grid solar electricity, rainwater harvesting and biolytix sewage treatment.

The main living areas are elevated to catch the prevailing breezes and the house is oriented to optimise that in combination with least sun exposure of walls and roof. The roof is high-pitched to reduce heat absorption from the sun and protect against lift from cyclonic wind speeds.

Windows are full height, open 100 percent, and louvred for sun and weather control. Windows extend to the corners of the rooms to maximise air-flow potential from even the least breezes, no matter what direction they come from.

The house is constructed of steel with slate floors for maximum recyclability, termite resistance and fire resistance, because it is located in a private conservation area where these environmental factors are important. Zincalume ceilings are perforated for air-flow to windworker ridge vents and for acoustic dampening in rooms. The ground floor guess bedroom has an airconditioner that is solar powered for guests who arrive from down south and who think they need it.

The airconditioner, like all other electrical circuits for appliances and lighting, is completely solar powered. Toilets and shower rooms are of universal access standards.

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SUSTAINABLE FEATURES

Years Open
2020
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Efficient lighting
      Efficient appliances
    • Passive heating cooling:
    • Cross ventilation
      Passive solar designed home
      Shading
      Thermal chimney
    • Active heating cooling:
    • Ceiling fans
      Split system airconditioner
    • Water heating:
    • Solar hot water (flat panel)
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Worm farm septic tank system
      Drip irrigation
    • Average water consumption per day:
    • NA
    • Above ground rainwater storage Type:
    • Plastic tanks
    • Above ground rainwater storage Size
    • 160,000L
    • Window Protection:
    • Eaves
      Louvres
      Shutters
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      External walls
    • Under Roof Insulation Type:
    • Reflective foil
    • External Walls Type:
    • Reflective insulation
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • No
    • Renewable energy used:
    • Energy storage/battery
      Solar PV off-grid
    • Size of PV system:
    • 6kVA
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $650,000 including solar power system and rainwater tanks
    • Cost estimate of sustainable home/features:
    • No extra cost.
    • Estimate of annual savings:
    • No heating and cooling costs
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 214m2
    • Roof
    • Metal (Zincalume)
    • Wall Materials
    • Metal (Zincalume)
    • Window and Door Types
    • Bi Fold
      Louvre windows
      Sliding windows/doors
    • Universal Design Features
    • 80cm minimum door opening width
      Hobless showers
      Lever handles for doors (no knobs)
      Minimum 110cm wide hallways
      No Corner cupboards
      Power points at 60cm above floor level and 50cm from internal corners
      Pull out shelving easily accessible in wheelchairs
      Ramps and path gradients must be less than 20:1
      Slip resistant flooring
      Space around toilets for ease of access in wheelchairs
      Strong fittings like towel rails that can be used as hand rails
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Bird-nesting boxes
      Composting
      Drip irrigation
      Edible garden
      Frog friendly
      Local indigenous plants
      Native plants
      Natural swimming pool
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
HEALTHY HOME FEATURES
    • Healthy home features
    • Cross flow ventilation
      Natural light and ventilation

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