Natalie and Daryl’s Urban Earth House 2020

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Location
Hurstbridge VIC 3099
    • Housing Type:
    • Standalone House
    • Project Type:
    • New Build
    • Open with support of
    • Clean Energy Nillumbik
    • Builder
    • Owner Builder using sub contracted local trades
    • Designer
    • Craig Byatt Architecture

About Natalie and Daryl’s Urban Earth House

We wanted a modest home that represented our desire to live a healthy and environmentally conscious lifestyle. Our home is designed to the highest energy efficiency and thermal performance standards, from the orientation and layout, to the construction system and material selections.

We wanted to demonstrate you could build a sustainable or even off grid house on the smallest urban block.

Our intention was to construct a home of the highest quality. Not only in terms of structure and energy efficiency, but also to protect and enhance the landscape. Our key objective was to utilise the sloping block for optimum northern orientation and provide a tranquil natural environment.

Our home is earth ship inspired. A greenhouse is situated on the northern face of the house providing access to the bedrooms and bathroom. The sun heats this space, drawing the warm ceiling air through the earth berm to the south. Over time the earth berm will gradually warm to a constant temperature of 21-23 degrees C all year round. This then radiates to the internal spaces. Soil excavated was used to create an earth berm to the southern side of the house and earth bag foundations.

The home is still a work in progress with some of the off grid systems yet to be connected.

We have lived in the home for three years now and love it.

Designed by Craig Byatt Architecture read more about their brief and design here.

You can also speak with homeowners directly on Saturday 19 September, online, as part of The Nillumbik Trail. Register here to participate.

 

 

 

 

 

 

This house achieved a NatHERS rating of 7.0 stars using NatHERS accredited software.

Find out how the star ratings work on the Nationwide House Energy Rating Scheme (NatHERS) website.

 

This home is supported by

Join the Nillumbik Trail on Sustainable House Day, hosted by Clean Energy Nillumbik and Nillumbik Shire Council.

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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
      Shading
      Thermal mass
    • Active heating cooling:
    • In floor Reticulated Water System with 12v inline water pump, Air convection and heat recovery system - in line fan and ducted pipe work though ceiling and thermal mass wall.
    • Water heating:
    • Gas instant hot water, intend installing a form of solar thermal heating
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Rainwater storage - Underground
      Compost toilet
      Low flow shower heads
    • Average water consumption per day:
    • 0.075kL
    • Underground rainwater storage type:
    • 3 x Concrete Water Tanks
    • Underground rainwater storage Size:
    • 35,000L
    • Above ground rainwater storage Type:
    • Colorsteel Corrugated Iron
    • Above ground rainwater storage Size
    • 10,000L
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Skylight
    • Window Protection:
    • Awnings (external)
      Shade Sails

    • Window Protection:
    • Cedar Shutters Internal, Shade sail is seasonal, Retractable awning
SUSTAINABLE & RECYCLED MATERIALS
    • Recycled and reused materials:
    • Excavated earth used in earth bag footings and thermal mass, Redgum Hardwood Posts,Door Hardware,Cedar Shutters, Workshop is an up cycled site accommodation
    • Sustainable materials:
    • Earth bag strip footings Plywood – internal walls and cabinetry Untreated Cypress Pine structural timber Hardwood Cladding – milled from fallen timber “Earthwool” recycled glass bulk insulation batts
    • Recycled and reused materials:
    • Benchtops
      Bricks
      Concrete
      Excavated earth
      Light fixtures / fittings
      Sleepers
      Timber

INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
      Floor
    • Ceiling Type:
    • Bulk – glass wool
    • Ceiling Rating:
    • R6.0
    • Floor Type:
    • The infill concrete floor slab is insulated from outside air with 150mm wide Hardwood perimeter edge beams.
    • Under Roof Insulation Type:
    • Roof space blanket and Earthwool recycled glass bulk insulation batts
    • Under Roof Insulation Rating:
    • R1.8 space blanket installed under roof sheeting; R4.0 under the roof blanket within ceiling between roof trusses
    • Internal Walls Insulation Type:
    • Bulk – glass wool
    • Internal Walls Insulation Rating:
    • R2.7
    • External Walls Rating:
    • R2.7 for east and west walls, south wall mudbrick and earth berm, north wall double glazing
    • External Walls Type:
    • Bulk – glass wool
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • No
    • Renewable energy
    • Thermal Mass, Solar PV with battery Grid Connection, behind the meter (Future)
    • Average Daily Energy Consumption:
    • 1.67 kWh
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $247,000
    • Cost estimate of sustainable home/features:
    • unknown
    • Estimate of annual savings:
    • unknown
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 70m2
    • BAL Rating
    • BAL – 29: Increasing levels of ember attack and ignition of debris with a heat flux of up to 29kW/m2
    • Roof
    • Metal (Galvanised)
    • Wall Materials
    • Mud brick
      Timber

    • Wall Materials
    • Glass
    • Window and Door Types
    • Double glazing
      Skylights
    • Universal Design Features
    • Hobless showers
      No stairs/steps

    • Universal Design Features
    • No levers or knobs as door handles
    • Number of bedrooms
    • 2
    • Number of bathrooms
    • 1
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Composting
      Edible garden
      Greenhouse
      Local indigenous plants
      Organic
      Permaculture
      Native plants
    • Waste Reduction Practices:
    • Book exchange/library
      Compost all food scraps
      Make jams/conserves
      Pickle and preserve food
      Recycle
      Repair
HEALTHY HOME FEATURES
    • Healthy home features
    • Carpet free - tiles/concrete/timber flooring throughout
      Chemical free cleaning products used
      Cross flow ventilation
      Indoor plants for air filtration
      Low VOC paints/sealer/varnish
      Natural oil sealer/finishes

    • Healthy Home
    • All wood is untreated, termimesh stainless steel physical termite barrier - no chemicals.

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