Corvette Concretehaus 2024

House Notes – Corvette Concretehaus

In 2021, after many demoralising auctions, we found our dream dump: a 1956 uninsulated concrete box with enough land for our chooks, ducks, and food production. We started renovating from day one.

We were inspired by passive house principles and strove to meet EnerPHit standards. Could it be done on a tired old concrete beast?

Our most frequently asked question was, “Why don’t you just tear it down and start again?”. As well as financial constraint, we felt it was more wasteful to destroy than to adjust, and liked the historical context (built as part of the athlete village for the 1956 Melbourne Olympics).

We created the designs ourselves. Except for the footprint and foundations, we tackled almost everything. We removed the floor, ceiling, roof, and several internal walls. We replaced plumbing and electricity. We modernised the floorplan and redesigned the ceiling as a faux double cathedral. We incorporated airtight membranes and spent endless hours caulking and taping. We replaced all windows with double glazing, predominantly with tilt and turn mechanisms. We incorporated a MHRV system for continuous filtration and ventilation. We abolished gas and installed a heat pump water system, split system air conditioning, and solar panels. We added external insulation with thick EPS panels and render.

Aesthetically and ideologically, we prioritised use of recovered materials including timbers and doors wherever possible, as well as replacing original hardwood floorboards. In combination with off-plumb walls, this proved hugely challenging when trying to achieve air-tightness.

However, after much work, we achieved near EnerPHit standard and a comfortable, beautiful space. From a pokey, dark, worn out concrete kit home, we created an eclectic country cottage with sustainability at the forefront. We love our quirky apocalypse-proof fortress!

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
      External planting
      Heat recovery ventilation system
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
      Split system airconditioner
    • Water heating:
    • Hot water heat pump
    • Average water consumption per day:
    • 180L
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Skylight
      Tubular skylight
    • Window Protection:
    • Blinds
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • Recycled timber rafters for verandah Original floorboards cleaned, thicknessed and replaced Roof guttering on all sides directing to single catchment point Re-use of steel piping on site for plant arbor
    • Recycled and reused materials:
    • Appliances
      Basins/sinks
      Bath
      Bathroom cabinets
      Benchtops
      Doors
      Floorboards
      Timber
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
      Floor
    • Ceiling Type:
    • Bulk – glass wool
    • Floor Type:
    • Bulk - polystyrene board
    • Under Roof Insulation Type:
    • Reflective foil
    • External Walls Type:
    • Insulated panel system
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Renewable energy used:
    • Solar PV grid connect
    • Size of PV system:
    • 7.79
    • Average Daily Energy Consumption:
    • 8
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • Cost unknown - built in 1956
    • Cost estimate of sustainable home/features:
    • 250000
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 95
    • BAL Rating
    • No BAL rating requirements at time of construction
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Insulated panels or blocks

    • Wall Materials
    • Tilt panel concrete
    • Window and Door Types
    • Double glazing
      Double hung
      Skylights
      Sun Tunnel/SolaTube
      Tilt and turn
    • Number of bedrooms
    • 2
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Bird-nesting boxes
      Composting
      Edible garden
      Local indigenous plants
      Native plants
    • Waste Reduction Practices:
    • Compost all food scraps
      Make jams/conserves
      Recycle
      Repair
      Recycle coffee grounds from nearby cafe's
      Swap with friends and neighbours
HEALTHY HOME FEATURES
    • Healthy home features
    • Airtight house design
      Heat recovery ventilation (HRV)
      Lime render/wash
      Natural light and ventilation
      Wax based sealer/finish
Location
Heidelberg West VIC 3081
    • Housing Type:
    • Semi duplex
    • Project Type:
    • Renovation
    • Builder
    • Owner Builder

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