The Hütt 01 PassivHaus
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House Notes – The Hütt 01 PassivHaus
We are architects and designers, specialising on sustainable homes. We finally had an opportunity to build our very first own home, and we went full steam ahead. The house has not only been showcased on Grand Designs Australia, but it is also designed to be a ShowCase home in itself : We love the idea of net zero energy homes, and we are always trying to convince everyone that that is the way into the future, so this was a great opportunity to show one. The home is a passive house with lots and lots of experimental and exciting features, from the eco garden aquaponics system via CLT structure and passive house technology to a green roof and an (almost) off-the-grid-electricity system with Solar PV and batteries.
The house has already won many sustainability awards and architecture awards, amongst them an AIA National Award for Sustainable Architecture, the ArchiTeam Sustainability Medal, the Residential (new-built) category in the Australian Sustainability Awards, best Sustainable House in the houses awards, and. many more… So exciting !
The Hütt 01 PassivHaus was featured in Sanctuary magazine Issue 57.
SUSTAINABILITY FEATURES
- Energy efficiency:
- Draught proofing
Efficient lighting
Efficient appliances
Energy monitoring
Smart home features
- Passive heating cooling:
- Cross ventilation
Heat recovery ventilation system
Passive solar designed home
Shading
Thermal mass
- Active heating cooling:
- Heat exchange ventilation system
Heat pump
- Water heating:
- Hot water heat pump
- Water harvesting and saving features:
- Rainwater storage - Above ground
Stormwater management
Low flow shower heads
Low flow taps
Hot water recirculation
Drip irrigation
- Average water consumption per day:
- Not sure yet
- Above ground rainwater storage Type:
- Kingspan Slimline corrugated iron and Oztanks super-slim
- Above ground rainwater storage Size
- over 10,000 L
- Energy Efficient Lighting
- LED lights throughout
Natural daylight
Skylight
- Window Protection:
- Adjustable Shading
Automation/controls
Awnings (external)
Blinds
Deciduous tree/vegetation
External window hoods/surrounds
Roller doors
Shutters
- Sustainable materials:
- (1) Passivehouse Standard (currently undergoing certification process),
(2) Heat Recovery Ventilation System (Zehnder),
(3) CLT (Cross Laminated Timber : Mass timber construction), internally exposed/whitewashed in many areas with natural oil finish,
(4) Natural woodfibre insulation, added to by high performance insulation where required to minimise thermal bridging,
(5) Passivehouse doors and windows,
(6) Airtightness and vapour control layers in walls,
(7) green roof,
(8) Internal green wall as well as integrated planters,
(9) environmentally friendly concrete with 70% cement replacement,
(10) E0 OSB,
(11) FSC certified engineered oak floors with natural oil finish and cradle to cradle (bronze) certification,
(12) Heat Pump Hot Water (Hydrotherm),
(13) Solar PV (Australian made Tindo panels) and battery,
(14) Aquaponics kitchen garden with fishpond,
(15) Heat Pump Kitchen/Laundry appliances with high efficiency,
(16) Zypho shower water heat recovery
(17) LED lighting throughout
- Recycled and reused materials:
- Aggregate
Bricks
Concrete
Decking
Metal sheeting
- Insulation Type:
- Under-roof
External walls
Floor
- Floor Type:
- Woodfibre Insulation
- Floor Rating:
- 4.6
- Under Roof Insulation Type:
- Woodfibre Insulation
- Under Roof Insulation Rating:
- 4.9
- External Walls Rating:
- 4.3
- External Walls Type:
- Woodfibre Insulation
- All-Electric Home?
- Yes
- Renewable energy used:
- Energy storage/battery
Solar PV grid connect
- Size of PV system:
- 10.8
- Average Daily Energy Consumption:
- 5
- Total cost of home when constructed:
- 1.5m (2021)
- Cost estimate of sustainable home/features:
- 50000
- Estimate of annual savings:
- 5000
- House Size
- 180
- BAL Rating
- No BAL rating requirements at time of construction
- Roof
- Green roof
Metal (Colorbond)
- Roof
- Solid Metal (Alum) Standing Seam Cladding
- Wall Materials
- (1) like brick veneer but with CLT plus membranes to passive house standard instead, and (2) the same but with the metal cladding and extra insulation
- Window and Door Types
- Low-e, films
Skylights
Sliding windows/doors
Tilt and turn
Triple glazing
- Universal Design Features
- 80cm minimum door opening width
100cm minimum door opening width
Hobless showers
Lever handles for doors (no knobs)
Minimum 110cm wide hallways
Shower head on rail for various heights
Slip resistant flooring
Tapware to be easily accessed from outside the shower
- Number of bedrooms
- 4
- Number of bathrooms
- 3
- Garden / Outdoors
- Aquaponics
Drip irrigation
Edible garden
Green roof
Green walls
Local indigenous plants
Native plants
- Waste Reduction Practices:
- Recycle
- Healthy home features
- Airtight house design
Automated ventilation system
Cabinet design to minimise dust collection
Cross flow ventilation
Heat recovery ventilation (HRV)
Indoor plants for air filtration
Lime render/wash
Low VOC paints/sealer/varnish
Natural light and ventilation
Natural oil sealer/finishes
Wax based sealer/finish
- Housing Type:
- Standalone House
- Project Type:
- New Build
- Builder
- Home by Hutt / Felicity & Marc Bernstein
- Designer
- Melbourne Design Studios (MDS)
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