Kate and Matt’s Cygnet Earthship is a high-performance evolution of the traditional "Hobbit house," tailored for Tasmania’s cool climate. Part of a master planned permaculture micro-village, this project uses a strata title cohousing model where five households share 1.6 hectares of land, an orchard, and communal facilities, balancing private living with social and economic resilience.
Sustainability & Comfort
Thermal Mass "Batteries": Rammed earth walls and an insulated concrete foundation act as thermal batteries, absorbing heat by day and releasing it at night to maintain stable temperatures without active heating or cooling.
Passive Airflow: Underground earth tubes draw air through the ground to provide a constant flow of fresh, naturally tempered air year-round.
Food-Producing Greenhouse: A north-facing sunroom captures solar energy and serves as a "wet buffer zone" for year-round indoor food production.
Self-Sufficiency: The home is designed to be entirely off-grid, using solar power and harvesting rainwater via large tanks. The solar panels and battery will be installed once energy consumption has been measured from normal everyday use.
Resourceful Design
Regenerative Water: Greywater from sinks, showers, and laundry is filtered through greenhouse planters to nourish indoor food crops.
Upcycled Materials: The build features internal cob walls, "bottle bricks" for decorative insulation, and salvaged treasures like old apple shed doors and antique furniture repurposed as vanities.
Climate Readiness
Engineered for Australian extremes, our home is bushfire and heatwave resilient. The non-combustible earthen envelope and earth-sheltered design provides a safer, permanent refuge that remains comfortable even during intense weather events.
