Butterfly house

Howth,
TAS
This home will be open for in-person tours on the 17th May 2026

About this home

I previously lived in a four-bedroom Federation house nearby, which was very energy inefficient. With retirement approaching, I decided to build a sustainable home.

I chose Uta Green from Green Design in Hobart as my architect. My brief included:

Position: North-facing, linked to my existing garden.
Size: Two bedrooms, one bathroom.
Materials: Low maintenance, energy-efficient.
Heating: Trombe wall, excellent insulation, thermal mass.
Accessibility: Wide doorways, no steps, grab handles.
Light & Ventilation: Natural light, MVHR system.
The process took three years, and I moved in October 2023. Now 70 and living alone, I find the all-electric, passive solar home with solar PV grid connect both comfortable and low-maintenance, perfectly suited to my needs.

Q & A

What motivated you to build or retrofit sustainably?
Previous house was dark & cold over winter
New build - cheaper & comfortable every day
could build more cheaply
N/A
Back to 2026 Homes
Type: Passive House or EnerPHit, Standalone house/townhouse
Project: New build
Architect: Uta Green
Designer: Uta Green and myself
Builder: Davies Construction
Size: 120m2m²
Energy Rating: passive house
Bedrooms: 2
Bathrooms: 1

Sustainability Features

Building Materials & Envelope

Draught-proofing/air sealing
Double or triple-glazed windows

Heating, Cooling and Ventilation

Passive heating/cooling (north-facing glazing, cross ventilation, thermal mass, shading, etc.)
Mechanical ventilation with heat recovery (MVHR) system

Energy and Appliances

Rooftop solar PV
Efficient lighting (LED, daylighting, solar skylights)
Heat pump hot water
Electric cooktop - induction/ceramic

Water & Waste Systems

Rainwater tanks

Landscape & Biodiversity

Climate Resilience

Bushfire

Accessible & Flexible Design Features

Universal design for accessibility
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