Watson House

Ngunnawal Land,
Watson,
ACT
Online home tour

About this home

Our house was built in 1964, as a Stegbar display home with three bedrooms. In the 1970s an upstairs extension of three bedrooms and a bathroom were added, with two of the downstairs bedrooms becoming a large living area.

Caught up in a sheep dip contamination scandal in the early 2000s, our house was part of an ACT government buyback scheme which was then rescinded as further testing showed there wasn’t any contamination. The person who then bought it used it as an office and garden decoration storage shed and no-one lived here for 20 years until we bought it virtually derelict in 2019.

We were determined to bring it back to its former glory: we pulled out the oil heating, installed reverse cycle heating/cooling both in the main house and in the work studio and gym, installed PV panels on the main house and studio along with a battery, installed EV car charging for our two EVs, insulated the ceiling and walls, retro fitted double glazing to the original timber Stegbar windows downstairs, and put an evaporative cooler upstairs. Our most recent upgrades include a swim spa heated with a heat pump, a full electric outdoor kitchen to replace the old gas barbecue, and a tiny two person sauna that runs off the battery. We have 10 fruit trees, and four wicking beds for growing vegetables.

We are signed up to Amber to get access to wholesale electricity pricing, allowing us to sell to the grid at more than 200 times the usual FIT when prices spike. Our average FIT for the last 12 months is 44.3c/kWh. In the last six months, since adding extra panels, we’ve earned $155 at the same time as supplying all of our power needs including cars, spa, sauna, office space, house, and gym.

Q & A

What motivated you to build or retrofit sustainably?
Climate, Cost, Comfort
Solar and battery allowed us to power the home for free even before we completed the other upgrades when the house was very inefficient.
The 10kW solar limit in ACT (for single phase) is inverter size not panel size.
V2G
Type: Standalone house/townhouse
Project: Home retrofit
Size: 160m²
Bedrooms: 4
Bathrooms: 2

Sustainability Features

Building Materials & Envelope

Draught-proofing/air sealing
High-performance insulation
Double or triple-glazed windows
Recycled or reused materials

Heating, Cooling and Ventilation

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

Energy and Appliances

Rooftop solar PV
Battery storage
Dedicated wall-mounted EV charging
Energy monitoring/smart home systems
Efficient lighting (LED, daylighting, solar skylights)
Electric cooktop - induction/ceramic
Other energy-efficient appliances

Water & Waste Systems

Water-efficient fixtures
Rainwater tanks
Greywater system

Landscape & Biodiversity

Edible garden

Climate Resilience

Heatwave

Accessible & Flexible Design Features

Share this home:

Related Homes

Home tours delivered to your inbox

Step inside sustainable homes across Australia and get practical ideas you can use in your own