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(Almost) off-grid luxury harbourside home

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Aerial view of the dining and courtyard area
Entrance through the Ballast Point House
A homeowner playing with his dog in the courtyard with greenery

Ballast Point House in Sydney is almost (92%) off grid through the installation of solar panels and battery storage, rainwater harvesting and greywater use. To encourage low energy usage, architects Fox Johnston have integrated sustainable design features such as it’s reliance on thermal mass, site orientation, ample natural light and natural ventilation through the clever placement of courtyards and windows.

Dining area with an open sliding doors and greenery
A timber dining set inside the open glass doors of dining area

The home was designed for multi-generational living, and to achieve this the architects made clever use of the dual access sloping site by placing a self-contained apartment above the garage on the lower street frontage. The main house accessed via the second street frontage. The two dwellings can be opened up to create a larger home or can be locked for privacy.

Despite the home being sited on a relatively small block and closely surrounded by neighbouring properties, the use of small but lush gardens, rooftop cactus gardens and a courtyard make the home feel private and secluded. There are views of greenery or the harbour throughout all rooms in the home.

Related project: North Bondi House by James Garvan Architecture

Detailed view of the kitchen area with marble countertops and stools
Sliding glass doors and greenery in the breathable dining area with timber dining set and a sofa
A green sofa beside the timber dining set with a painting hanging above

Sustainability specs:
– Joinery is sustainable plywood
– Window and door frames are sustainably sourced blonde Accoya wood
– Solar panels with battery storage
– Rainwater harvesting
– Thermal mass via exposed concrete floors
– Hydronic in-slab underfloor heating
– Natural ventilation and ceiling fans used for cooling
– House is orientated on the site to aid passive design
– Timber sliding screens on the upper windows moderate solar glare and privacy
– Low-E glazing
– Recycled bricks left raw or painted

Open-air indoor-outdoor living area with vertical fold curtain and sofa
Behind the wood and glass door is a dog climbing the stair
White and timber theme hallway and stairs
Corner vanity tops with a mirror and small light bulb
Aerial view of the Ballast Point House with installed solar panels on the roof
From the architect:

The house is designed to work in the hot summer months by closing it down during the day, and opening it up again once the temperature outside starts to fall.

Images courtesy of Fox Johnston. Photography by Anson Smart and Brett Boardman.
Via www.yellowtrace.com.au
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