Architects in Australia have built an ‘eco-house’ with estimated bills of just €300 a year. BENT Architecture specialises in sustainable buildings, embracing passive solar design techniques to minimise both energy bills and the environmental impact of the spaces.

“Like all our projects, the Olinda House embraces the sun and uses passive solar design techniques to ensure the home is comfortable and efficient, year-round,” explains BENT Architecture director Paul Porjazoski.

The Olinda House is a bespoke eco-friendly design for the owners, …