THE ECO-HOUSE

Kangaroo Valley, Australia

Set on 3ha against a mountain backdrop, this estate is less than two hours’ drive from Sydney. Built of cool mud bricks and warm timber, it has attained one of the best energy ratings and requires no additional heating or cooling. It features sustainably designed gardens with an enviro-cycle watering system. kenjacobs.com.au

EGLON HOUSE

Primrose Hill, London

This 12,000sqft property achieves the highest sustainable and environmental construction standards in the UK. It features a living green wall, rainwater recycling and a specially engineered triple-glazed solar roof. Features include five bedrooms, a cinema, an indoor swimming pool and a roof terrace. savills.com

FOUR-BED VILLA

Con Dao, Vietnam

Built of local granite and hardwood from managed forests, the villa is part of the only five-star resort on Con Dao, an island off Vietnam’s southeast coast. The development meets the benchmarks of Green Globe 21, the global environmental standard for the tourism industry. signatureresidencesworldwide.com

10-BEDROOM VILLA

Peccioli, Tuscany

Set on an 8ha organic farm, this villa has been renovated as a “‘zero footprint” home that uses no fossil energy. It has a lovely infinity pool with breathtaking views, olive groves and an orchard. It includes a solar power plant and advanced green technologies that have earned it Italy’s A+ energy certificate. sothebysrealty.com

SUMMER LAKE

The Cotswolds, England

One of a group of six, this impressive five-bedroom, New England-style lakeside property has excellent environmental credentials. It has an Excellent Eco Homes rating and an award for Best Sustainable Development, which makes it one of the most eco-friendly residential developments in the UK. watermarkcotswolds.com

WAYSIDE GARDENS

Buckinghamshire, England

This opulent new 7,000sqft property was built with the latest technology for energy efficiency. It features photovoltaic tiles and solar panels, Quooker hot water and under-floor central heating. It has six bedrooms, four reception rooms, a study, gym and state-of-the-art kitchen. christiesrealestate.com

(Text byNadine Nicolson)

Tags: Top 6, Homes. Eco-Friendly Living