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Granny Flats ‘Backyard Goldmines’

A Sydney-based builder is turning New South Wales backyards into goldmines thanks to revolutionary InsulLiving® panels by Bondor®, Australia’s leading supplier of thermal building solutions.

Builder Paul Mathias, owner of Multidwell, spotted a gap in the market in 2009 for premium backyard dwellings, with demand growing as such he expects to build 40 this year in Sydney’s northern beaches.

With prices from $142,000 (GST inclusive), including all services, engineering fees and a seven-year warranty, these small but perfectly formed detached dwellings, with feature windows, decorative timber beams and, timber, tiled or even polished concrete floors, are fetching upwards of $620 a week in rent.

“That works out to a 19 percent return on investment, which is unheard of,” Mr Mathias said. “And it’s a property, a tangible asset that will not disappear.”


“Recently a client had her house valued prior to the construction of a secondary two-bedroom dwelling. Eight months after completion, she had the property valued again and was amazed to discover its value had risen by $200,000- representing a 20 percent rise in an extremely short time frame.”


With their most popular design a 60sqm one or two bedroom dwelling, incorporating living room, bathroom and designer kitchen, Multidwell’s studios are built to a steel structure fitted with InsulWall panels, part of Bondor’s InsulLiving offering.

Bondor general manager Geoff Marsdon said the InsulWall solution utilised technology previously used in commercial cool rooms, to optimise thermal effiency and reduce the need for ducted air-conditioning.

The panels lock together, creating an air-tight seal that repels heat in summer and retains warmth in winter.

“The average InsulLiving home achieves a 7 to 9-star energy rating, while the average brick veneer struggles to achieve 5-stars, meaning InsulLiving homes are more resistant to heat and cold,” said Mr Marsdon.

For more information on the InsulLiving system call 1300 300 099.