The 2004 Adelaide Affordable Eco Housing Competition was administered by Adelaide City Council, in association with the RA IA, as an open national design competition for Australian registered architects.

The proposed public housing development, located on the south eastern corner of Whitmore Square in Adelaide, was to set an affordable precedent for the application of high quality environmental design. The 45 schemes submitted were assessed by a panel of jurors including representatives from the Green Building Council of Australia, the RA IA, Council and State Government.

Quattro was awarded third prize, with the jury citing the scheme as:

“ …Innovative with respect to indoor environmental quality. It was a standout, delivering fresh air and passive heating and cooling by way of a ‘double floor’ geothermal system.”

Together with the emphasis on ESD elements, the jury also noted the strong urban design orientation addressing the perimeter of the site.


The scheme was built upon the fundamental passive design strategies demonstrated on the Southern Plumbing Plus buildings, while investigating additional innovative construction techniques to minimise embodied and operational energy use.