The competition, launched last September, called for designers to develop a product or means to provide clean water and sanitation to those who live without.
The winning scheme, WatAir, was designed by architects Joseph Cory and Eyal Malka and, according to the couple, 'works as an inverted pyramid array of panels, which collects dew from the air and turns it into fresh water and sanitation for millions of people around the world'.
The competition attracted more than 100 entries from 20 countries, and was judged by Arts Council chairman Christopher Frayling, Make's Ken Shuttleworth, Water Aid's Valerie Kuntz and Arup's Jo da Silva, who called the scheme 'a wonderfully simple concept, which draws its inspiration from nature'.
Geotectura received £3,000 for first prize, Maxime Hourani from Lebanon came second, Christoph Wust and Eva Nemcova from Germany finished third, and Sam Wingfield and Ben Hodgkin of Faber Maunsell in the UK were highly commended.
All final entries can be seen in the Building Centre, London.by Richard Vaughan