A hypothetical proposal that calls for a new national capital in the Kimberley region of Western Australia to take advantage of the ''next Asian century'' has won a Centenary of Canberra international design competition.

Just over a month after Opposition Leader Tony Abbott was lambasted for suggesting incentives to develop Northern Australia, the CAPITheticAL competition was won on Thursday by Perth firm Ecoscape Australia with a design that calls for a national focus on the growth and innovation of that very region.

David Kaesehagen, Managing Director of Ecoscape in Perth holds his entry. Credit:Graham Tidy

The total prize pool was $100,000, with $70,000 going to the winner.

The competition invited student and professional architects, landscape designers, engineers and urban planners from around the world to revisit Canberra's history and imagine how an Australian national capital might be created today, more than 100 years after the actual event.