The 5th International Architecture Biennale Rotterdam (IABR) has called for submissions of projects that 'advance innovative responses to today's most pressing urban challenges'. Municipal, metropolitan and national governments, cultural organizations, researchers, designers, and other parties are invited to submit design projects that rethink the existing interaction between politics, planning and design.

The selected projects will be integrated into the 5th IABR's overall research and development process and they will be presented in Making City, the 5th IABR's main exhibition at the Netherlands Architecture Institute, opening in April 2012. Projects can be submitted until 1 April 2011, 12:00 CET.

The IABR is an international urban research biennale founded in 2001 on the conviction that architecture is a public concern. It is an international event of exhibitions, conferences, lectures and other activities devoted to themes in the field of architecture and urbanism.

For submission guidelines and more information, visit www.iabr.nl