The first stage of the competition asks designers to brainstorm ideas and approaches for the public-realm aspects of a new coastal defence scheme for a sea wall.
Redcar & Cleveland Borough Council and the Environment Agency are looking for a "coherent set of proposals" for the seafront backdrop, road and building fronts.
"Redcar now recognises the need to improve the quality, role and economic performance of its seafront visitor space to raise its profile and stimulate investment," said a representative for RIBA, which is running the competition.
The deadline for registration is 20 August. For details, visit www.ribaredcarseafront.co.uk.