Acknowledgement Prize: Affordable building materials from recycled agricultural waste, Zaria, Nigeria by Charles Oluwole Job, Bern University of Applied Sciences, Architecture, Wood & Civil Engineering, Switzerland in collaboration with Frédéric Pichelin and Andreas Rosenkranz, Bern University of Applied Sciences, Architecture, Wood & Civil Engineering, Switzerland; Henry Tata Kimeng and Sani Mustapha, Ahmadu Bello University, Department of Architecture, Nigeria; Chigbo Aghaegbusi Mgbemene and Okey Nduka, University of Nigeria, Nigeria: The end products: a variety of composite boards.