This research examines the impact of innovation labs on productivity and sustainable process optimization by investigating space design and modification in different work environments - the lecture hall, the innovation lab and the modified innovation lab. While classic financial and business process optimizations can often be simulated or analyzed in process models with tools, the establishment of social and ecological process innovations often (still) requires interdisciplinary collaboration. Based on previous findings on the stimulation of creativity in innovation labs, it was expected that more ideas would be generated in such spaces. What is surprising, however, is the identical number of valid ideas generated in lecture halls and innovation labs. However, the innovation lab with a focus on sustainability is particularly noteworthy, as it generated significantly more ideas for sustainable process optimization.