The present contribution deals with a practical insight into the design, implementation, and evaluation of different participation formats (on-site, direct mail, online) to participate in a living lab. A total sample of 290 citizens was recruited to promote sustainable mobility (i.e. walking and cycling) and improve urban space quality. Results further address the influence of participation methodology on participants' evaluation, willingness to participate and reported satisfaction with the participation used as well as predictors for participation satisfaction. Although the sample was not representative, the results suggest that citizen participation contributed to a more sustainable mobility awareness and a higher acceptance of the urban transformation.