The ‘Smart City Living Lab’ is an emerging approach in European cities. It brings together citizens, policymakers, businesses and researchers to test smart, ICT based solutions to urban problems in real-life contexts. However, for urban mobility problems, solutions that ‘work’ in the particular reality of a living lab may not be adopted at a large scale. Urban infrastructure is interwoven with the daily lives of citizens and therefore difficult to change, and large groups may not even have access to ICT based solutions. The SmarterLabs project develops a novel approach that anticipates such problems in upscaling, and tests the approach through smart mobility living lab experiments in four cities: Bellinzona, Brussels, Graz and Maastricht.