Buildings are currently responsible for 30 to 40% of total city emissions. As the pressure to act on climate change increases, local authorities aim to regenerate infrastructures so that they are more energy-efficient and sustainable. What do city leaders need to consider in order to contribute to a better quality of life through smart and sustainable buildings and well-integrated and intelligent city infrastructures? Here is a list of discussions on these themes which are going on at SCEWC22 in Barcelona: https://www.smartcityexpo.com/tracks-scewc/infrastructure-buildings/