The overall impact of climate change is a decrease in the frost damage risk of masonry walls in Tønsberg, Norway. However, an increased frost damage risk is expected from the present to the future conditions for the walls of small, conditioned rooms with higher driving rain load and lower solar radiation gains. Moreover, the freeze-thaw events experienced by the masonry walls of unconditioned, leaky buildings are 20 times more than the ones for the small, conditioned rooms.