Psychological factors affecting human behaviour ‘a priori’ are largely underestimated in the contemporary urban debate. Mass psychological distress is not considered as a factor affecting urban dynamics within city-spaces. This study compares activities, preferences, and psychological dynamics related to behavioural contagion theory towards urban spaces in Hong Kong before and after COVID-19. Results showed significant transitions in preferences among shopping malls and urban green spaces for stationary uses, paired with substantial changes at the destination decision-making process. Other than behavioural tendencies, these results provide directions for discussing the integration of mass psychological distress into future urban scenarios design.