Can't agree more on this. Overall, wellbeing should be an objective, and a priority, of urban and architectural design.
There are many opportunities to improve population mental health through urban design. We can create places where people feel safe and confident. We can reduce noise to improve sleep. We can develop neighbourhoods that promote social interaction and belonging, while delivering privacy and security. We can reduce stress associated with commuting. We can design daily encounters with nature. And there are many more options currently being explored.