The vitality of the city is substantially dependent upon the coexistence of old and new-buildings and people. A lot can be learned from the history and/or the potential of different generations; in the city this exchange is inevitable. The quality and arguably, quantity, of life are inextricably tied to both diversity and community. Human interaction, sense of belonging and dependence on others, make urban living desirable.

The built environment of the city, similarly, tolerates the vernacular and its deviations over time. The challenge for designers is the recognition of the impact one building can have--just as no actions are neutral, no building exists without its particular and broader context. This is not only a source of inspiration, an opportunity for thoughtful, responsive design, but an imperative.