For all its complexity, urban planning and development should be driven by the simple indicator of citizens’ satisfaction with their life in their city. Do I have enough space in my apartment? Is it convenient to commute to work? Are there supermarkets and restaurants close to my home? Can my children breathe fresh air and are there enough green areas in the city? In any city, the answers to these questions end at a crossroads – whether to build up or build out, develop culture or commerce, build new parks or restore existing ones.