World-Class Mission Viejo Is One Of America's Most Successful Master Planned Communities. Renowned for its beautiful parks and tree-lined boulevards, modern business and commercial centers and exceptional quality of life, the city has carefully combined its residential, commercial and recreational opportunities to produce a community second to none. Mission Viejo operates as a contract city with government entities, private firms, and the individuals providing its municipal services. Business and residents appreciate the accessibility of city officials, the quick turnaround of permit requests, and the high standards of quality and service.