Construction began in March 1958 to enlarge the village to house a population of 15,000 and the basics were completed by the time that the French granted independence on 28 November 1960. Nouakchott was planned with the expectation that commerce and other economic activities would not take place in the city. Nouakchott's central business district was planned with broad streets and a grid-like structure; the new ''Cinquième Quartier'' (Fifth District) was located close to this area and became the location of a large open-air market and residential area within a few years. During the 1960s, the city obtained its own local government. By the 1970s, these new areas had grown so much that they replaced the old ''ksar'' in terms of importance, as they also hosted the governmental buildings and state enterprises.