Mixed uses - choose a jigsaw puzzle to solve

Mixed-use development is a type of urban development that blends residential, commercial, cultural, institutional, or entertainment uses, where those functions are physically and functionally integrated, and that provides pedestrian connections. Mixed-use development can take the form of a single building , a city block, or entire neighbourhoods. The term may also be used more specifically to refer to a mixed-use real estate development project —a building , complex of buildings , or district of a town or city that is developed for mixed-use by a private developer, (quasi-) governmental agency, or a combination thereof. Traditionally, human settlements have developed in mixed-use patterns . However, with industrialisation as well as the invention of the skyscraper , governmental zoning regulations were introduced to separate different functions, such as manufacturing , from residential areas. In the United States , the heyday of separate-use zoning was after World War II, but since the 1990s , mixed-use zoning has once again become desirable as the benefits are recognized.