CENTER COMMERCIAL PROJECT. A commercial district or commercial zone is any part of a city or town in which the primary land use is commercial activities (shops, offices, theaters, restaurants and so on), as opposed to a residential neighbourhood, an industrial zone, or other types of neighbourhoods. In some cities, authorities use planning or zoning laws to define the boundaries of commercial districts. Commercial areas in a city are areas, districts, or neighbourhoods primarily composed of commercial buildings, such as a downtown, central business district, financial district, "Main Street", commercial strip, or shopping centre. Commercial activity within cities includes the buying and selling of goods and services in retail businesses, wholesale buying and selling, financial establishments, and a wide variety of uses that are broadly classified as "business." While commercial activities typically take up a relatively small amount of land, they are extremely important to a community’s economy. They provide employment, facilitate the circulation of money, and often serve many other roles important to the community, such as public gathering and cultural events.