Refers to an area of a city where many offices and businesses are concentrated. Often contrasted with オフィス街, which may imply a more modern or high-rise office area.
See also: オフィス街
There are many companies in this business district.
At lunchtime, restaurants in the business district fill up with office workers.
Marunouchi is known as one of Japan's leading business districts.
This skyscraper stands in the heart of the business district.