Its total development area is about 24 square kilometres (9.3 sq mi). The population of the new town is approximately 801,800 and reaches the planned capacity.
Although Tsuen Wan New Town belongs to the New Territories, it is also considered a part of Hong Kong metro area, like Hong Kong Island and Kowloon. It is because the town was developed early and is not geographically separated from Kowloon by hills or mountains. Also, there are no New Territories taxis providing service in Tsuen Wan New Town except at Tsuen Wan Station and Tsing Yi Station, unlike other new towns in New Territories. In the latest official reports, Kwai Chung New Town and Tsing Yi New Town are separated from Tsuen Wan New Town.