Interchange21 is a beautiful, modern office tower. It can be found on the corners of Sukhumvit Road and Asoke Road, in the area of Sukhumvit, Bankgok. If you are looking to rent office space Bangkok, you won’t find anything more modern or more spacious. It is perfectly and strategically positioned in the hub of the city and situated right on top of the access areas of the MRT subway and BTS sky train transit systems. It speaks for itself; it’s a Grade A office complex.