A London virtual office is an off-site office located at an actual address but is not a physical place. The number one reason people turn to virtual offices is that they help businesses keep costs down. A virtual office is ideal for people who have home-based or newly started businesses and want to become more successful and grow. Some of the features of a London virtual office include telephone answering, email communication, virtual assistants, call centers and an actual business address. Let N1 Mailbox handle all of this for you.