Pimlico station was a late addition to the final section of the Victoria line between Victoria and Brixton and is the only station on the line which does not have an interchange with another Underground and/or National Rail line. It was the last Underground station to open until the first section of the Piccadilly line's Heathrow extension was opened to Hatton Cross in 1975.
The main entrance is on the corner of Bessborough Street and Rampayne Street. It is part of an office block that until 2006 was entirely occupied by the Office for National Statistics apart from the station and a newsagents shop. There are two other entrances, in Lupus Street and on the other side of Bessborough Street. These others have ramps as well as stairs, facilitating wheelchair access. However, there are still a few steps to walk down to enter the ticket hall.