Transport for London (TfL) has issued a tender inviting architects to submit proposals to convert its London Underground headquarters at 55 Broadway into residential accommodation.
Located above St James’s Park Tube station, 55 Broadway has been London Underground’s headquarters for more than 80 years.
Designed by Charles Holden, 55 Broadway was commissioned in the 1920s and refurbished in the 1980s.
The company is planning to enhance the building for office, hotel and residential uses.
TfL, which will lead the planning application and the building approval process, anticipates to appoint the architects in October 2013.
TfL managing director of London Underground and London Rail Mike Brown said the tender is seeking architects who are used to working with heritage buildings.
"We recognise the historic features of our Grade I listed building, 55 Broadway, and we need to carefully ensure that any future use enhances its features," Brown said.
"We are committed to securing a future for the building that ensures it remains a valued part of the fabric of London."
"We also have a responsibility to fare and taxpayers to make sure that any redevelopment of 55 Broadway is a commercial success, with all proceeds reinvested in London’s transport network to deliver increased and improved services."
London Underground owns the freehold interest in 55 Broadway, 100 Petty France and the Wing over Station and holds an occupational lease of Albany House.
55 Broadway lies within the Broadway & Christchurch Gardens Conservation Area.