The Princess House is a building on Alexandra Road in Queenstown, Singapore.
[2] The successor of the Singapore Improvement Trust, the Housing and Development Board, moved their main offices from Upper Pickering Street to the Princess House, making the building the first dedicated headquarters of the board.
[3] Several departments of the Ministry of Health moved their offices into the building in September 1971.
[4][5] The then newly created Ministry of Environment moved its offices into the Princess House in September 1972.
[2] The building was also visited by Putra of Perlis during his three-day tour of Singapore in November 1963.