Before the colonial period, Sri Lanka was a Monarchy. Thereafter administrative and governmental reforms were introduced under the Portuguese, Dutch and British rulers. Firstly the maritime Dutch territories and subsequently the Kandyan Kingdom came under the British rule in 1815. According to the recommendations of the Colebrook-Cameron commission, the Executive Council and the Legislative Council- the first legislative bodies of colonial Ceylon - were set up by the Governor, Sir Robert Horton, in 1833.

The Executive Council and the Legislative Council met in the building opposite the picturesque Gorden Gardens, now occupied by the Ministry of Foreign Affairs, until it was shifted to the old Parliamentary Building fronting the ocean at Galle Face. This building was declared open on January 29, 1930 by the then Governor Sir Herbert Stanley and housed the legislature till it was shifted to the new Parliamentary Complex at Sri Jayewardenepura Kotte in April 1982.   More detail...