The Guyana’s Parliament Building designed by Joseph Hadfield was constructed in the 19th century. It was built of the wood logs that is called “green heart” in Guyana. It is a plant typical for evergreen tropical jungles.

The Foundation was laid in 1829 and in April 1834 the building process by Joseph Hadfield’s design was finished. The distinctive feature of that magnificent building was the way of  finishing. It had been plastered in the way that eventually the wood resembled stone blocks. Putting up the spacious building cost 50 thousand pounds. After the construction works were over the building was handed over to a committee of the Court of Political Affairs.

The installation of lacunar ceilings in the parliament chamber in the eastern wing was completed in 1875. The chamber also contains: an elegantly carved teakwood armchair, a gift from the Indian government, a table and three armchairs for secretaries and an armchair for a serjeant at arms (a gift from the British House of the Commons to celebrate the Independence), portraits of Guyanese political leaders, Arthur Chang (1970–1980) and Forbes Burnham (1980–1985), a gold-covered clock symbolizing sunbeams and given by Demerara Company Limited, one of the iconic companies in Georgetown as a gift. 

The walls of the Parliament are faced with mahogany panels. The windows with stylish curtains touching the floor allow the light and air to fill in the room. The windows facing the North have little balconies. The floor is paved with the local wood “green heart”. 

Generally, the Guyana's Parliament Building is a fine example of the architecture of the 19th century. It is one of the two two-domed buildings in Georgetown. In front of the main entrance, there are two memorial cannons used at the Crimean war. There is also a statue of Hubert Nathaniel Critchlow  (1884-1958), the father of the modern Union movement in Guyana.