It is located at the junction of Chatham Street and Janadhipathi Mawatha (formerly Queens Road) in Colombo fort.

[3] The original clock was commissioned for £1,200 in 1814 by the then Governor Sir Robert Brownrigg (1759 – 1833) but was kept in a warehouse, due to economic reasons, until 1857 when it was finally installed.

The lighthouse was deactivated after its light became obscured by nearby buildings and was decommissioned on 12 July 1952.

[4] The modern Galle Buck Lighthouse was erected on Marine Drive as its replacement.

The original Colombo lighthouse was located on a bastion on the ocean edge of the fort, was a neo-classical structure, with a 23 m (75 ft) wooden light tower rising from a two-storey circular brick building and surrounded by an elaborate colonnade.