The museum was first established in 1992 as E. W. Perera Memorial Museum in Ihala Walawwa,[1] the residence of E. W. Perera, a prominent figure in the Sri Lankan independence movement, and was declared open to the public in 1995.
The museum building consists of five exhibition rooms and is used to display a variety of archaeological antiquities recovered from Kotte and its surrounding area. They include various regional flags, clothing, statues, coins, swords, knives, guns, weapons, pottery, maps, and a collection of items used by E. W. Perera and items donated by Douglas Ranasinghe.[2][3]