
The current fort was build by the Dutch around the year 1667 but the first defensive structures consisting of a simple dirt wall where built here a century before in 1545 by Raja Tunipalangga. The Dutch Admiral Cornelis Speelman concurred the fort in 1667 and renamed it after his birthplace, Rotterdam. Soon the fort was rebuilt with 6 meter high and 2 meters thick walls. In the inside arose Dutch houses and a church. The fort became the center of Dutch colonial power on the island of Sulawesi.
Fort Rotterdam kept it function till 1937 after which it got other functions. In the 1970s the fort was restored and renamed to Fort (Benteng) Ujung Pandang. It is one of the best preserved Dutch buildings in Indonesia.

Fort Rotterdam is open every day from 08:00 till 18:00 hour. Entrance is free although a donation is requested, Rp. 10,000 should suffice. The museum is only open Tuesday to Sunday in the morning from 8:00 till 12:30 hour, entrance is about Rp 7500.