Johore Battery

Johore Battery is a former British coastal artillery battery located on Cosford Road in Changi, eastern Singapore. Built in 1939, it housed three 15-inch naval guns, the largest installed outside Britain at the time, to defend the Singapore Naval Base and eastern approaches. Destroyed before the 1942 surrender, the site now displays a full-scale replica gun and a labyrinth of underground tunnels, preserved as a World War II heritage attraction near Changi Airport.

Visitors can expect an open-air heritage site featuring a full-scale replica of a 15-inch coastal defence gun on its original mounting, surrounded by a network of underground ammunition storage tunnels and corridors. The site is set in a wooded area near Changi Airport with interpretive panels explaining the battery's layout and operation. Visitors can walk around the gun emplacement, view the tunnel entrances and explore the exterior grounds.

Constructed by the British in 1939 as part of Singapore's coastal defence system, Johore Battery mounted three 15-inch BL Mark I naval guns to protect the eastern approaches and the Singapore Naval Base. The guns were destroyed by British forces in February 1942 before the surrender of Singapore to prevent their use. The site was later rediscovered and preserved, with a replica gun installed to mark its historical scale and role in World War II.

Johore Battery is a gazetted historic site that commemorates Singapore's World War II coastal defence heritage and is managed as an educational heritage attraction illustrating British military engineering of the late 1930s.