There were very few sports facilities opened to the public in the 1950s, and in response, the Singapore City Council built a swimming pool at the site of the King George V’s Park. It was designed by M. E. Crocker and it was named the River Valley Swimming Complex. The swimming complex opened in August 1959 and the swimming complex had an Olympic-sized pool and a wading pool. The complex was constructed at a cost of $520,000.
After independence, the Singapore Sports Council took over the swimming complex in 1973. As more swimming facilities were built in the new towns and the heartlands, River Valley Swimming Complex saw a decline in visitor numbers. It was shut down in April 2003 and the site cleared for the construction of the Downtown Line. The buildings were preserved and now house a few restaurants, function halls and the NParks offices.