According to History of RAF Organisation

Operational Control
Opened – 1 Jan 1930 – A landing ground was constructed in 1926/27 as well as a slipway for flying boats.
RAF Far East
Feb 1942 – Aug 1945 Station under Japanese occupation
Air Command South East Asia
Far East Air Force
Closed – 31 Mar 1971 – On closure as a RAF station, it was handed over to the Republic of Singapore Air Force

Previous notes on RAF:
Pingat Jasa Malaysia
WW2 memories on the BBC
RAF visits Seletar Airbase in March 2007

Reference