How does Simon Cheong know that? What's Simon's vested interest?
The Singaporean property market is a large, artificial market driven by the government. Also the expatriate rental market is unstable as it ebbs and flows according to global market turns. With the global credit crunch (less cash available for investments), decline of hedge funds (less new funds basing in Singapore), and on going sub prime crisis (less US overseas investments), I'm quite curious how he come to that conclusion.
The ppty market across Asia has already peaked and is now at the point where investors are trying to offload inventory, but are yet unwilling to reduce prices. Perhaps Cheong boy is trying to raise short term prices in order to off load his own investments.