Sort of. So far as I can tell, you can withdraw to buy housing but I don’t think you can pay rent out of it.

The loans are also 75% max loan-to-value so I think until you can get 25% of the purchase price in your account you have to pay CPF and rent (or live with family).

Also, not an economist, but I suspect the forced savings has a wildly inflationary effect on housing prices. You can’t do much else with the money until you retire, so I would guess the price of housing rises up to match the forced savings rate.