You can consider taking an equity or term loan on the investment property when the value has increased while still keeping the property.
This can be done only with private properties when the current Market Value of the property is higher than the current loan outstanding.
Example below for Educational Purpose only:
Market Value of Property is S$1,500,000.
Loan outstanding is S$500,000.
Loan can be increased to 70% of Market Value = 0.7 x $1,500,000 = S$1,050,000.
è Additional loan of $1,050,000 – $500,000 = S$550,000 can be obtained, subject to approval.
In the event when CPF was utilized to pay for the property, this amount, together with the accrual interest, has to be deducted from the loanable amount to work out the equity loan.