This is what I think can be explored, as in a case study? But I don't know all the intricacies of HDB financing, so others can comment.
Baseline Assumption
3-rooms HDB flat, fully paid using CPF, valued $400,000 (example, for ease of illustration). Cash position $300,000.
Exploration
Sell the existing HDB flat, and buy another 3-rooms HDB flat of newer lease. Valued $400,000 +/-. Title for husband and wife, but mortgage loan using wife only. DP 20% using cash, $80,000. Finance installment using cash.
Buy a PC, $1,200,000, completion in 5 years, title for husband and wife, but mortgage loan using husband only. DP 20% using cash, $240,000. Finance installment using CPF.
At the end of MOP for HDB flat, which coincides with condo completion, sell HDB flat. Pay down condo mortage using all the OA amount in CPF.
Feasible?
