Should you sell your HDB flat immediately after the 5th year or should you wait? If you're not already aware, there's 2 school of thoughts on this issue. Sell Immediately Upon MOP Remember how much you bought your BTO flat for? $250k - $300k? How much can you sell it for today? $450k - $550k? 1.5x , 2x of your purchase price? Do you remember how...