goose 3 Report post Posted April 13, 2014 Hi, I am getting my BTO flat soon. I understand that I am not allow to hack the wall and floor tile within the first 3 years without HDB permit. I want to find out whether has anyone apply to HDB before to hack the wall and floor tile? Is the procedure for the permit easy? How much is the waterproofing?Many thanks in advance for the advice. 3 Share this post Link to post Share on other sites