Relocating HDB maindoor in RENOVATION WORKS Posted February 9, 2018 7 hours ago, snoozee said: you do not "own" your flat. your flat "ownership" is under a 99 years (or whatever balance years there is) lease from HDB and they have the rights to allow or disallow you to do whatever your want to it. So in this case, HDB as the actual "owner" of your flat has disallowed you to relocate the main entrance. Yes sir. No doubt that is true but I have also come across forumers here (perhaps inactive now) that have successfully relocated their entrance. Would just like to find out more about the process/regulations etc.