Is it safe for single storey bungalow to be built without piling? Are there any other issues to watch out for?

I am buying a subsale 2 yr old completed house. What is the procedure to check to see if all defects were sorted? Is it too late if there is defects now and I ask the current owner to sort it out with the developer b4 i take over?

On a separate note, what other info do I need to sort out before proceeding with the purchase of the house, in terms of asking about title/CF?

This post has been edited by drbone: Aug 9 2020, 10:30 PM

What's the best way to ensure a closed up maid room, with louvre door? Will the room still be stuffy?
Will installing a ceiling exhaust be of much help?

Yeah, considered that option too. But , now, decided to close up current opening and open up a new entrance.