I would definitely have a survey done. Homebound only covers you for structural defects as far as I know, but in any case wouldnt you want to know if there were any defects before you buy it? Also the survey covers things that Homebond does not. Its also worth checking yourself if there are any issues with things like heaters or any kitchen appliances that may be included in the apartment. I think many lenders will expect you to have a survey done as a condition of finance.