Utilities wise : if you are not careful, you will end up spending large amounts on electricity for aircons. $5000-$10000 per month is not uncommon if you run aircons in multiple rooms.
Food wise : if you are a picky eater (organic, grass fed, line caught and similar) you will be paying dearly for the privilege. If you want to eat the same as "back home" (nice cumberland sausages, brands familiar to you from home etc) you will again pay multiples over and above what you paid at home.
However, if you decide to adapt and eat like what most locals eat, you can live fairly frugally.