$2500 for rental is rather much on the high end, considering that you can rent an entire 3 bedroom HDB in the district 10 areas for about $2700. If you don't have visitors often, you should consider renting a room somewhere in the bukit gombak/Chua chu kang area. It's near to jurong, but far enough away from the jurong "CBD" area such that rental prices for a room won't be beyond $800. Even $800 might be a high estimate for that.