question a bit vague...but what do you guys think is the minimum/optimum stable salary to be earning in a month before u can consider to buy a house via installment.

lets say the house is at 400-500k range

just want to point out that while malaysian property generally remains out of reach for the low-mid class, rental rates are dirt cheap. makes far more sense to rent nowadays. go buy overseas if really want some brick and mortar in the portfolio...