property bubble created when the threshold for rental market surpassed the demand.

Properties are meant to be for own stay and maybe 30% for rental in a healthy economy.

In KL/Selangor sometimes u see condo where more than 60% of the units are for rental
Developers selling at future prices always contributes to the bubble.

Supply for new condo are also not controlled, in KL/Selangor, more than a 1000 units pop up every month.

when more investors are having negative cash flow in and oversupply market, the bubble are just waiting to burst