Latest data by the National Property Information Centre (Napic) indicate the amount of new homes being built in the near future is equivalent to 42% of the stock of 702,101 houses in the state.
Almost 300,000 new homes are being built or in the planning stage at a time when the market in Johor has hit a soft patch.
At the third quarter of 2013, construction for 116,859 homes had already started while the building of 162,579 homes have yet to start.
Meanwhile, 16,168 homes had been approved for construction in Johor in that quarter alone.
The new supply does not include new launches by Iskandar Waterfront Holdings Bhd, which is expected to increase three-fold to more than 4,000 units and is expected to remain elevated up to 2017.
Mont Kiara has in the last 20 years built an estimated 20,000 units. Iskandar Malaysia, on the other hand, has built some 40,000 units in the last three years.
