I think that those 2.5 milliom square meters includes parking lots and driveways.The problem is not the room but the lack of infrastructure- if they want to build 2.5 million square meters they need to upgrade all of the existing roads in the area or there will be HUGE traffic jams there 24/7.
It's not empty space. Many buildings. You sure that all of them will like the idea to move? Plus im sure many citizens of Bat Yam wouldn not like the idea that high rises will block their view to the sea and block the wind from the sea.^^^^^^
why won't get build ?
it's has been approved by the municipal committee and also by the regional committee - if so it has good chances to be built in the mid-long term future,maybe in few years if there won't stand any bureaucracy.