Only shared property fees. Who proposed it?

Li Ka-shing, a Hong Kong businessman, first proposed pool area. After it was put forward at that time, it was supported by the Hong Kong government and local real estate and property. Finally, I learned from the mainland that the pool area was implemented when buying and selling houses, which has continued to this day.

The pool area includes public foyer, corridor, corridor, public toilet, lobby, elevator and stairwell, elevator shaft, elevator machine room, water pump room, water tank room, fire escape, hot water boiler room, elevator lounge, power distribution room, garbage chute, pipeline shaft, fire control room, gas surge chamber, air-conditioning machine room, guard on duty and property.