The housing maintenance fund can be recovered in a few years.
The maintenance fund is the reserve fund for overhaul and medium repair of public facilities and equipment, which should be kept by the special account of the relevant unit, and no individual can use it casually, which means you can't get it back. Of course, except for the overhaul of the facilities and equipment of Foreign Minister Guan Gong, the medium repair can no longer charge you, and the minor repair is included in the property fee.