In accordance with state law (765 ILCS 205/6, 205/7, and 205/8),
any plat or part thereof may be vacated by the owner of the tract,
at any time before the sale of any lot therein, by a written vacation
instrument to which a copy of the plat is attached. If there are public
service facilities in any street, other public way, or easement shown
on said plat, the instrument shall reserve to the Village or other
public entity or public utility owning such facilities the property,
rights-of-way and easements necessary for continuing public service
by means of those facilities and for maintaining or reconstructing
the same. The vacation instrument shall be approved by the Board in
the same manner as plats of subdivision and shall also be approved
by the County Engineer, the Highway Commissioner, the District Engineer
of the State Department of Transportation, and the public utilities.
In the case of the platted tracts wherein any lots have been sold,
the written vacation instrument must also be signed by all the owners
of lots in said tracts.