No construction or installation of improvements shall commence
in a proposed subdivision until the preliminary plat has been approved
by the Plan Commission and final construction plans have been approved
by and the Director of Public Works has given written authorization.
All of the improvements required under this title shall be completed
prior to the final approval of a subdivision plat, condominium plat,
or certified survey map by the Village Board, except that in lieu
of completion of construction, a certified check, surety bond, or
letter of credit approved by the Village Administrator may be furnished.
The subdivider shall, upon completion of all the public improvements,
unconditionally, and without charge to the Village, grant, convey
and fully dedicate the same to the Village, its successors and assigns
forever, free and clear of all encumbrances whatever; together with
(without limitation because of enumeration) all land, buildings, structures,
mains, conduits, pipes, lines, plant machinery, equipment, and appurtenances
which may in any way be a part of or pertain to such public improvements,
and together with any and all necessary easements for access thereto
and/or proper use thereof.