(a) A subdivision and land development ordinance may provide for the voluntary proffering by a landowner as a requirement of final plat approval for a development project.
(b) For purposes of this section, a "voluntary proffer" is a written offer by a landowner to a governing body whereby the landowner offers to satisfy certain reasonable conditions as a requirement of the final plat approval for a development project. A voluntary proffer made to a governing body shall be in lieu of payment of an impact fee as authorized by section four, article twenty, chapter seven of this code: Provided, That no proffer may be accepted by a governing body in lieu of an impact fee that would otherwise go to schools without the approval of the county board of education.
(c) For purposes of this section, a condition contained in a voluntary proffer is considered reasonable if:
(1) The development project results in the need for the conditions;