There shall be a Zoning Board of Appeals of five members pursuant to the provisions of the Village Law, with all the power and duties prescribed by law and by this chapter. The Board of Trustees shall designate one member of the Zoning Board of Appeals to serve as Chairperson of such Board for a period of one official year. In addition to the five regular members of such Board, the Board of Trustees may appoint two ad hoc members to the Zoning Board of Appeals. Such ad hoc members shall serve on the Zoning Board of Appeals whenever absences or conflicts of interest of regular members prevent five regular members from hearing an application or applications.

The Zoning Board of Appeals may grant temporary conditional permits of not more than one year's duration for structures and uses not permitted by this chapter in the districts in which they are located, but which are necessary or desirable in connection with new building development.

In all cases where the Zoning Board of Appeals grants a variance from the strict application of the requirements of this chapter, it shall be the duty of such Board to attach such conditions and safeguards as may be required in order that the result of its action may be as nearly as possible in accordance with the spirit and intent of this chapter, including a requirement that work under such variance be commenced and diligently prosecuted within one year of the granting thereof, failing which such variance shall become null and void.