The Historic Preservation Commission shall have the power to grant waivers from the strict requirements of this chapter for the installation of certain signs, as follows:
A. 
Where by reason of the location of the tax lot, building or storefront, the Historic Preservation Commission concludes that it is reasonably necessary for the sign to be located on some other tax lot, building or storefront in order for the sign to adequately serve its function, the Historic Preservation Commission may grant a waiver from the provisions of this chapter and permit a sign to be located on some other tax lot, building or storefront, on the condition that the sign is included on the sign plan of that other tax lot, building or storefront.
B. 
Where by reason of the configuration of the tax lot, building or storefront, or by reason of the use or uses made of the tax lot, building or storefront, the Historic Preservation Commission determines that the architectural balance or integrity of the facade of the tax lot, building or storefront is protected, enhanced or preserved by approving additional signs for the tax lot, building or storefront, or that additional signs are reasonably necessary to identify the use or uses therein, the Historic Preservation Commission may waive the requirements of the appropriate sections of this chapter and approve additional signs for the tax lot, building or storefront. In the event that such a waiver is granted, only one sign on the tax lot, building or storefront may include the name of the enterprise or establishment. This waiver will in no way change the size of the signs permitted on any one tax lot, building or storefront pursuant to this chapter.
C. 
Where a retail, office, business or professional use desires to have a sign painted on glass, the Historic Preservation Commission may waive the requirements of this chapter, and grant a permit for such a sign, but only in the event that the Historic Preservation Commission finds that because of the design and configuration of the tax lot, building or storefront, there is no other reasonable location for the sign that will adequately apprise the public of the location of the enterprise or the services or wares offered. In granting such a waiver, the Historic Preservation Commission may allow only part of the requested sign to be on a window, and require that the rest be located elsewhere.
Nothing in this chapter shall be construed to mean that any tax lot, building or storefront is entitled to a waiver under this article as of right. Waivers are to be discretionary with the Historic Preservation Commission, and the Historic Preservation Commission may approve, approve with conditions, or deny any request for a waiver under this chapter, and in its determination, the Historic Preservation Commission may consider the zone in which the sign is to be located, the surrounding streetscape and other existing or proposed signs, and the sign's appearance, color, lettering, size, texture of materials, design, location, position and method of attachment, and lighting.