A.
The provisions of the Cannonsburg Historic Area Overlay District (the "overlay" or "overlay district") are in addition to the provisions of the existing zoning districts in which the lands within the overlay are located. Lands within the overlay are subject to both the provisions of the existing zoning districts and the overlay district; in the case of conflicts between the provisions of the overlay and those of the existing zoning districts, the provisions of the overlay shall control.
B.
The Township hereby determines that the unincorporated settlement of Cannonsburg has historic and cultural significance that is worthy of preservation for the public benefit. Accordingly, the purpose of the overlay district is to preserve, safeguard and enhance the heritage of the Township by promoting the preservation of the Cannonsburg Historic Area, which in its various components reflects the cultural, social, economic and architectural history of the Township.
C.
Further, the purpose of the overlay district is to stabilize and enhance property values within the overlay; to permit flexibility in the arrangement and use of property, consistent with the historic traditions of the overlay; and to preserve the historic identity of the settlement of Cannonsburg.