(1) Acceptable materials for any construction, additions, remodeling or rehabilitation activities to the exterior of the structures;

(2) Appropriate architectural character, scale, and detail for any construction, additions, remodeling or rehabilitation activities;

(3) Acceptable appurtenances to the structures;

(4) Acceptable textures and ornamentation to the exterior of the structures;

(5) Acceptable accessories on structures;

(6) Such other building regulations which would have impact on the buildings;

(7) Acceptable standards for changes to noncontributing resources within the district; and

(8) Acceptable signage.