Building Diversity. Projects generally should provide variety in the design, size and massing of buildings. Repetitious design resulting in a monotonous similarity of appearance is to be avoided. Variety should not be contrived, but evolve from the requirements of the building, the materials and structural systems used. Design elements such as varied building setbacks, diversity in building heights, roof styles, and front entries are required. In general, the following examples would be considered "contrived" diversity, and, although not prohibited, would not be considered sufficient in and of themselves for providing variation between buildings:
1. Applied external ornamentation, such as altering the siding or trim without making substantial changes in the design and form of a building.
2. Constructing "mirror image" buildings where the floor plans are inverted.
3. Altering the location or size of windows or doors without making substantial changes in the design or form of the building.
4. Making minor alterations in the roof line which do not substantially differentiate the building from neighboring structures.