Building design shall provide visual interest and avoid monotony and repetition relative to adjacent or nearby structures. The architecture shall be designed to provide variation and interest through the use of color, building material, detail, breaks in roof and wall lines, windows, porches, detailed cornices, substantial roof overhangs, dormers, screenings and/or other architectural elements. Windows and exterior doors shall be consistent and compatible with the materials, style, and color of the building, and shall be designed to give the facade a sense of balance, proportion, and significance. For residential projects, traditional materials such as wood and masonry are strongly encouraged for exterior facades.