EFFECTIVE MAY 30, 2022 57 chapter 2 Foundations • Design foundations to be compatible with those of neighboring historic buildings. Do not use landscaping to disguise inappropriate foundation height or design. • Provide foundation heights of 18 inches above grade on the front facade. Reduced foundation heights may be considered for compatibility with foundations on adjacent historic buildings. Avoid slab-on-grade construction. • Design foundation materials on frame buildings so that they do not exceed the height of the finished floor. • Use materials that are similar in character to nearby historic buildings, such as brick, stone, concrete, or painted or parged concrete blocks. • Delineate the foundation level of brick buildings through some type of belt course such as soldier or sailor coursing. Materials & Exterior Finishes • Use materials and exterior finishes that complement and blend with the character of the surrounding district, such as frame, brick, or stone. • Use weatherboard, clapboard, or shiplap siding for frame buildings. Lap siding exposure should be consistent with that on adjacent historic buildings. Use smooth cement wood siding rather than vinyl or aluminum siding. Avoid boardand-batten and other exterior finishes that accentuate the verticality of an addition unless appropriate to the architectural style. • Use historically compatible roof materials such as asphalt, wood, slate, fiber-glass shingles, or standing-seam metal, which are traditionally used with the architectural style of the building. • Match surrounding historic masonry in width of the mortar joints, size and scale of the bricks, color, and texture.
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