§ 62.705. Standards for Additions to Existing Structures.

a.

Facades.

1.

Wood. Additions to wood-sided structures must be sided in wood and must match the existing siding in size, shape, color, orientation, and texture.

2.

Masonry. Additions to stuccoed structures must be clad in stucco to match the existing in color, composition, and texture.

Additions to brick structures must be clad with brick, or wood, vinyl, or aluminum siding. If an addition is clad with brick, the color, pattern, and mortar shall match the existing. If the addition is clad with wood, aluminum or vinyl siding, the siding must be horizontally oriented and 4"—10" wide and must be compatible with the existing structure.

Additions to concrete block structures must be of matching concrete block and must have mortar joints that match the existing.

3.

Aluminum or vinyl siding or other simulated wall cladding. Additions to structures sided with aluminum or vinyl siding or other simulated wall cladding must be clad with materials to match the existing in size, shape, color, orientation, and texture.

4.

Facades with a combination of materials. Additions to structures with a combination of cladding materials must be sided using one or more of the existing cladding materials in a manner that is in character with the style and period of the structure.

b.

Roofs. Roofs on additions must have similar shape, materials, and pitch as the existing structure. A flat or low pitched roof that is not visible from the ground may have a different material than the rest of the existing roof. Shed roof additions are allowed on the rear of any building, when said additions are not visible from a public right-of-way or park.

c.

Windows. Windows on additions must have the same orientation and be of a similar size to the original windows of the principal facade except that if the addition is on the same plane as the existing principal facade, then the windows of the addition must match the original windows in orientation, size, materials, and configuration.

d.

Porches. Porch additions must have a roof type that is either similar to the existing roof or is in character with the style and period of the building.

e.

Scale, massing, and height. Additions to existing structures must have similar scale, massing, and height to the existing structure.

f.

Setbacks. Minimum and maximum setbacks for additions (including to both principal and accessory structures) must conform to the minimum and maximum setback standards applicable to the underlying zoning district as provided in Chapter 58, except that a lesser or greater setback may be approved by certificate of appropriateness upon a finding that the lesser or greater setback is consistent with the prevailing pattern of contributing development in the vicinity of the proposed work and where a lesser setback would not result in buildings (whether principal or accessory) being within 10' of each other (without regard for whether or not the buildings are located on different lots), nor any building (whether principal or accessory) being within 5' of a lot line.

g.

Other. Any other request requiring a building permit and determined by the historic preservation officer, or designee, to have an impact on an historic landmark or the exterior of a structure in an HP overlay district shall be reviewed using the most closely analogous standards of this Chapter.

(Ord. of 9-16-1991, Doc. #25099; Ord. of 2-22-1993, Doc. #26392; Ord. No. 2016-60, § 1, 8-29-2016, Doc. #1608291201)