(A) An application for exterior alteration of an historic landmark will be considered if the change or the treatment proposed is determined to be harmonious and compatible with the appearance and character of the historical building. An application will not be considered if found detrimental to or otherwise adversely affecting the architectural significance, the integrity of historical appearance, and the educational and historical value of the building.
(B) The following guidelines apply to exterior alterations to historical buildings:
(1) Retention of original construction. So far as practical, all original exterior materials and details shall be preserved or replaced to match the original;
(2) Height. Additional stories may be added to historic buildings provided that:
(a) The added height complies with requirements of the building and zoning codes;
(b) The added height does not exceed that which was traditional for the style of the building;
(c) The added height does not alter the traditional scale and proportions of the building style; and
(d) The added height is visually compatible with adjacent historic buildings.
(3) Additions. Horizontal additions may be added to historic buildings provided that:
(a) The addition does not exceed that which was traditional for the building style;
(b) The addition maintains the traditional scale and proportion of the building; and
(c) The addition is visually compatible with adjacent historic buildings.
(4) Visual integrity of structure. The lines of columns, piers, spandrels, and other primary structural elements small be maintained so far as is practicable.
(5) Scale and proportion. The scale and proportion of altered or added building elements, the relationship of voids to solid (windows to wall) shall be visually compatible with the traditional architectural character of the historic building.
(6) Materials, color, and texture. The materials, colors, and textures used in the alteration or addition shall be visually compatible with the traditional architectural character of the historic building.
(7) Lighting and other appurtenances. Exterior lighting and other appurtenances, such as walls, fences, awnings, and landscaping shall be visually compatible with the traditional architectural character of the historic building.
(C) The Historic Landmarks Committee shall base its decision on the following criteria:
(1) Compliance with the guidelines in division (B) above;
(2) The City’s historic preservation policies set forth in the Comprehensive Plan and the purpose statement of this chapter;
(3) The economic use of the historic landmark in relation to the proposed alteration and its relationship to the public interest in the historic landmark’s preservation or rehabilitation;
(4) The physical condition of the historical landmark; and
(5) The general compatibility of exterior design, arrangement, proportion, detail, scale, color, texture, and materials proposed to be used with the existing landmark.
(Ord. 638, passed 5-7-2014) Penalty, see § 153.99