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<br />The maintenance of any historical structure or site shall in no way involve any direct physical change except for the <br />general cleaning and upkeep of the landmark. The Commission shall encourage the proper maintenance of all <br />structure or sites (appendix A: Minimum Maintenance Standards). <br /> <br />B. Treatment <br /> <br />Treatment shall be defined as any change of surface materials that will not alter the style or original form. Such <br />improvements include re-roofing, glazing, or landscaping lawns and may involve a change that can potentially <br />enhance or detract from the character of the landmark. A treatment change of any surface whether on the landmark <br />or in its environment may require a Certificate of Appropriateness if it significantly alters the appearance of the <br />landmark. Although these kinds of changes may not require a Building Permit, a Certificate of Appropriateness <br />may be necessary. The commission should review the proposed treatment for character and style consistency wi th <br />the original surfaces. <br /> <br />C. Renovation and Additions <br /> <br />Renovation is the modification of a structure, which does not alter the general massing while an addition, is a <br />change in mass. A modification, which involves the removal of a part of the landmark, should be considered <br />under demolition (see demolition). <br /> <br />Additions to landmarks should not detract from the original form and unity of the landmark and should not cover <br />singular examples of architectural detail. Additions to landmarks should be added in a manner that does not disrupt <br />the visible unity of overall appearance of the site. The proportions, materials and ratios of the existing structures <br />should be carried through in the additions. Care should be taken not to change or alter the following: <br /> <br /> 1. Structure—–Necessary structural improvements, where safety demands should be accomplished in such <br />a way as to cause minimal visual change to the original style and construction. <br /> <br /> 2. Material—Additions and improvements involving any new material in the landmark should be of <br />the same material as the original. It should be the same size and texture. An alternative material may be <br />allowed if it duplicates the original. <br /> <br /> a. wood—all wood trim should conform with existing trim in shape and size. <br /> <br />b. siding materials—the Commission discourages the covering or alteration of original materials with <br />additional siding. Structures already sided with incompatible materials should be returned to a siding similar to the <br />original when renovation is considered. <br /> <br />D. Demolition <br /> <br />Historic landmarks shall not be demolished. When a landmark poses a threat to the public safety, and demolition is <br />the only alternative, documentation by way of photographs, measured drawings, or other descriptive methods <br />should be made of both the exterior and interior of the landmark. The person or agency responsible for demolition <br />of the landmark shall be responsible for this documentation. <br /> <br />E. Moving <br /> <br />The moving of landmarks is discouraged, however, moving is preferred to demolition. When moving is necessary, <br />the owner of the landmark must apply to the Commission for a Certificate of Appropriateness. <br /> <br />F. Signs <br /> <br />No neon or flashing signs will be permitted unless they are original to the structure. Billboards and super-graphics <br />will also be disallowed. Only one appropriate identifying sign will be permitted per business. <br />