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-4- 0 <br />the general massing while an addition is a.change in mass. A modification <br />which involves the removal of a part of the landmark should be considered <br />under demolition (see Demolition). <br />Additions to landmarks should not detract from the original form and unity of the <br />landmark and should not cover singular examples of architectural detail. Additions <br />to landmarks should be added in a manner that does not disrupt the visible unity <br />or overall appearance of the site. The proportions, materials and ratios of the <br />existing structures should be carried through in the additions. Care should be <br />taken not to change or alter the following: <br />1. Structure - Necessary structural improvements, where safety demands, should <br />be accomplished in such a way as to cause minimum visual change to the <br />original style and construction. <br />2. Construction and Style - All work should be done in the architectural style <br />and in a technique compatible with that of the original structure. Change <br />that alters, removes, or covers existing significant stylistic detail shall <br />not be permitted. A change which adds detail of another style will not be <br />permitted. <br />3. Materials - Additions and improvements involving any new material in the <br />landmark should be of the same material as the original. It should be the <br />same size and texture. An alternative material may be allowed if it duplicates . <br />the original. <br />a. wood - all wood trim should conform with existing trim in shape and size. <br />b. siding materials - the Commission discourages the covering or alteration <br />of original materials with additional siding. Structures already sided <br />with incompatible materials should be returned to a siding similar to <br />the original when renovation is considered. <br />D. Demolition <br />Historic landmarks shall not be demolished. When a landmark poses a threat <br />to the public safety, and demolition is the only alternative, documentation <br />by way of photographs, measured drawings, or other descriptive methods should <br />be made of both the exterior and interior of the landmark. The person or <br />agency responsible for demolition of the landmark shall be responsible for this <br />documentation. <br />E. Moving <br />The moving of landmarks is discouraged, however, moving is preferred to <br />demolition. 6Jhen moving is necessary, the owner of the landmark must apply to <br />the Commission for a Certificate of Appropriateness. <br />F. Signs <br />No neon or flashing signs will be permitted unless they are original to the • <br />structure. Billboards and supergraphics will also be disallowed. Only one <br />appropriate identifying sign will be permitted per business. <br />