Within the boundaries of the Historic District, the Board shall review any proposed alteration or environmental change to property as herein defined. The Board's approval of such new construction, reconstruction, alteration or demolition shall be secured before any owner of property may commence work thereon. In reviewing proposed alteration to property, the Board shall use as evaluative criteria, the ten federal standards, "Standards and Illustrated Guidelines for Rehabilitating Historic Buildings" hereinafter referred to as "Standards and Guidelines", established by the Secretary of the U. S. Department of the Interior (originally published in 1977 and reviewed in 1990 as part of Department of the Interior regulations 36 CFR Part 67, Historic Preservation Certificates) as amended. The Standards and Guidelines pertain to historic buildings of all materials, construction types, sizes, and occupancy and encompass related landscape features and the building's site and environment as well as attached or related new construction. The Standards and Guidelines are to be applied to specific rehabilitation projects in a reasonable manner consistent with the criteria, purpose and intent of this chapter, taking into consideration economic and technical feasibility. The Standards and Guidelines are:
(a) A property shall be used for its historic purpose or be placed in a new use that requires minimal change to the defining characteristics of the building and its site and environment.
(b) The historic character of a property shall be retained and preserved. The removal of historic materials or alteration of features and spaces that characterize a property shall be avoided.
(c) Each property shall be recognized as a physical record of its time, place and use. Changes that create a false sense of historical development, such as adding conjectural features, or architectural elements from other buildings, shall not be undertaken.
(d) Most properties change over time; those changes that have acquired historic significance in their own right shall be retained and preserved.
(e) Distinctive features, finishes, and construction techniques or examples of craftsmanship that characterize a property shall be preserved.
(f) Deteriorated historic features shall be repaired rather than replaced. Where the severity of deterioration requires replacement of a distinctive feature, the new feature shall match the old in design, color, texture, and other visual qualities and, where possible, materials. Replacement of missing features shall be substantiated by documentary, physical, or pictorial evidence.
(g) Chemical or physical treatments, such as sandblasting, that cause damage to historic materials shall not be used. The surface cleaning of structures, if appropriate, shall be undertaken using the gentlest means possible.
(h) Significant archaeological resources affected by a project shall be protected and preserved. If such resources must be disturbed, mitigation measures shall be undertaken.
(i) New additions, exterior alterations, or related new construction shall not destroy materials that characterize the property. The new work shall be differentiated from the old and shall be compatible with the massing, size, scale, and architectural features to protect the historic integrity of the property and its environment.
(j) New additions and adjacent or related new construction shall be undertaken in such a manner that if removed in the future, the essential form and integrity of the historic property and its environment would be unimpaired.
(Ord. 17-08. Passed 9-22-08.)