The following additional regulations shall apply to the rehabilitation and reuse of existing historic structures, unless it is so determined by the reviewing board that the restoration of any such structure to its historic state would be inconsistent with the purpose and intent of this article.
A. Preservation of character.
(1) Each property shall be recognized as a product of its own time. Alterations that seek to create a false sense of historical development are discouraged.
(2) Changes to a building that have taken place over time are evidence of its history and development. Those changes that have acquired significance in their own right shall be recognized and preserved.
(3) Where architectural or site features are determined to contribute to the character of the property or the district, proposed alterations or additions shall be designed to minimize the impact on those features.
(4) New additions, exterior alterations, or new construction shall not destroy historic materials or general features that characterize the property. The new work shall be compatible with the massing, size, scale and architectural features of the property and the surrounding neighborhood, to protect the integrity of the property.
(5) Additions or alterations to structures shall be constructed in such a manner that, if removed in the future, the essential form and integrity of the structure and the site would be unimpaired.
(6) Design elements on historic structures shall not be altered or covered in a manner that would adversely impact the facade and architectural character of the structure.
B. Preservation, repair, and replacement of openings.
(1) Original window, storefront, and door openings shall not be reduced in size or covered. Transoms must be retained and uncovered during applicable building renovations.
(2) Original window, storefront, and door openings that have been covered or filled in on a building facade shall be restored during applicable building renovations.
(3) Replacement windows shall fill the original size of each opening and be of similar style (ex. double hung) and shall utilize true divided lights or simulated divided lights when matching the original mullion and/or muntin configuration. The use of interior-only grids or grids between the panes of glass is prohibited.
(4) Lowered ceilings shall have a soffit at each window that allows retention of the full window height.
C. Historic masonry treatments.
(1) Masonry on existing historic structures that has not previously been painted shall not be painted unless deterioration has progressed so far that a protective surface coating is needed. In such cases, a breathable masonry paint or stain shall be used.
(2) Masonry that has previously been painted shall be repainted with a breathable masonry paint or restored to unpainted masonry.
(3) If paint is to be removed from masonry surfaces, the gentlest effective paint removal method available shall be employed so as to avoid damage to historic masonry and mortar. Sandblasting and similar methods should never be employed.