What the Certificate of Appropriateness Review Evaluates
Frederick City's Historic Preservation Commission applies the Secretary of the Interior's Standards for Rehabilitation to evaluate proposed work. For decks, the key review criteria are: Is the deck located where it does not damage or obscure character-defining architectural features? Are the materials visually compatible with the property and neighborhood? Is the new addition distinguishable as a new construction rather than a false historic addition? Is the work reversible — can the structure be removed without damaging the historic fabric?
Most well-designed rear decks pass these criteria. Problems arise when decks are proposed on the primary facade, when they use materials visually incongruous with the period (chrome cable railings on an 1880s Victorian, for instance), or when they require removal of original architectural fabric to attach.
