84
Design Standards for Additions to Historic Buildings: 1. It is appropriate to locate additions to historic buildings on the rear elevation to ensure minimal impact to the rhythm of the streetscape or character-defining open spaces. 2. It is appropriate to consider the height, scale, size, and proportion of an addition to ensure that it is compatible with the existing structure and does not overpower it. 3. It is appropriate to ensure that an addition is compatible with the historic building in massing, style, location, orientation, scale, height, materials, roof form, fenestration, details, and texture. 4. It is appropriate to locate additions so that there is no disruption of the established rhythm of building mass and open space on the blockface. 5. It is appropriate to site additions so that no removal of mature trees or plantings is required. 6. It is inappropriate to locate additions in areas necessitating the relocation or demolition of historic outbuildings. 7. It is appropriate to design additions using contemporary architecture provided they adhere to the characteristics of the historic district including: massing, height, proportion, scale, form, setback, and details, and the design principles of symmetry, hierarchy, rhythm, and repetition. 8. It is appropriate to design new additions in a reversible manner, so that they can be removed from the original building without loss of historic architectural fabric. 9. It is appropriate to use traditional materials that were available at the time the historic building was constructed. Select building materials that are consistent with the historic building’s materials. 10. It is appropriate to use materials in traditional ways so that additions are in harmony with the buildings in the historic district (i.e. horizontal siding). 11. It is inappropriate to use synthetic (vinyl, aluminum, PVC, plastic, resin, fiberboard) siding and details on additions on landmarks or in the local historic districts. 12. Utilize similar roof forms and pitches. Align the height of the eave line of a new addition with the eave line of the original building. Differentiate the junction between old and new construction by recessing the wall plane, or adding a corner board at the junction between old and new construction. 13. It is appropriate to match the foundation height, style, and materials of an addition to the original building, however, differentiate the junction of old and new by recessing the foundation and wall plane of the new addition. 14. It is appropriate to consider the significance of additions and alterations that are at least fifty (50) years old to determine their contribution to the building’s character- defining features. For example, a Craftsman-style porch on an earlier Queen Anne- style house illustrates the evolution of the house, and may be considered character- defining for that house.
Made with FlippingBook - professional solution for displaying marketing and sales documents online