Tag: Preservation

Preservation Brief 14: New Exterior Additions to Historic Buildings: Preservation Concerns

Detail of the side of a brick house and smaller brick and glass addition at dusk.

Detail of new addition shown in Figure 4. Photo: © Maxwell MacKenzie.

PRESERVATION BRIEFS

Anne E. Grimmer and Kay D. Weeks


A new exterior addition to a historic building should be considered in a rehabilitation project only after determining that requirements for the new or adaptive use cannot be successfully met by altering non-significant interior spaces. If the new use cannot be accommodated in this way, then an exterior addition may be an acceptable alternative. Rehabilitation as a treatment “is defined as the act or process of making possible a compatible use for a property through repair, alterations, and additions while preserving those portions or features which convey its historical, cultural, or architectural values.”


The topic of new additions, including rooftop additions, to historic buildings comes up frequently, especially as it relates to rehabilitation projects. It is often discussed and it is the subject of concern, consternation,

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