People
Justin Detwiler

Justin Detwiler joined John Milner Architects in 2005 and currently serves as a Senior Project Designer. His experience includes architectural design and historic preservation, and he manages both residential and institutional projects.  His strong attention to detail is informed by his deep understanding of historic precedent. Justin received his Bachelor of Architecture degree from Philadelphia University and has served as an Adjunct Professor in the school’s College of Architecture and the Built Environment (now Jefferson University) since 2003.  A resident of northwest Philadelphia, Justin is active within the city’s historic preservation community and serves on the Architectural Committee of the Philadelphia Historical Commission, along with the Property Committees of The Wyck Association and The Philadelphia Society for the Preservation of Landmarks. He has also served on the Board of Directors of several non-profit organizations including Hidden City Philadelphia and the Elfreth’s Alley Association.  He is a member of the Preservation Alliance for Greater Philadelphia and was a founding member of it’s “Young Friends” group. A native of northeastern Pennsylvania, Justin studied at the American University of Rome, Italy and was selected for England’s prestigious “Summer School” of the Attingham Trust for the Study of Historic Houses and Collections in 2013. He was named a Royal Oak Foundation Scholar and received the Edward Maverick Prize from the New York Community Trust in 2013.  Justin’s designs have been published in Architectural Digest, Period Homes, Traditional Home, The Classical American House, Classical Interiors: Historical & Contemporary and Vintage House: A Guide to Successful Renovations and Additions. As the owner of Three Evergreen Antiques since 2004, Justin enjoys collecting and selling American and European antiques and decorative arts.

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