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Who We Are

Founded in 1987, Architrave is an established design-oriented architecture practice with over 30 years of experience throughout South Carolina. With a focus on residential design, Architrave prides itself on its ability to integrate traditional and historic Carolina styles with a modern flair.

A small firm of talented professionals, Architrave is committed to customization and working with clients to create homes that are as unique as the families that live in them.

Our History

Architrave was founded in Columbia, South Carolina the Winter of 1987 by Allen and Dale Marshall, an uncle and nephew team. Allen’s son, Bill, worked for Architrave between his undergraduate and graduate studies at Clemson University in the early 1990’s and then settled in Charleston where he had a career working for the Architectural Review Boards at Kiawah Island and Daniel Island. Allen spent his career passionately dedicated to his craft. He designed more than fifty churches throughout South Carolina and more than a thousand residential and commercial projects.
Allen passed away in November of 2012. That year, Architrave changed ownership to Dale and Bill Marshall who rejoined the firm in 2009 and Dale and Allen moved forward as partners. The firm has called Blanding Street in Columbia home for over 30 years. Justin Washburn joined the firm in 2014. Dale and Justin primarily manage the Columbia projects while Bill leads the projects in the low country.
Through residential construction and renovation, historical preservation and religious entity construction, Architrave has made its mark on the Palmetto State and continues to do so.
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Our Team

dale marshall

Dale Marshall


A founding principal of Architrave, LLC, Dale has served as project architect for all Architrave projects. He has over 30 years of experience as a licensed Architect and has won numerous awards including two AIA South Carolina Robert Mills Awards, an AIA Columbia Award, and multiple Historic Columbia Design Awards.

Dale is primarily responsible for Architrave’s design and project coordination. He specializes in residential and religious architecture. Dale is also a licensed attorney who consults on architectural and construction issues. He is a graduate of Clemson University School of Architecture and the University of South Carolina School of Law. Dale is an active member of the Vista Guild Board, he’s the chair of Historic Columbia’s Preservation Design Awards Committee, he serves on the Historic Columbia Preservation Committee and is the former chair of the Design/Development Review Commission.

bill marshall

Bill Marshall


A founding principal of Architrave, LLC, Bill served for more than a decade as the architectural review board administrator for Kiawah Island and then Daniel Island. He is a board member of the City of Charleston’s Commercial Corridor Design Review Board. Bill is based out of Architrave’s Charleston Office and provides construction observation services for projects in the Charleston area.

Bill continues to serve as a consultant to the Daniel Island Architectural Review Board and has substantial expertise in developing community guidelines. He continues to serve as a consultant for several architectural review boards in the Charleston Area. Bill is a graduate of Clemson University School of Architecture.

justin washburn

Justin Washburn


Justin is a licensed architect and a LEED accredited professional with over ten years of experience in designing commercial and residential buildings. A graduate of Auburn University School of Architecture, Justin participated in the internationally acclaimed Rural Studio and completed his thesis at the Urban Studio. He works hard to find a thoughtful and creative solution to meet each client’s needs. He is responsible for project management, design, coordination, and documentation. Justin is also a dedicated husband and father to his two beautiful children.

Creating homes that are as unique as the families that live in them.