Products and Services


Change is coming

Welcome to PreserveList, Preservation Maryland’s online preservation services directory. This website is currently under construction, but listings are still accessible.

PreserveList was developed to connect preservation service providers with customers that are looking to care for their historic structures.  After the site’s full relaunch on January 1, 2023, PreserveList will be a free service to all, both those looking for preservation services and those interested in listing their relevant services.

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Daniel T. Campbell, AIA

Architectural History, Architecture & Planning, Engineering

Daniel Campbell, AIA is a multi-state licensed architect with over 30 years of experience in architecture, specializing in historic preservation. Prior to his current practice, Dan was employed for 14 years with John Milner Architects of Chadds Ford, PA, a nationally-known, award-winning architectural firm lead by John D. Milner, FAIA. Dan conducts architectural restoration and rehabilitation projects through all phases of the process including building surveys, measured drawings, code analysis, conditions assessment, restoration design, adaptive re-use design, construction documentation, bidding, and contract administration. Dan produces historic preservation plans; conducting architectural conditions-assessments himself, while directing teams of structural and MEP engineering consultants, materials conservators, and professional estimators.  Projects have included dozens of significant National Register Listed and National Historic Landmark buildings.