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 firm description & mission


Campbell Thomas & Co. is a environmentally and community oriented firm of architects and planners with an award winning record in greenĚ transportation, community planning and revitalization, accessibility, historic preservation and practical design and construction.

The firm was founded in 1976 by architects Robert P. Thomas and James C. Campbell who originally met through volunteer work on a variety of transportation, preservation and conservation projects. The firm's mission has focused on developing projects that are socially, environmentally, and technology innovative and important.

Campbell Thomas & Co. has been recognized as a leader in the fields of conservation, preservation and community development by awards from the National Trust for Historic Preservation, the Pennsylvania Environmental Council, SEPTA, Preservation Pennsylvania, the American Institute of Architects, the Pennsylvania Historical and Museum Commission, and the Foundation for Architecture.

The firm is noted for significant public service, especially in the areas important to planning for its projects and clients. The partners give service to such boards and commissions as the East Coast Greenway Alliance, the Preservation Alliance of Greater Philadelphia, the Accessibility Advisory Board of the City of Philadelphia, the Friends of Philadelphia Parks, and the Schuylkill River Greenway Association.

Campbell Thomas & Co. has performed work in Delaware, Maryland, Virginia, Pennsylvania, and New Jersey over the last twenty years ranging from rail-trail studies, to historic preservation, community planning and development, to mapping. Our clients have included boroughs, community development corporations, non-profit organizations, planning commissions, institutions, and private businesses and residents. We have conducted an extensive tour program for several non-profit organizations, which has given us a good knowledge of the region, its historic and natural resources and transportation needs, and the aspirations of its communities.

contact information





postal address

1504 South Street
Philadelphia, PA 19146


general information:
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firm bios

James C. Campbell, AIA, Partner, Registered in Pennsylvanian & New Jersey
  Robert P. Thomas, AIA, Partner, Registered in Pennsylvanian & New Jersey
  Harry S. Murray, NCARB, Registered Architect, Pennsylvania & New Jersey
  Eric Horowitz,  Project Manager & Project Designer
  Mike Szilagyi, Planner, Project Designer
  Felipe Velasquez,  Project Manager & Project Designer