Charles W. Reppenhagen Architect is now in the Tucson, Green Valley, AZ area and proud to lend a personal touch to the architectural design of the area. From adding and altering existing homes to preserving the appeal of longstanding historical structures we do it with a keen attention to detail. |Year Established: 2000.. From adding to and altering existing homes to preserving the appeal of longstanding historical structures,we do it all with competitive prices and a keen attention to detail.