TDA File Not Found The page you are looking for might have been removed, had its name changed, or is temporarily unavailable. Please try the following: Check your spelling Return to the home page Click the Back button © 2021 ThenDesign Architecture LinkedIn Instagram Facebook Twitter TDA - Northern OH 4230 River Street Willoughby, Ohio 44094 Phone: 440 269 2266 Fax: 440 269 2277 TDA - Western PA 204 Fifth Avenue, Suite 401 Pittsburgh, Pennsylvania 15222 Phone: 412 621 2108 Fax: 412 904 4932