Seminar, three hours; outside study, three hours. Preparation: satisfactory completion of intermediate-level studios (courses 412, 413, 414, 415) or M.Arch. II student. Course 403A is requisite to 403B, which is requisite to 403C. In-depth research phase, with focus on number of different special topics in architecture and urban design. In Progress grading (credit to be given only on completion of courses 403B and 403C).