W+CO designed extensive interior renovations to 17,000 square feet on three floors of the David Rittenhouse Laboratory Building. DRL is the home to the University of Pennsylvania’s Physics and Astronomy program, as well as the Mathematics department. Many other disciplines also hold classes in the building due to its ample lecture space, making DRL one of the most heavily used at the university. The original building was constructed in 1954, with a four-story expansion added in 1967. The project shown here is a contemporary lecture hall that was transformed into a state-of-the-art learning environment from an existing space. W+CO selected wood paneling, a new seating system, finishes, audio-visual screens and technology systems, lighting and acoustic considerations. Other DRL spaces that were renovated include classrooms, offices, laboratories and extensive mechanical upgrades and replacements. The construction cost for all DLR renovations was $1,200,000.