Working closely with Denver’s Division of Theatres and Arenas, Semple Brown Design considered many options before launching the final concept for the Ellie Caulkins Opera House. The firm had been in discussions with the City as early as 1993, trying to solve this unique puzzle. To begin the design process, members of the firm first considered the state of the old Auditorium Theatre and the needs of the people and organizations that would eventually use the new theatre. One of the most difficult challenges facing the construction team was demolishing the interior of the building while leaving the historic exterior in tact.