For its 100th birthday in 2014, the Sheridan Opera House constructed the previously demolished historic entry vestibule onto the North Oak Street park. The vestibule serves two purposes: to improve building efficiency by acting as a barrier between the outdoors and the box office, and to improve the theater's external identity by matching its rich interior design.

The entryway features beveled glass, gold leaf on black doors, and a roof of ceramic tiles. The historic building was the first venue in Telluride beautiful enough to host ballroom dances, opera performances, and decadent dinners. The Sheridan Opera House also played a vital role in the founding of the Telluride Film Festival, serving as the festival's first — and still its most iconic — venue. Other projects for the Opera House include a design proposal for a new recording studio, with a control room located in a renovated basement space linked to the main stage, which would also enable live music to be broadcast.