The Westside Theatre building was designed by architect Henry F. Kilburn as the Second German Baptist Church in 1890. Nearly a century later, the space housed a discotheque, Club Sanctuary, until it was finally converted into a theatre with two stages (upstairs and downstairs) in 1973.
The Chelsea Theatre Group presented the first production – David Storey’s The Contractor – in October 1973. The building was renamed the Chelsea Westside Theatre. Under the management of Raymond L. Gaspard, the theatre was rechristened the Westside Arts Theatre from 1981 until 1990.
After an extensive renovation by new management, the venue reopened in March 1991 as the Westside Theatre. The Upstairs Theatre has a capacity of 270 seats, while the Downstairs Theatre holds 249 seats.
The Westside Theatre is closest to the 42nd St. - Port Authority subway stop on the A, C, and E lines. The closest bus stop is 9 Av./W 44 St. on the M11 line.