The educational complex that houses Brooklyn School for Music and Theatre was built in 1920 as Girls' Comercial High School, an all-girls high school serving the Prospect Heights neighborhood of Brooklyn. In 1947 the building was renamed Prospect Heights High School, although the building was located on the south side of Eastern Parkway which is commonly considered the southern border of Prospect Heights.
Upon its renaming Prospect Heights High School shifted its focus from trade and commercial based education to College Preparatory, and became a comprehensive high school. Prospect Heights High School became coeducational shortly after its renaming and refocusing of curriculum.
In 2006, Prospect Heights High School graduated its last class, and the comprehensive high school was converted into for separate campuses: Brooklyn Academy of Science and the Environment, High School for Global Citizenship, International High School, and Brooklyn School for Music and Theatre.
Notable graduates from Prospect Heights High school include the actresses Susan Hayward and Rhea Perlman, Fashion Designer Anne Klein, and Kitty Genovese.
Performances that have been staged at BSMT include Guys and Dolls; The Metamorphosis; Bye, Bye, Birdie; Romeo and Juliet; A Christmas Carol; The Colored Museum; Rogers and Hammerstein's Cinderella; A Chorus Line; Once On This Island; an annual One-Act Play Festival; Winter and Spring Arts Concerts; Chancellor Town Hall; and most recently The Effects of Gamma Rays on Man-in-the-Moon Marigolds; Steel Magnolias; Our Stories, Our Selves: A Celebration of Black History; Framing Black History.

Prospect Heights Campus from Dr. Ronald McNair Park