The campus consists of four structures, two on Vine Street and two on Wood Street.
Main building (Broad and Vine Streets) Located on the northeast corner intersection of Broad and Vine Streets. Dedicated on September 6, 1890, the school's original main building established the main entrance on the frontage of North Broad Street. The building's length was 140 feet, extending eastward on Vine Street for 115 feet, bordered on the north by the very narrow Pearl Street and bounded eastward by a ten-foot-wide alley commonly known as Watts Street, which was rededicated to the school. The land was formerly a Railroad Depot, moved just north to Cahowhill Street. The exterior is a three-story building of
Victorian Gothic design, faced with "
Lee, Massachusetts" marble (the same as selected for
Philadelphia City Hall), placed on a granite base (quarried from
Conshohocken, Pennsylvania) and sited to impact majestically at the intersection by prominent architect
Edwin Forrest Durang. The building has two ornamental stone façades along Vine and Broad Streets, joined at a square-corner tower, and two brick façades at the rear. The building originally had a 150-foot marble tower topped with copper at the corner of Broad and Vine, which was destroyed by fire in 1959 and was not replaced. Initially, there were 20 classrooms, each designed to accommodate between 24 and 42 pupils. The building contained offices, a library suite, mechanical arts workshops, and, on the third floor, a hall with a seating capacity of 700, a gymnasium, and studios with natural lighting for drawing and modeling. External fire towers provided access to lavatory facilities, but no provision was made for a lunchroom. The tower, not entirely ornamental, was fitted with instruments for astronomy classes. Historically Certified in 1986 by the Historical Commission, it is classified as
Gothic Revival architecture and consistent with some important Catholic churches and institutions in the City.
Renaissance Hall-Main building addition (Vine Street) In 1953, the original three-story building received an additional two-story wing along the east side. It connected and integrated the exterior brick façade into the interior. The space was utilized for physics and biology labs, and the cafeteria. This new facility housed a sports training center, creative art studio, a multi-purpose room, and the alum association offices.
Arts Building-Howard Center for the Arts (Wood Street) As part of "A Vision of Promise" on May 30, 2017, the school held a groundbreaking ceremony for an additional building, with anticipated completion in 2018. The initial stage is the construction of a 40,000-square foot building. The arts center is named for Barry and Elayne Howard, longtime supporters and benefactors of the school. This new expanded academic facility is located about a block away at 1212 Wood Street. It includes band rooms, instrument storage space, a computer-aided design lab, a digital photography studio, a piano lab, a small theater, and an expansion for art programs. More additions to the school are planned in the Vision of Promise. The School held an unveiling ceremony at the Howard Center on Jan. 26 2023 in the Arts Center’s Black Box Theater and renamed the theater after award-winning playwright
Charles Fuller Jr. The theater's new name was suggested by a student and adopted by the Board to be "The Charles H. Fuller Jr., '56 Theater". Fuller is an alumnus of the Roman Catholic Class of 1956 and died in October 2022. == Extracurricular activities ==