Brother Martin opened a temporary facility at Catholic High School in Baton Rouge for their students.

Brother Martin High School reopened its doors in New Orleans in January 2006 sustaining minimal flood damage to the bottom floors.

Brother Martin High School is located on Elysian Fields Avenue in Gentilly, an established residential neighborhood in New Orleans.

The school campus includes Cor Jesu Hall, the oldest building on the current campus; built in 1954, the Conlin Gymnasium (now fully air-conditioned), the largest high school gym in the city, and the newest components on campus; the Thomas F. and Elaine P. Ridgley Fine Arts and Athletic Center, commonly known as the "Ridgley Center", E. A. Farley Field, used for Soccer, Baseball and non-varsity football, the Roland H. & Macy Paton Meyer Science and Mathematics Building, and the James B. Branton Chapel.

Renovations were also made to the Cor Jesu building, second-floor resource center, Library, Benson Mall, and Food Services.

In January 1999, over 400 alumni, Brothers and friends attended the dedication ceremony for the Thomas F. and Elaine P. Ridgley Fine Arts and Athletic Center.

Between 1945 and 1947 the Brothers of the Sacred Heart, looking toward the future had purchased more than 7 acres (28,000 m2) of property, primarily from the Farley family, in the growing residential area of Gentilly.

By 1952 Brother Martin Hernandez as provincial planned and supervised the construction of Cor Jesu High School on the Gentilly site.

Through his Youth Progress Program Archbishop Joseph Francis Rummel contributed $475,000 toward construction and furnishings of the new school.

The Roland H. & Macy Paton Meyer Science and Mathematics Building opened for the 2007–2008 school year on August 17.

The Meyer Building is located at the corner of Elysian Fields Avenue and Sumpter Street, the former site of the Brothers’ Residence (circa 1955).

The James B. Branton chapel is settled in front of the Roland H. & Macy Paton Meyer Science and Mathematics Building.

Brother Martin's basketball teams won state championships in three of its first five seasons following the merger of St. Aloysius and Cor Jesu.

In 1974, the Crusaders defeated the Catholic League rival Holy Cross in the championship game, led by the future University of Kentucky and NBA player Rick Robey.