In the 1980s and 1990s, the school moved towards computerization and renovations occurred around the campus.
The biggest change during this era was the creation of an on-campus parking lot and the closure of Bancroft Street, which previously divided the campus into two separate sections.
In 1997, the school celebrated its 75th anniversary.
The school continues to grow in the new millennium, and is embarking on an extensive building campaign which calls for most of the school being demolished and rebuilt to meet modern standards of building codes and architectural tastes.
The school will also feature the latest in technology made readily available to its students and faculty.

On June 2, 2006, together with the San Diego mayor Jerry Sanders, the Auxiliary Bishop of San Diego Salvatore Cordileone, the school's President John Keller O.S.A., ASB President Alexander Guittard, and various members of the Augustinian and general school community, the school broke ground for the first phase of the school's building campaign.

Work commenced in the summer of 2006 and was completed in the fall 2007 for Phase One.
The second phase consisted of the new Saint Augustine Commons, a multipurpose gymnasium and meeting space.
Work began in late 2015 and was completed in 2017.
Phase Three focused around The Raymond Center for The Performing Arts, a theater, new weight room and band room.
Construction utilized the old Dougherty Gym and spanned from 2017 to 2018.
In the 1980s and 1990s, the school moved towards computerization and renovations occurred around the campus. The biggest change during this era was the creation of an on-campus parking lot and the closure of Bancroft Street, which previously divided the campus into two separate sections. In 1997, the school celebrated its 75th anniversary. The school continues to grow in the new millennium, and is embarking on an extensive building campaign which calls for most of the school being demolished and rebuilt to meet modern standards of building codes and architectural tastes. The school will also feature the latest in technology made readily available to its students and faculty.
On June 2, 2006, together with the San Diego mayor Jerry Sanders, the Auxiliary Bishop of San Diego Salvatore Cordileone, the school's President John Keller O.S.A., ASB President Alexander Guittard, and various members of the Augustinian and general school community, the school broke ground for the first phase of the school's building campaign.
Work commenced in the summer of 2006 and was completed in the fall 2007 for Phase One. The second phase consisted of the new Saint Augustine Commons, a multipurpose gymnasium and meeting space. Work began in late 2015 and was completed in 2017. Phase Three focused around The Raymond Center for The Performing Arts, a theater, new weight room and band room. Construction utilized the old Dougherty Gym and spanned from 2017 to 2018.
St. Augustine High School (San Diego)