The "Theater at the Mount" was the last main building that was under construction, completed in September 2007, along with the choir and drama rooms.

Carmel football team's successes in the late 1980s and early 1990s brought Sundevil Stadium its first, and to date, only major renovation after the 1991 season, adding seats to both the home and visitor sides, raising total capacity to 11,000, making it the largest on-campus high school stadium in the state of California.

In August 2007, the stadium was the host of a Drum Corps International competition featuring Phantom Regiment, Carolina Crown, The Colts, Spirit from JSU, Blue Stars, Madison Scouts, Pacific Crest, and Pioneer.

Carmel's two-time Grammy Award-winning band[5] and orchestra, were directed by nationally recognized director Warren Torns (now retired), Garry McPherson (also now retired), and are now directed by Martin Fierro, former assistant director of Westview High School's band program.

[6] In 1988, under the direction of Tom Cole, the Marching Sundevil Band was featured in the opening scenes of the movie "Little Nikita", starring Sidney Poitier, River Phoenix, and Richard Jenkins.

They have been Gold Medal Champions for the field show tournament in the 6A Division class multiple times including 5 consecutive years from 2015-2019.

In 2006, the Marching Sundevils performed for the 11th time in the Tournament of Roses Parade in Pasadena, California.

Carmel's Music Department hosted the Holiday Bowl High School Band Competition.