[4] The district began construction of a new building to house Cape Henlopen High School in 1974.

The school was a model of 1970s architecture and echoed the educational sentiment of the day that called for minimal distraction in a classroom.

The school's very few windows were positioned in places where it would be difficult for students to gaze out of them during classroom time.

[5] The new Cape Henlopen High School incorporates energy-efficient materials and state-of-the-art technology.

It also incorporates a separate 9th-grade academy and vocational wing, eliminating the use of the Ninth Grade Campus building.

The school's expansive library features a high rising ceiling with modern light fixtures and coves cut into the wall for students to sit and read.

The first floor common area features a massive mural composing pictures of local landmarks all tinted blue.

In May 2010 Cape's Lady Vikings Lacrosse team was titled State Champions for the second year in a row.

[9] On May 23, 2013, Cape's girls' lacrosse team won its fifth straight state championship, defeating Tower Hill 12–10 at Dover High School.

Cape Henlopen competes in competitions all over the area with its Raider, Rifle, and Drill teams and its Color Guard.

The concert and marching band have over 100 members every year, and they perform in numerous local parades, as well as in competitions in places like London, Boston, Toronto, Miami, and Cleveland.

The band was started in the 1970s by Barry Eli, and since then, the group has been awarded numerous trophies and has taken many "superior" titles.

[citation needed] The school also participates in the Delaware State ProStart Invitational, a culinary competition held yearly in the Chase Center.