The high school occupies a campus within of the
Great Smoky Mountains National Park. There are scenic views of the park's peaks and nearby Walland Gap that divides the
Chilhowee Mountain range into two sections. Heritage High School occupies two main educational buildings. The Main school building consists of three two-story academic wings containing counseling and office suites, a sizable common area, theater, gymnasium with locker rooms and additional class space for physical education, art and band along the gymnasium perimeter. A covered walkway leads to the
vocational education building with large class space for vocational training programs. Athletic facilities include the James D. Lillard Field/Jack Renfro Stadium utilized for American football and track & field. Additional athletic facilities include a soccer field, side-by-side baseball and softball facilities, exterior hard tennis courts and a large gymnasium used for basketball, volleyball and wrestling competition. Located adjacent to stadium is the Wilbur Shoun Athletic Fieldhouse used primarily for weight training. Also present on campus is the Heritage
Planetarium whose programs were utilized by local schools and general public. The Planetarium is attached by breezeway to the main school building. The planetarium was closed on September 23, 2010, following conflict between Director Thomas Webber and Blount County School Board on the Planetarium's direction, budget and the director's salary reduction. As of March 25, 2024, there are no current plans to reopen the facility as Webber resigned his position. ==Faculty==