The current building is located on a site, located on Granville Pike (State Route 37). The building consists of two wings: the left-wing (front)-1st floor houses administrative offices, the library, teachers' lounge, and general classrooms; 2nd floor houses classrooms and labs for biology, chemistry, and physics; the right-wing (only one story) houses art, music, and shop classes. Between the two wings is an area referred to the "GAC," housing the
Gymnasium,
Auditorium, and
Cafeteria. In 1963, Fulton Field was opened to accommodate football games. In 1965, using funds from interest earned from previous bond issues and funds from the National Education Act of 1963, the high school opened a vocational building on-site to house cosmetology, drafting, electronics, auto mechanics, and Occupational Work Experience programs. In addition, a
planetarium was constructed using donated monies from Mrs. Phillip Rising Peters in memory of her husband and son. In addition to the building, Mrs. Peters also donated the instruments and equipment used in the planetarium. Peters Planetarium is one of the few located on the grounds of a high school. In 2003, as part of Ohio's bicentennial, the high school was made a historical landmark in commemoration of
Robert G. Heft's designing of the current 50-star flag. The students of Lancaster High School have a bike path that connects to the
Ohio University Lancaster Campus. ==Clubs and activities==