The Annex was added at a cost of $27,000 and it housed the Industrial Arts classes. In 1937, wings were added to the Old Main building to accommodate a growing population. The Vocational Education building was completed in 1948 at a cost of $987,000 and provided classroom space and instruction areas for the Trades. It served for many years as the Vocational Technical Center for all schools in the North County until a new Vocational Technical Center was constructed in 1976. The present Business Education building was opened as Glen Burnie Junior High School in 1948. In 1955, the present gymnasium was constructed at a cost of $519,000 plus equipment. In 1958, further increases in the school area population led to the construction of a new junior high school in Marley. The former junior high school building was turned over to Glen Burnie High School and was equipped for instruction in Business Education. Once the old junior high building became part of the high school, its gymnasium gave the school two full gymnasiums for the physical education classes and sporting events.