Additional acreage was donated to the School in recent years. Mrs. Rust sold the School to the non-profit Fauquier Educational Foundation in 1958. The School had already changed its name to Highland and was now run by an independent Board of Trustees. The name was changed to Highland School, Inc. in 1989. The Board of Trustees is now comprised of 16 members who are current parents, alumni and friends of the community.
Board members play an integral role in the decision-making process at Highland.
In 1964, an addition to the original building was completed. The Chilton Building, which currently houses Pre-K and Kindergarten, was built in 1968. In 1979, Middle School classrooms and an expanded library were added. Major renovations took place in 1995. A major addition is now being built onto the Upper School.