Highland School, listed on the National Register of Historic Places

Highland School is a school building in Boulder, Colorado, constructed from red brick and sandstone with Gothic and Romanesque Revival features. The three-story structure built in 1892 was designed by architects Varian and Sterner, and a matching addition doubled its size in 1923.

Highland School was designed in 1890 by the Denver firm Varian and Sterner and built in 1892 as Boulder's fourth school. It served as a school until 1971, when demolition threatened it; civic leaders opposing that and the demolition of nearby Central School formed Historic Boulder, Inc. A compatible 1923 extension doubled the building, and it joined the National Register of Historic Places in 1978.

The building is also remembered as Highland-Lawn School, a name pairing its hilltop site with the lawn around it. It served as a school until 1971, and when demolition was proposed that year, civic leaders formed Historic Boulder, Inc. to save it and the nearby Central School. The group's campaign led to the building's conversion to offices and its 1978 listing on the National Register of Historic Places.

Highland School stands at the corner of 9th Street and Arapahoe Avenue in Boulder. The 1892 building now serves as an office building, so the red brick and blond sandstone exterior is best viewed from the public street and sidewalk.

The 1923 addition was designed to be entirely compatible with the original 1890 design by the Denver firm Varian and Sterner, so the doubled building reads as one structure. The school was threatened with demolition in 1971, the year it closed; opponents of the demolition then formed Historic Boulder, Inc. to advocate for its preservation, and the building was listed on the National Register in 1978.