A new Senior Campus was completed mid 1998. This campus is for Year 11 and 12 students and has special facilities for these students.

A partial redevelopment occurred in 1974 and the school has completed the final stages of a major upgrade project that was initially approved by Government in 1993 and began in 1997.

Glossop High School opened in 1941 and over the ensuing 67 years has become a valued part of its local community.