Eric Wright Construction has finished work on a £2.8m extension to Bury College.
The 44-week project included the design and build of a four-storey addition to the existing enterprise centre on Market Street.
The facilities will provide 14 purpose-built classrooms, two social learning space seminar rooms, two meeting rooms and five offices, and conference and lecture facilities.
The building was designed by Seven Architecture.
The project followed Eric Wright's completion of earlier phases at the college, which comprised a £4.6m five-storey teaching facility and £2.1m construction skills centre.
John Wilson, managing director of Eric Wright Construction, said: "With much of the work taking place during term time, site segregation and logistics management were imperative to ensure the existing campus remained operational.
"Bury College has an excellent reputation and these facilities will help boost its current offering and maximise learning opportunities for years to come."