Kendal's Castle Dairy will be re-opened this month.
Kendal College said it is re-opening "as an historic resource, open for the community to access and appreciate".
The building, on Wildman Street, is the oldest, continuously occupied, medieval building in Kendal, built in the early part of the 14th century.
Kendal College are launching a programme of quarterly activities for adults at the venue, giving people the opportunity to develop and learn new skills and take part in a variety of social activities.
Principal Kelvin Nash said: "The Castle Dairy is a truly unique building and the transition to an education and heritage centre has been months in the planning.
"By using the Castle Dairy for adult education and recreational programmes, it will be the next chapter in the buildings long history.
"With a new range of courses, community events and a focus on the building's heritage, we really are ensuring that we are keeping the building alive, and this is just the beginning of a really exciting future.”
The Castle Dairy closed last year as part of a strategic review by the college.