The buildings where the Ostroh Academy is located today have a fascinating history. When in 1576 Prince V.-K. Ostroh founded the academy he ordered to place it near the castle. Most likely the buildings of the XVI century were wooden (as all buildings of the city). After closing, the buildings of the academy have not survived.

The history of the premises of the modern academy began in the XVIII century. The oldest part of the buildings (the temple and the old monastery building) was originally a monastery of the Catholic Order of Friars Minor Capuchins. With the change of authorities and the transition of Ostroh to various state formations, the premises were completed, and their purpose changed. The buildings that are now the university corps appeared at different times.

Today, not only university auditoriums and departments are located in the oldest premises, but also the main part of the museum’s expositions.