The construction of the San Giovanni (St. John) complex dates back to the period between the 15th and 16th centuries.
The original structure was most likely built in the medieval period to accommodate a religious community, particularly the Sisters of St. Clare. The adjacent church, dedicated to St. John the Baptist, became an important landmark for the inhabitants of the area. Over the centuries, the building was expanded and enriched, reflecting different stages of architectural and stylistic development.
With the passage of time, the complex underwent several transformations. During the modern period, it was repurposed for civic use, becoming the seat of the ECA (Municipal Assistance Authority). This is where the alternative name "the Ex-ECA" comes from.
Today, after years of neglect and a thorough restoration, the complex has been returned to the community as a multifunctional cultural space. It now houses the Museum of Contemporary Mediterranean Ceramics (MCCM), which preserves and promotes the ceramic tradition of Southern Italy, and organizes exhibitions and cultural events in its numerous meeting rooms.