The complex was constructed in the early 4th century AD, during the reign of Constantine I.

During that time, Trier was a major imperial hub, being a primary residence for Constantine's son Crispus.

The baths were built around hot water pools reaching 40°C.

[1] Underneath the complex was a network of underground passageways used by the staff which can still be seen today, along with the remains of the sewer system.

The palaestra measures 160 by 130 meters, while the main bath building is west of these exercise grounds.