Baths of Titus

When Titus opened his new baths in AD 80, the ceremony was inseparable from another, more spectacular event: the dedication of the Colosseum. Suetonius records that the two inaugurations were celebrated together with lavish public games (Tit. 7). The pairing was not coincidental. Both monuments occupied land that Nero had seized for his Domus Aurea, the sprawling private palace complex that had swallowed entire neighborhoods of central Rome after the fire of AD 64. The Flavian emperors made the restoration of that land to public use a cornerstone of their political program, and the Thermae Titi were among the earliest and most legible expressions of it.

The baths were built on the southern slopes of the Mons Oppius, northeast of the Colosseum. Their construction appears to have been rapid — “in great haste” is how Suetonius puts it — and scholars have long debated whether Titus’ builders simply adapted existing bath facilities from the Domus Aurea rather than constructing the complex from scratch. What can be said is that no actual buildings of Nero’s palace were removed to make way for the new thermae; they occupied a new footprint on the hillside, taking the same orientation as the Domus Aurea and covering a roughly rectangular area of approximately 105 by 120 meters.

In plan, the Thermae Titi followed a layout that would become standard for Roman imperial bathing complexes: a central hall on the north side, flanked by colonnaded courts, with the caldarium projecting from the south to catch direct sunlight. One significant absence distinguishes it from its successors: there was no open-air natatio, the swimming pool that became a fixed element of the later imperial type. They were nonetheless architecturally consequential, representing one of the earliest examples of what would crystallize into the canonical design of Roman imperial thermae.

The complex received some restoration in the third century, but thereafter fell into decline. Martial mentions the baths in passing in two epigrams, placing them in the everyday fabric of the city, but the building appears to have been prematurely abandoned well before late antiquity. By the time it ceased to function, its marble revetments were already being stripped for reuse elsewhere — including, according to later accounts, the side chapels of the Church of the Gesù.

By the sixteenth century, much of the structure had collapsed, though substantial ruins were apparently still visible when Andrea Palladio visited the site. His architectural drawings — floor plans and reconstructed sections made from the ruins still visible in his day — are the single most important record we have of the building’s layout. Recent scholarship has noted, however, that Palladio’s reconstructions of Roman bath complexes were sometimes shaped by earlier drawings and his own interpretive preferences as much as by direct measurement, so his plans of the Thermae Titi should be read as informed architectural reconstructions rather than unmediated records. The ruins were subsequently almost entirely demolished, and until the 1890s the name was commonly misapplied to the nearby baths of Trajan, a confusion finally corrected by topographers working from the ancient sources.

FURTHER READING

1. DeLaine, Janet. “The Imperial Thermae.” A Companion to the City of Rome, edited by Claire Holleran and Amanda Claridge, Wiley-Blackwell, 2018, pp. 325–342. https://doi.org/10.1002/9781118300664.ch15
2. Fagan, Garrett G. “The Genesis of the Roman Public Bath: Recent Approaches and Future Directions.” American Journal of Archaeology, vol. 105, no. 3, 2001, pp. 403–26. JSTOR, https://doi.org/10.2307/507363. Accessed 20 July 2026.
3. DeLaine, Janet. The Baths of Caracalla: A Study in the Design, Construction, and Economics of Large-Scale Building Projects in Imperial Rome. Journal of Roman Archaeology Supplementary Series 25. Portsmouth, RI: Journal of Roman Archaeology, 1997.
4. Hemsoll, David. “Drawing On The Past: Palladio, His Precursors And Knowledge Of Ancient Architecture c. 1550.” Journal of the Warburg and Courtauld Institutes, vol. 82, 2019, pp. 195–249. JSTOR, https://www.jstor.org/stable/27074376. Accessed 20 July 2026.