After being violently destroyed, probably around the end of the 3rd century AD, the villa underwent much work, particularly in the garden. A private spa was built to replace those of the villa, which could no doubt no longer be used and also, perhaps, to take advantage of the water available there. This bathing unit, heated by hypocaust (hot air running below the floor and through the walls), contained a caldarium (hot room), a tepidarium (warm room), a frigidarium (cold room) and a bath. Its poor state of repair means that it is not possible to open the spa to the public. The aerial photo provides a good view of it.
On the same photo, one can see that the building took advantage of the western wall of the garden with its buttresses and semi-circular exedras, designed to resist the force of the earth behind the talus. The large restored exedras, next to it opened onto the garden in such a way as to set off a decorative feature (probably a statue) which must have constituted an attractive aspect of the monumental appearance of the site.
As an aside, it is interesting to note that, at a later date (around the 5 Th century AD ?) a very elderly woman was buried in the ruins of the hypocaust.