The Cluny baths
A monument on the Parisian landscapeDimensionsDating
Architecture and ornamentationThe Collège de France baths

Units and dimensions

Reconstruction of the Cluny baths superimposed on a present-day map of the area.
3D graphic: M.-O. Agnes & A.-B. Pimpaud.
Photo: IGN Photothèque Nationale - 1999

  In Roman times, the baths occupied a trapezoidally-shaped insula. The south side, which was the short face of the trapezoid, was exactly 300 feet long. North to south, it measured 375 feet (or 400 including the part of the building that extended into the decumanus to the north). The baths covered an area of slightly more than one hectare.

Within this insula, two large areas can be identified:
- to the south, a large courtyard bounded by a wing that probably contained shopes ;
- to the north, the bath complex itself, which roughly corresponds to the portion that exists today.

We can see that the bathing section-whose general structure is arranged symmetrically on either side of a north-south axis-is also the product of a modular arrangement that has been partially deciphered.

Hypothetical reconstruction of the layout of the baths based on the basic urban planning unit of 300 Roman feet.
Source: D. Busson & V. Charlanne.