It is the architect Hippolyte Lebas, creator of the Notre-Dame-de-Lorette church, who is chosen to carry out this project.
The architect François-Christian Gau was then appointed to draw up the plans for the new prison, and submitted his project.
It is simple: an enclosure wall surrounding a square building, itself pierced by a central courtyard.
The contrast will be all the more flagrant as the new remand center will be built on land facing the previous penitentiary centre.
It is there, in fact, that future convicts will wait before their departure for the Ile de Ré, then for Cayenne or Nouméa.