This is the first time after a while in which the cells blocks have been renovated since the facility was first built.
NCDC Metropolitan Superintendent Ben Turi during the tour this morning said until the holding cells are given the approval by the inspectors, the cells will be open for occupation by inmates.
The holding cells have had major maintenance and refurbishment since last year when it was condemned by the NCDC health inspections.
Environmental Health Senior Inspector Mathew Laba says since last year, the cell blocks have seen an immense improvement.