The project included the construction of a new building linked to the existing building by a walkway, improvement and restoration works on the prison services building, construction of a new entrance, and upgrading of the outdoor areas. The building is situated on a plot oriented north east/south-west, standing at a maximum of 11 floors above ground level, linked by independent communication routes. Two large central patios separate the buildings and unite the built complex. All of the new buildings in the complex were designed to allow flexibility and modularity, anticipating potential spatial reorganisation in the event of changes to the organisational structure.
«The idea was to evoke a greater proximity than that which is traditionally adopted in a public building of this kind, with a complex built on a humanised scale which is rigorous yet not austere, dominant yet not domineering, for the building to reflect its institutional nature without being oppressive.»