Hauts-de-Seine Departemental Administrative Center

Architecture as a tool for public efficiency

The new Hauts-de-Seine Departmental Administrative Center consolidates all State services within a single building. PCA-STREAM leads a major transformation that combines functional reorganization with the rehabilitation of an existing modernist structure. The project rationalizes circulation flows, clarifies access hierarchies, and groups entities by function to enhance legibility and efficiency. Office floors are redesigned as bright, flexible, and cross-ventilated workspaces aligned with contemporary working practices. Respecting the architectural language of the original building, the intervention upgrades thermal comfort and energy performance while introducing carefully calibrated daylight. The result is a coherent, efficient, and enduring civic infrastructure : a renewed framework for public service at the heart of Nanterre.

Hauts-de-Seine Departemental Administrative Center

Architecture as a tool for public efficiency

The new Hauts-de-Seine Departmental Administrative Center consolidates all State services within a single building. PCA-STREAM leads a major transformation that combines functional reorganization with the rehabilitation of an existing modernist structure. The project rationalizes circulation flows, clarifies access hierarchies, and groups entities by function to enhance legibility and efficiency. Office floors are redesigned as bright, flexible, and cross-ventilated workspaces aligned with contemporary working practices. Respecting the architectural language of the original building, the intervention upgrades thermal comfort and energy performance while introducing carefully calibrated daylight. The result is a coherent, efficient, and enduring civic infrastructure : a renewed framework for public service at the heart of Nanterre.

  • Client

    Prefecture of Hauts-de-Seine

  • Program

    Rehabilitation and functional reconfiguration of the Hauts-de-Seine Departmental Administrative Center

  • Location

    Nanterre (92)

  • Surface

    Approx. 45,000 m²

  • Status

    Work in progress