This Lot Includes The Replacement And Renovation Of Ventilation Systems In The Conservatoire Concert Hall As Well As The Modernization Of Sanitary Facilities Located At The Rear Of The Building. The Concert Hall Ventilation System, Including Smoke Extraction Fans, Must Be Renovated, As Are The Ventilation Grids In The Gallery. In Addition, The Sanitary Facilities In The Back Rooms Must Be Renovated With The Corresponding Equipment And Installations. Start Of Work: Summer 2026 (Health Works). Duration Of The Work: 22 Weeks (Divided Into Several Phases) Excluding Interruption Period