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CSN Head Office Expansion

EBC obtained the mandate to realize the expansion of CSN’s head office (confederation of national labor unions). The rectangular building will comprise 4 above-ground floors and 5 floors for underground parking. The project is combined with the addition of a new electrical entry of 1,600 amperes and the replanning of existing premises. Construction and replanning will be connected to the new electric room. A reorganization of electromechanic systems is planned for the smooth running of both buildings. The approximate surface of each floor is about 30,000 pi². Remarkable fact for this new building: a central roof-light opened on the 4 floors. The Silver LEED® certification has been obtained for this expansion.


  • Activity Sector Commercial
  • Client CSN
  • Year 2014-2017
  • Value $39,400,000
  • Engineers Roche Ingénieurs-conseils / Ingémel
  • Architect BGLA Architecture