Gare Montparnasse was last renovated in the early 1990s for the inauguration of the LGV Atlantique, the high-speed railway running from Paris to Western France. Expansion of the line northwards to Brittany and southwards to Bordeaux (and eventually to the Spanish coast) will increase ridership by an estimated 50% by 2030, warranting this major renovation and expansion of the aging structure. Circulation will be reconfigured  to ease congestion and to enhance access from the metro platforms, and a brand new retail environment designed by Agence Jouin Manku will reinvigorate the commercial areas.  

L’O scope consists of all public circulation including entrances and lobbies, ticket offices, kiosks and guidelines for tenant storefronts.