Montparnasse Tower Closure Disrupts Daily Life for Thousands of Residents

The Tour Montparnasse will close to visitors on March 31, 2026, ahead of its transformation into a glass structure that includes hotels, retail and an urban farm greenhouse. Construction on the wider Montparnasse renovation project, budgeted at over €600 million, is due to begin in 2028 once a permit submitted in early 2026 receives approval.

Changes to Daily Access

Residents who use the tower for views or events will lose that option from the end of March 2026. The adjacent Maine-Montparnasse shopping center forms part of the same redevelopment zone, so foot traffic patterns around the site are expected to shift during construction phases. The 52-meter CIT Tower will also see work begin in late 2026 for roughly two years, adding to activity on the shared site.

Why the Timeline Matters Locally

The sequence of closures and starts means residents face successive periods of disruption rather than a single concentrated phase. Early 2026 permit submission and the March 2026 tower closure set the first visible change, followed by CIT Tower works and then the main project in 2028. This staggered approach determines when streets near the towers see increased vehicle movements and when public spaces may be cordoned.

Evidence from Project Documents

Project details released through official channels list the €300-650 million range for the Tour Montparnasse works and confirm the two-year duration for the CIT Tower element. These figures come directly from planning materials that also note the €600 million-plus cost for the overall renovation. The dates and cost bands provide the only concrete markers available for residents planning around the site.

People living or working near the towers can track updates through the city planning portal and the listed project pages at the mairie14.paris.fr site and the URW announcement on Les Ateliers Gaîté. Checking these sources regularly will show when pedestrian routes or retail access points are altered during each stage of the works.