Tour Montparnasse renovation halted amid disagreements between owners
Plans to modernise ‘Paris’s ugliest building’ at a standstill after clashes over plans and pricing

TL;DR
- Renovation plans for the Tour Montparnasse have been halted due to disputes among its private co-owners.
- The estimated cost of the overhaul doubled to €800m (£688m).
- Co-owners voted against the project, jeopardizing a building permit set to expire at the end of November.
- Recent incidents saw glass falling from the building, prompting fire officer intervention.
- Architect Renzo Piano is separately overhauling the shopping center beneath the tower.