Ciel d’argent

— Montrouge (92) — 2026
Artist: Laurent Grasso
Architect: David Trottin
Client: Société des Grands Projets
Location: Châtillon–Montrouge Station – Line 15

Rendering of the atrium’s triangulated slat ceiling

2,418 anodized aluminium slats (i.e., 4 km)
9,760 print files
8,730 fishplates assembled
800 m²

Artistic commission produced as part of the Grand Paris Express artistic and cultural programme