Tour de l'Isle

Tour de l'Isle is a stone tower in Grenoble with four stories and a height of about 23 meters. The structure measures about 12 meters long and 9.5 meters wide, featuring flat-mullioned windows that were added during a later transformation.

The tower was built in 1381 as a town hall and arsenal serving the city's administrative needs. From 1591 onward, it became part of the military fortifications under the Duke of Lesdiguières.

The tower once held the city's official documents and municipal records in its protected chambers. This role shows how important it was to safeguard the city's legal rights and administrative memory.

The tower is connected to the Museum of Grenoble by a modern walkway for easy access. Visitors should check opening hours before visiting, as the site may be closed on certain days.

The tower is the last remaining structure of Grenoble's medieval fortifications and represents a rare vestige of that era. Its survival preserves an important piece of the city's urban defense history.

Location: Grenoble

Inception: 1380s

Floors above the ground: 4

Height: 23 m

Length: 12 m

Width: 9.5 m

Part of: Museum of Grenoble

GPS coordinates: 45.19510,5.73139

Latest update: December 14, 2025 18:12