A little-known landmark to the general public, the Perret Tower in Grenoble is undergoing restoration to mark its centenary and the 150th anniversary of the birth of its creator, Auguste Perret. The reinforced concrete building is expected to open to the public in 2026. This presents a good opportunity to delve into the history and future of this vertical structure in the Isère region.

The work of Auguste Perret, an avant-garde architect

Passionate about new materials, Auguste Perret, in partnership with his brothers Gustave and Claude in the family firm Perret Frères, created lightweight structures and innovative forms. He particularly favored reinforced concrete, a material that was strong, easy to use, economical, and quick to construct. Besides the cathedral in the capital of the Alps, his other works include the Amiens tower block, the church in Le Raincy, and, most notably, the reconstruction of Le Havre's city center.

A key exhibit at the International Exhibition of Hydroelectric Power and tourism

In 1925, Grenoble hosted this event, which showcased, among other things, hydroelectric power. On a former military site, the famous reinforced concrete tower was erected, the tallest of its kind at the time, standing 90 meters high. Conceived as a belvedere, the monument offers visitors a view from its summit of the Belledonne mountain range, as well as the Vercors and Chartreuse massifs. Closed to the public in 1960, the Perret Tower included two elevators and a 550-step staircase providing access to a platform 60 meters above the ground.  

Concrete Lace

Key material of the 20th century^e In the 20th century, concrete was used here in a slender silhouette, supported by eight pillars clad in perforated panels that let in light and are decorated with shapes reminiscent of scales. It is a true source of local pride, as it was in the Grenoble region that Louis Vicat invented the famous concrete, also known as grey gold.

A new experience for visitors

With a planned opening in 2026, the building will see its original elevators renovated, including their historic cabins, along with modernized motors and the addition of safety features such as a translucent mesh structure. Several types of tours will be offered to visitors: a family tour, an exploration via the stairs, or, for the more adventurous, a sporting challenge.  

A path laid out at the foot of the tower

For those who prefer to stay on solid ground, a walk on the ground will offer further insight into the history of the famous tower. Visitors will discover "interpretive stations" and "artistic objects" made of fiber-reinforced concrete, designed by the Lyon-based firm Trafik, that evoke the evolution of the material and recall the building's aesthetic. A monumental playground, echoing the 1925 International Exposition, will also be featured.

PERRET TOWER
PAUL-MISTRAL PARK
BOULEVARD JEAN-PAIN, GRENOBLE

fondation-patrimoine.org/les-projets/tour-perret-de-grenoble/79576