A site in step with the times

Production began to decline in the 1950s, and finally stopped in 1977. Though "Lentille Terres-Rouges" was the first steel-manufacturing site in Esch, it also became its first industrial wasteland. After it closed down, the high-potential land was considered for various rehabilitation projects, but they all came to nothing because the site was so polluted. In September 2018, IKO Real Estate submitted its project for converting the site into a new sustainable, innovative, model district: an ambitious programme carried out in collaboration with the local authorities and all the Luxembourg administrative departments, as well as on the basis if the participatory process that was introduced.


Discover the history and future of the Rout Lëns district in this five-minute documentary.


The Blast Engine Room

A blast engine is a machine in a blast furnace that provides the combustion air required to operate it. The highly characteristic architecture of the blast engine room, built in the 20th century, makes it a powerful symbol of the site. A railway network linked "Lentille Terres-Rouges" with the factories at Esch-Belval and Esch-Schifflange.

The "Magasin TT"

Built in the 20th century, the store provided all kinds of supplies for operating the site and for employees. There was also a brewery. Its three-floor volumetry and facades with pilasters have unquestionable value in terms of architecture, heritage and history.

The Turbine House

At industrial sites on this scale, turbines generated the power needed for manufacturing steel. Built in 1901, the turbine house was the site's figurehead. Its structure and facades are of immense architectural interest.

The Portico

In the past, it was surmounted by a long "perched hall" which will be restored in the project.

The signal box

The trains serving the site were directed from the signal box set up in the 20th century. Its remarkable form earned it nicknames like the "U-boot" (submarine) and the "mushroom".