D’Haus Completed in Esch, Luxembourg’s Largest Residential Timer Building

On Tuesday 9 June 2026, LEKO Labs, the Luxembourg-based company specialising in low-carbon construction systems, announced the delivery of D’Haus, the largest residential project built using an industrialised timber structure in Luxembourg to date based on its technology.

With nearly 11,000 m2 and 95 residential units, the project, located in the Rout Lëns eco-district in Esch-sur-Alzette, marks an important milestone in the development of industrialised timber construction applied to high-rise buildings, according to the company. It demonstrates the ability of a world-first industrialised production system to address today’s housing challenges by combining environmental performance, controlled delivery timelines and quality execution. The topping-out ceremony, held on 28 May 2026, officially marked the completion of the structural works.

D’Haus also represents a major milestone in LEKO Labs’ development trajectory. The project confirms the company’s ability to design, manufacture and deliver large-scale residential developments through an industrial model developed in Luxembourg.

The building was designed and constructed using the technology developed by LEKO Labs, which combines algorithmic design, robotic production and off-site manufacturing. The structural elements were manufactured at LEKO Labs’ factory in Foetz before being assembled on site. This production model enables the standardisation of components, the optimisation of material use, and the reduction of on-site operations, while ensuring a high level of control over project timelines, execution quality and the reduction of unforeseen construction-site issues.

“Through this project, we demonstrate that the industrialization of timber construction is not at odds with architectural ambition. On the contrary, it enabled us to design bespoke homes without compromising the quality of the spaces, their diversity or their identity. The project highlights the acoustic, tactile, and atmospheric qualities of timber, whose intrinsic characteristics help create a living environment that is comfortable, calming and deeply human,” said Tatiana Fabeck, Founder of Fabeck Architectes and architect of D’Haus.

By relying on local production and advanced industrial processes, LEKO Labs is helping to develop new production capabilities in Luxembourg to address the challenges of housing delivery and the environmental transition.

François Cordier, Founder and CEO of LEKO Labs, said: “With D’Haus, we demonstrate that an industrialized timber construction system can be deployed on large-scale developments and produced in a repeatable manner. This project represents the culmination of several years of research, development, and industrialization. It confirms the maturity of our technology as well as our ability to address the challenges of housing production, sector productivity, and the low-carbon transition of the construction industry in Europe.”

“The carbon trajectory of a building should not be measured solely by the emissions it avoids, but also by the carbon it is able to sequester over the long term. The LEKO system therefore acts as a carbon sink. Combined with its high potential for reuse, this significantly reduces the building’s emissions footprint over its lifecycle,” added Julien L’Hoest, Director of Energie et Environnement SA.

D’Haus is part of the development of the Rout Lëns eco-district, certified “Carbon Footprint Neutral”, which will ultimately include more than 1,400 homes within an urban model focused on energy efficiency. The project is being developed by IKO Real Estate, delivered through a Bouwteam approach with CLE (Compagnie Luxembourgeoise d’Entreprises), and designed by Fabeck Architectes. It comprises 95 residential units distributed across a seven-storey structure above ground (G+7).

Since its creation in 2017, LEKO Labs has contributed to the delivery of approximately 500 homes across Europe. The company is now preparing the opening of a new 10,000 sqm production facility in Luxembourg, scheduled for the first quarter of 2027. This increase in capacity is intended to support accelerating demand for industrialized low-carbon construction solutions and to strengthen Luxembourg’s contribution to the transformation of the construction sector in Europe.

At a time marked by housing shortages, decarbonisation targets, and the need to strengthen European industrial capacity, D’Haus provides tangible proof that the industrialization of construction is an essential lever for building more, faster and more sustainably.

About LEKO Labs

Founded in 2017 and based at the Technoport in Foetz, LEKO Labs develops a world-first industrialised insulated timber superstructure system designed for all building typologies, from single-family homes to high-rise buildings. Its patented technology, certified up to G+11, combines algorithmic design, robotic production, and off-site manufacturing to optimize resource use, reduce construction timelines, and improve the environmental performance of buildings.

Produced in Luxembourg, the solution integrates circularity principles from the design stage and relies on the use of bio-based materials as part of a broader effort to decarbonise the construction sector.