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Construction
Construction
Historical player in Construction
As a construction player since 1881, we are committed every day to advancing the builder's profession. This is a vital mission to provide the city and its residents with high-quality, responsible, and sustainable structures.
Discover the Construction activity of Léon Grosse
The Construction entities
Léon Grosse Construction
A national network of 20 construction agencies.
LG Lux
Your Construction Partner in Luxembourg
Besnard
Your Construction Partner in the Western Paris Region
Defillon
Your Construction Partner in the Eastern Paris Region
LGEM
Our Electrical Expertise Ensures the Reliability of Your Projects
Mauro
Construction of Luxury Villas from the Alpes-Maritimes to the Saint-Tropez Gulf
Villeneuve
Your Construction Partner in the Southeast.
Soulier (Site under construction)
Your construction partner in Auvergne
SNEP (Site under construction)
Your construction partner in Bourgogne
BETEG (Site under construction)
Your Engineering Office in the Rhône-Alpes Region
Léon Grosse Travaux Services (Site under construction)
Routine maintenance and the evolution of your assets
Energy Transition
Energy Transition
Accelerate the Transitions
Whether it’s for renovating occupied spaces or energy-efficient renovations, we can implement our integrated solutions with ultra-high-performance systems and renewable energy production.
Discover Energy Transition activity
Energy Transition entities
Iris
Energy renovation of housing
Horizen
Energy renovation of tertiary buildings
Granuloé
Produce Wood Pellets through Short Supply Chains
Voé
Move Away from Fossil Fuels with Biomass
Guiban (Site under construction)
Water treatment & aquatic centers
Façades - Weclad
Façades - Weclad
Let's Dress Buildings in Lasting Brilliance
Weclad brings together four facade experts to meet the highest architectural, technical, and environmental standards. Our integrated design teams and European coverage enable us to offer unique solutions in Europe in terms of proximity, quality, and agility. We provide tailored responses for your facade project, whether new or renovation.
Discover Weclad
Façades entities
Rinaldi
The Leading French Facade Specialist Developing Custom Prefabricated Solutions
De Groot en Visser
The Leading Facade Specialist in the Netherlands for Facade Renovation and Low-Carbon Facades
Techniwood
Facade specialist in the design and off-site manufacturing of wooden facades.
Heritage
Heritage
Every action leaves its mark
Through our four entities, we have extensive expertise and real know-how in the restoration of historic buildings
Discover Léon Grosse Heritage
Our heritage entities
Chapelle
Maintenance and renovation of heritage buildings and Historic Monuments
HMR
Restoration of Historic Monuments and stone buildings – Creation of cellars for wineries
Tisserand (Site under construction)
Joinery - Work on renovation and layout projects.
Majestan (Site under construction)
Renovation of exceptional Parisian heritage, Haussmann-style.
Real Estate
Real Estate
Taking Care of the City
Our commitments drive us to place the needs and well-being of residents at the heart of our mission and to prioritize urban regeneration. We implement concrete solutions by making energy efficiency our priority.
Discover Léon Grosse Real Estate

Leon Grosse Group

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