Structural engineering consultancy · France
Structural engineering for architecture and engineering firms.
France-based consultancy providing subcontracted structural design and engineering — for renovation, rehabilitation and new-build projects.
About us
Your structural engineering partner
3L Structure is a France-based structural engineering consultancy specialising in subcontracted engineering and design services for architectural and engineering firms.
We bring our expertise to complex construction projects, with a particular focus on structural renovation, rehabilitation and new-build developments.
Our mission is to deliver reliable, innovative and cost-effective structural solutions, tailored to the technical challenges of each project.
50+
Completed projects
10+
Ongoing projects
Expertise
What we do
Structural renovation & rehabilitation
Assessment of existing structures, damage diagnosis, and strengthening or rehabilitation solutions adapted to site constraints.
New-build developments
Structural design and calculations for reinforced concrete, steel and timber buildings, from concept to construction documents.
Engineering subcontracting
An extension of your team: calculations, drawings and technical reports delivered to your standards and deadlines, in close coordination with your architects and engineers.
Featured projects
Bordeaux - FRANCE · 2024 – Ongoing
CANOPIA
Large-scale urban renewal project
Paris 11 - France · 2026 – Ongoing
81 Boulevard Voltaire (Hotel / Hospitality)
A major technical challenge in a highly constrained urban and heritage context.
Champs-Sur-Marne (77) · 2023-2026
Mixed-use Coliving Development (Retail – Offices – Residential)
Execution design for the major renovation of a reinforced-concrete building.
Contact
Need structural support on a project?
Tell us about your project — we'll reply with a scope of work and a quote.
Contact us