LEICHT Structural engineering and specialist consulting GmbH is a Rosenheim-based engineering office that — in its own words — “designs, calculates, and constructs load-bearing structures and building envelopes” (entwirft, berechnet und konstruiert Tragwerke und Gebäudehüllen). The firm is led by Managing Directors Dipl.-Ing. Marcel Enzweiler (Beratender Ingenieur), Dr.-Ing. Lutz Schöne (Beratender Ingenieur), and Dipl.-Ing. Florian Weininger, and operates with the rigor expected of a German Beratende-Ingenieure practice — combining classical statics with computational and parametric workflows across timber, steel, concrete, and glass.
The company name signals two intertwined design instincts: leicht in the literal sense — lightness, efficient material use, optimised structures — and the family-name continuity of a long-running consulting practice. The portfolio reflects this range, spanning international landmarks like Canary Wharf (London), Brookfield Place (Calgary), and Hamburg HafenCity, alongside regional work such as the Meranti-Halle in Münster and the Capitol Rosenheim, plus a steady thread of ecclesiastical projects (St. Quirin, Kloster Beuerberg). The firm carries worldwide professional indemnity coverage (including USA and Canada) through Gothaer Allgemeine — consistent with an active cross-border project profile. A sister company, LeichtPhysics, extends the offering into building physics and energy efficiency.
Services
- Structural Engineering (Tragwerksplanung) — primary and secondary structures for new build and refurbishment
- Façade & Envelope Engineering (Fassadenplanung) — building-envelope design and detailing
- Lightweight Structures — efficient material use and optimised geometries
- Glass Structures — structural glass engineering
- Timber, Steel & Concrete Construction — full-material structural design
- Building Physics & Energy Efficiency — via sister company LeichtPhysics
- Office-to-Housing Conversion — co-author of the BDA Bayern “O2H” manual on structural, constructive, and energetic retrofitting of vacant office stock
- International Project Delivery — worldwide professional liability coverage indicates regular cross-border work
Contact info
- Address: Königstraße 9, 83022 Rosenheim, Germany
- Phone: +49 8031 35272 0
- Fax: +49 8031 35272 10
- Email: office@LEICHTonline.com
- Website: leichtonline.com
- Managing Directors: Dipl.-Ing. Marcel Enzweiler (Beratender Ingenieur), Dr.-Ing. Lutz Schöne (Beratender Ingenieur), Dipl.-Ing. Florian Weininger
- Registration: Amtsgericht Traunstein, HRB 17525 · VAT No. DE253043174
- Professional Indemnity: Gothaer Allgemeine Versicherung AG, Gothaer Allee 1, 50969 Köln (worldwide coverage incl. USA and Canada)