Prof Thomas Thierau



Born in Hagen/​Westphalia in 1955. Studied law in Bonn. 1982 first State examination, 1986 second State examination. Research assistant at the University of Bonn. Lawyer in Cologne 1986 to 1991. Lawyer in Leipzig from 1990 to 1991.

Joined the firm in 1991.


Private construction and property law, law governing architects, engineers and project management, complementary areas of property law (acquisition, use and enjoyment and sale of property), litigation, arbitrator in construction and arbitration proceedings, property development, national and international construction contracts, construction‐related mediation.

Focus of practice: advising on “crisis construction sites” to avoid legal disputes; construction‑​related advice starting with conception and drafting of contracts, ongoing support of client and contractor in major projects with the aim of reaching a mutually acceptable final agreement.

Repeatedly listed as “leading senior partner in private construction law” by JUVE. Listed as “top lawyer in private construction law” (2013, 2014, 2015) by Wirtschaftswoche. Listed by Handelsblatt/​Best Lawyers in their 2013, 2014, 2015, and 2020 rankings of Germany's best lawyers–Construction and listed in construction law since 2013. Featured by Legal 500 as “leading name” in construction and real estate law and recommended in construction and real estate law/​construction law–including dispute resolution. Recommended in Germany Construction by Who’s who Legal and by Chambers Europe since 2018 in real estate and construction law – Germany.

Awarded as “Law Firm of the Year 2022 in Construction Law” by Handelsblatt/​Best Lawyers.

Founding member of ARGE Building Law in the German Bar Association. Member of numerous committees on building law.

Honorary professor at the University of Applied Sciences in Münster. Lecturer at the Law Faculty of the University of Marburg.

Providing comprehensive legal advice (legal project management) on the project development of „SQUAIRE“ at Frankfurt airport. Providing legal support to the general contractor in connection with the construction of university clinics. Legal project management for the construction of offices, hotels, and complex infrastructure projects. Providing legal advice and acting as counsel in proceedings concerning the collapse of the City of Cologne's Historical Archive in 2009.


Publications: various articles on private construction law as well as on property law, anti‐trust and company law in former East Germany, frequent lecturer in building and property law.


Prof Thomas Thierau

Prof Thomas Thierau
specialist attorney for construction and architectural law

T +49 228 72625‐118
F +49 228 72625‐99

Gabriele Küster