Prof Thomas Thierau



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, construction‐related mediation.

Focus of activity: advising „crisis construction sites“ to avoid legal disputes; construction‑​accompanying 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, advising construction AGENCIES.

Consistently recognized by JUVE as “leading senior partner in private construction law”. Awarded by Wirtschaftswoche as “Top Lawyer in Private Construction Law” (since 2013) and “Top Lawyer in Construction Law”. Awarded by Handelsblatt/​Best Lawyers in the ranking “Germany's Best Lawyers – Construction” and listed in Construction and Real Estate Law since 2013, Lawyer of the year in Construction Law (in 2023). Awarded by Legal 500 as “Leading Name” in Real Estate and Construction Law and recommended in Real Estate and Construction Law/​Construction Law – including Dispute Resolution. Recommended by Who's who Legal in Germany Construction and by Chambers Europe since 2018 in Construction and Real Estate Law – Germany.

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

Founding member of ARGE Baurecht im Deutschen Anwaltverein. Member of the Association for the Promotion of Private Building Law at the University of Marburg. Member of numerous construction law committees, including the German Construction Law Conference.

Honorary professor at the University of Applied Sciences in Münster.

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 on private construction law, in particular in the standard commentaries on VOB Parts A to C as well as on property, antitrust and corporate law in the new German states, editor and author of commemorative publications on construction law, permanent lecturer on construction and real estate law, trainer of specialist lawyers for private construction and architectural law.


* member of the partnership partnership with limited professional liability

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