William Timmermans

William Timmermans

Real Estate and Regulatory

Dutch, French, English and Spanish

Admitted to the Brussels Bar: 1996

William’s regulatory work consists of providing advice on all regulatory issues and assisting clients in litigation before the Belgian lower courts and the Council of State, the country’s highest administrative court.

William focuses on public procurement matters, and he provides advice and litigates in tender proceedings.

Furthermore, William has developed strong expertise in the energy and pharmaceutical sectors and often advises companies on the Belgian legal and regulatory framework.

William regularly publishes on public procurement law.

He was also involved in the drafting of the chapter on “Goods” in the new Belgian Civil Code.

William is a member of the Lawyers Association for Public law and the professional association of the Real Estate sector.


William Timmermans is described as "really good and reactive," and is praised for "giving pertinent advice and anticipating our needs". - Chambers Europe, 2020

Clients appreciate his"fast and accurate responses and constructive thinking" in addition to his "pragmatic approach" and litigation expertise. - Chambers Europe, 2019

"Practical and operational approach," coupled with his "strong expertise in contractual and litigation matters." - Chambers Europe, 2018

William Timmermans is recommended in Chambers & Partners in 2019 and 2020.


William Timmermans



  • LL.M. (Harvard Law School)
  • Erasmus Exchange Programme (Universidad de Salamanca)
  • Lic. Juris (Katholieke Universiteit Leuven)

Selection of publications

"European Public Procurement Law: The Public Sector Procurement Directive 2014/24/EU Explained through 30 Years of Case Law by the Court of Justice of the European Union.", Wolters Kluwer Law & Business, 2015 (with C. De Koninck and T. Ronse), second edition

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