Diederik van der Kooij

Diederik van der Kooij

Advocaat | Counsel


+31 20 605 65 96
+31 6 2248 1563



Follow me

Diederik advises on and litigates complex disputes relating to contract and liability law, with a particular focus on the liability of banks, asset managers, accountants and other financial service providers. He is also a Supreme Court lawyer and represents clients in cassation proceedings relating to the full spectrum of civil law. Diederik is a member of the Dutch Association for Procedural Law, the Dutch Association of Liability and Compensation Law and the Dutch Association of Civil Cassation Lawyers. He also lectures on liability law and compensation law at the Law Firm School.

Qualifications & Experience

  • LL.M.  Dutch Law (Tilburg University)
  • LL.B. Dutch Law (Tilburg University)

  • Ballast Nedam wins court of appeal case against Max Bögl. Houthoff advised Ballast Nedam on an appeal case against Max Bögl, a former joint venture partner. The Supreme Court has rejected an appeal in cassation, lodged by Max Bögl. For Ballast Nedam this ruling means an elimination of a risk of over 9 million euros, without further financial impact.

    In 2013, the appeal court found in favour of Ballast Nedam and ordered Max Bögl to pay an amount of over 9 million euros to Ballast Nedam. This amount has been paid at the time and has been included in the Ballast Nedam financial statements.

    Ballast Nedam brought action in 2003 against its then joint venture partner Max Bögl for breach of contract in the tendering stage of three underground stations on the North-South Line.
  • Houthoff is representing a Dutch pension fund in a more than € 1 billion claim against their former asset manager for inadequate covering of the interest risk of the pension fund.