Mr Martijn Claassen KC > Duet advocaten B.V. > The Hague, Netherlands > Lawyer Profile

Mr Martijn Claassen KC

+31620942011 martijn.claassen@duetadvocaten.nl View profile View profile

Work Department

Construction and public procurement

Position

Martijn has over 20 years of experience in construction and procurement law in medium to large construction projects in the building and infrastructure sector. He gained this experience in various roles, both on the client and contractor side and in the role of consultant.

Besides extensive legal knowledge and experience, Martijn also has relevant technical knowledge and experience, both from his engineering studies (Bouwkunde, TU Delft) and from the projects he has provided contract law advice on ‘from the shack’.

Martijn has gained particular experience in supervising complex installation engineering projects, such as the transport engineering & dismantling contract of the North-South Line, the ICT and train security systems of the metro in Amsterdam, the tunnel engineering systems of the road tunnels in Amsterdam and the functional systems of the traffic centre in Amsterdam.

Career

Before Martijn became lawyer at Duet advocaten in 2024, he was construction and procurement law lawyer at Croon advocaten (2010-2023). Croon advocaten has ceased to exist as a result of a demerger. Duet advocaten is one of the two new law firms as a result of this demerger.

Martijn also worked at Van Hattum and Blankevoort – contract management (2009-2010), Province of South-Holland –  Contract Affairs and Procurement (2005-2009) and Witteveen+Bos Consulting Engineers – Legal Affairs (2000-2003).

Languages

Dutch and English

Memberships

Martijn is member of the  Dutch Association for Procurement Law
(Nederlandse Vereniging voor Aanbestedingsrecht) and the Association of Construction Lawyers (Vereniging voor Bouwrecht Advocaten).

Education

Martijn has a Dutch Law degree. Besides that Martijn has an Engineering degree in Architecture from TU Delft.