About us

We are Van der Feltz Advocaten

Van der Feltz is an independent, niche law firm based in The Hague. Since the founding in 2006, we have focused on providing excellent services to our clients with a personal approach. Our lawyers advise and litigate on private and public law matters, often operating at the interface of the two, including, e.g., construction law, procurement law, energy law, and the environmental and planning law in the broadest sense. Our focus is on:

-       Construction and Real Estate

-       Energy

-       Government

-       Industry

With the knowledge and experience of both the public and the private sector, our highly specialized lawyers are capable of getting to the heart of the matter quickly. They have a great understanding of the operation of local and central government as well as the relevant interests of the government bodies involved. We help our clients in an effective and efficient way with strategic, innovative, and practical solutions on the foundation of personal approach.  

The firm has an academic profile. Nearly all of the firm’s lawyers teach at universities and commercial institutes and publice articles in academic law journals on a frequent basis. Jacques Sluysmans, partner, has been a professor of expropriation law at Radboud University Nijmegen since 2013.

Our clients

  • Property developers

  • Contractors

  • Lessee/Lessor

  • Municipalities, Provinces, Central Government

  • Energy companies

  • Water companies

  • Chemical companies

  • Oil & Gas

  • Pharmaceutical companies

  • Food industry

  • Other (heavy) industries

Mission and Vision

Quickly to the heart of the matter

Our highly specialized lawyers quickly come to the heart of the matter and help clients in an effective and efficient way with strategic, innovative, and practical useable solutions on the basis of a personal approach.

Core values:

  • Driven

  • Involved; mutual trust, close contact, and excellent communication.

  • Pragmatic



Van der Feltz Advocaten is specialized in both public and private law and with great regulatory works at the intersection of both areas of law. Additionally, we are and independent, niche law firm and provide legal services of the highest quality to government bodies and companies active in the sectors:

  • Construction and Real Estate

  • Energy

  • Industry

We have the experience and know-how to our disposal to optimally advise clients. 

Doing business responsibly

Social responsibility goals

Occasionally we provide legal services to charitable organizations. In case of limited financial resources, our services are provided at a reduced, or incidentally pro bono, basis.


Human capital

Good employment practices are highly important to us. Therefore, we facilitate part-time work, supplementary and specialized training. Our lawyers are encouraged to publicize and to teach. This contributes to the quality of our legal practice.


Environmental sustainability

We have an active environmental policy that includes the following:

  • Compliance with the applicable environmental laws and regulations.

  • Our staff is given a “mobility budget” and our car park includes two electric car loading stations.

  • Environmentally conscious acquisition of goods and services;

    We consume only fair-trade coffee and tea. Our staff lunchroom serves mostly organic food.

  • Sustainable handling of waste flows;

    We use 100% wood-free, fully recycled print paper that has been produced without optical brightening agents (EU Ecolabel, FSC label, and Blue Angel label).

  • Reduction of energy use by encouraging behavioral change and through technical choices;

    We make use of an economical and environmentally air-cooled system, LED lighting and energy-saving fluorescent bulbs.