
Senior Counsel
Administrative Law and Public Procurement / Urban Planning and Environmental Law / Litigation and Arbitration
Yves Sacreas practices in the field of public law.
He advises and represents clients before various courts, the Council of State, the Council for Permit Disputes and the Constitutional Court on constitutional and administrative law, urban planning, environmental law, expropriation law and also criminal law.
Yves was a teaching assistant in constitutional law at KULeuven for six years and is also the author of numerous scientific contributions. He worked for 16 years at a Brussels law firm and joined Andersen in Belgium in 2022.
Publications:
Magazines and book contributions
Short annotations:
Book reviews:
Contributions to scientific support expenditure:
Research reports commissioned by policy bodies:
Miscellaneous:
Expertises
Litigation and Arbitration
Urban Planning and Environmental Law
Administrative Law and Public Procurement
Qualification
Languages
Conferences and seminars

08.10.2026
•Urban Planning and Environmental Law, Andersen in Belgium
An environmental permit does not give you free reign once the works begin. A recent judgment of the Council for Permit Disputes concerning Ventilus has made this clear once again. In that judgment, the Council suspended the permit for the extension of the Gezelle high-voltage substation in Bruges in extreme urgency proceedings, because, prima facie, there had been insufficient investigation into which protected species might be put at risk by the works.

29.09.2026
•Urban Planning and Environmental Law, Andersen in Belgium
A developer who contributes financially to the drafting of a spatial implementation plan may thereby jeopardize their integrated environmental permit. This follows a ruling by the Council for Permit Disputes dated September 17, 2026. The ruling addresses a practice that is widespread throughout Flanders.

17.09.2026
•Urban Planning and Environmental Law, Andersen in Belgium
Non-governmental organisations dedicated to protecting human health will soon be able, like environmental protection organisations, to qualify as part of the “public concerned” in urban and/or environmental permitting procedures. This will broaden the range of organisations that may challenge a permitting decision, adding a new dimension to future permitting procedures.

08.09.2026
•Real Estate, Renting and Co-ownership, Andersen in Belgium
Are you renting out a home with serious quality defects? If so, you risk criminal prosecution. Starting today, penalties for renting substandard housing in Flanders will be significantly increased. A fine can reach up to 800,000 euros under aggravating circumstances. At the same time, judges will have greater discretion to tailor the penalty to the severity of the offense.