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

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.

04.09.2026
•Urban Planning and Environmental Law, Andersen in Belgium
The Brussels-Capital Region aims to process urban planning permits and certificates more quickly going forward. A new circular sets ambitious deadlines for Urban, the regional administration for urban planning and heritage. However, these are internal targets, not new legal deadlines. If they are not met, this will not, in itself, affect your permit or certificate application.