Matias Osorio Olivera
Counsel
Administrative Law and Public Procurement / Urban Planning and Environmental Law / Litigation and Arbitration
Your trusted partner with a focus on results. Driven by knowledge, creative in approach.
Matias graduated with distinction in 2019 with a Master of Laws from the Vrije Universiteit Brussel.
After completing his studies, he began his career as a property manager for the municipality of Zemst, where he developed a strong interest in Administrative- and Property Law.
In 2020, he joined the law firm LM&DS in Mechelen, where he further specialized in Administrative Law, with a particular focus on Environmental Law (spatial planning and environmental regulations).
Since 2025, he has continued his legal career at Andersen in Belgium, as part of the Real Estate and Public Law team, which also focuses on Environmental Law.
Over the years, he has built up extensive experience in these fields, as well as in the closely related areas of Real Estate- and Property Law. He advises companies, public authorities, and private clients on complex legal issues related to spatial planning, environmental matters, and real estate.
He was registered at the Antwerp Bar in 2020. He is also a member of the Brussels Bar since 2025.
Since 2025, he has also been an author with Wolters Kluwer and has already published several academic articles.
Publications:
- OSORIO OLIVERA M., “Commentaar bij art. 78 OVD – Het zakelijk karakter van de omgevingsvergunning” in X., Omgevingsvergunning. Artikelsgewijze commentaar met overzicht van rechtspraak en rechtsleer, Wolters Kluwer, 2025, 97.
- OSORIO OLIVERA M., “Commentaar bij art. 79 OVD – De overdracht van de omgevingsvergunning” in X., Omgevingsvergunning. Artikelsgewijze commentaar met overzicht van rechtspraak en rechtsleer, Wolters Kluwer, 2025, 115.
- OSORIO OLIVERA M., “Commentaar bij 4.3.5 VCRO – De voldoende uitgeruste weg” in X., Omgevingsvergunning. Artikelsgewijze commentaar met overzicht van rechtspraak en rechtsleer, Wolters Kluwer, 2025, in redactie.
- OSORIO OLIVERA M., “Commentaar bij art. 4.2.1, 1° VCRO – De vergunningsplichtige bouwwerken” in X., Omgevingsvergunning. Artikelsgewijze commentaar met overzicht van rechtspraak en rechtsleer, Wolters Kluwer, 2025, in redactie.
- OSORIO OLIVERA M., “Commentaar bij art. 4.2.1, 6° VCRO – De vergunningsplichtige functiewijzigingen” in X., Omgevingsvergunning. Artikelsgewijze commentaar met overzicht van rechtspraak en rechtsleer, Wolters Kluwer, 2025, in redactie.
Expertises
Litigation and Arbitration
Urban Planning and Environmental Law
Administrative Law and Public Procurement
Qualification
- Bachelor of Laws - UA (Universiteit Antwerpen) - 2017
- Master of Laws - VUB (Vrije Universiteit Brussel) – 2019 (cum laude)
Languages
- Dutch
- English
- German
- French
- Spanish
Legal News
06.11.2025
•Administrative Law and Public Procurement
Proposed decree: EIA screening transferred to higher government
Local authorities face a dilemma: they want to invest in public construction projects, but are no longer allowed to assess their own projects when these have a significant impact on the environment. A new draft decree aims to break the deadlock, but at the same time raises questions about how independent the assessment will really be when it is simply shifted to another political level.
22.10.2025
•Urban Planning and Environmental Law
Reconstruction of destroyed or damaged non-zoned dwelling: No time pressure without a clear insurance amount
The Council for Permit Disputes (RvVb) recently overturned a decision by the province of East Flanders to refuse an environmental permit for the reconstruction of a burned-down, non-zone-compliant dwelling. The RvVB ruled that the period within which the application for such a permit must be submitted only begins once there is certainty about the amount of insurance granted.
02.10.2025
•Urban Planning and Environmental Law
Local authorities no longer judge and participate in their own construction projects
The Constitutional Court has ruled that construction projects initiated by local authorities, that could have a significant impact on the environment, may no longer be assessed by those authorities themselves. This not only puts current and future construction projects at risk, but also jeopardizes permits that have already been granted.