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Home/ Matias Osorio Olivera

Matias Osorio Olivera

Counsel

Administrative Law and Public Procurement / Urban Planning and Environmental Law / Litigation and Arbitration

Matias Osorio Olivera
+32 2 747 40 07
matias.osorio.olivera@be.Andersen.com
Matias Osorio Olivera
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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.

He is also a member of the Municipal Commission for Spatial Planning (GECORO) of the city of Mechelen for the 2025-2030 legislative period.

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

Litigation and Arbitration

Urban Planning and Environmental Law

Urban Planning and Environmental Law

Administrative Law and Public Procurement

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

Memberships

  • Member of the Municipal Commission for Spatial Planning (GECORO) for the city of Mechelen
  • Legal News

    The Enforcement Measures Register for Notaries and Real Estate Agents: Check First, Then Sell

    03.04.2026

    Administrative Law and Public Procurement, Real Estate, Renting and Co-ownership, Andersen in Belgium

    The Enforcement Measures Register for Notaries and Real Estate Agents: Check First, Then Sell

    Since 1 April 2026, notaries and real estate agents will be required to consult the new enforcement measures register for every real estate transaction. Information that often remains under the radar today will become visible tomorrow and must also be actively disclosed to purchasers.

    Read the article »
    Soil Decree Updated: Pragmatism Gains Ground
    LEGAL NEWS

    20.03.2026

    Urban Planning and Environmental Law, Andersen in Belgium, LEGAL NEWS

    Soil Decree Updated: Pragmatism Gains Ground

    On 23 March 2026, several amendments to the Soil Decree enter into force. Although these adjustments may at first glance appear largely technical, they clearly address an existing tension within Flemish soil policy: the gap between theoretical standards and their practical applicability. With this reform, the legislator explicitly opts for a more flexible and enforceable framework.

    Read the article »
    Late-filed documents may alter the outcome of the permitting process
    LEGAL NEWS

    08.12.2025

    Urban Planning and Environmental Law, Andersen in Belgium, LEGAL NEWS

    Late-filed documents may alter the outcome of the permitting process

    Permit applications must be handled fairly: applicants for urban and environmental permits may not submit new technical studies or other important documents when the parties concerned are no longer able to review or comment on them in a timely manner. Yet this practice is commonplace, much to the frustration of many applicants and their legal counsels. In a judgment of 23 October 2025, the Council for Permit Disputes (CPD) now puts an end to this.

    Read the article »
    Permanent residence not a condition for inclusion of a dwelling in the permit register
    LEGAL NEWS

    12.11.2025

    Urban Planning and Environmental Law, Andersen in Belgium, LEGAL NEWS

    Permanent residence not a condition for inclusion of a dwelling in the permit register

    The Council for Permit Disputes (RvVb) confirms that permanent residence is not a requirement for inclusion as a dwelling in the permit register. It is sufficient that the construction is primarily intended for residential use. A request for inclusion in the permit register may therefore not be refused on the grounds that permanent residence has not been demonstrated.

    Read the article »