The Constitutional Court has cancelled the provisions of the Brussels Ordinance of April 25, 2024 that abolished the federal registration requirement for residential lease agreements. With these provisions, the Brussels legislator wanted to avoid that landlords in the Brussels-Capital Region have to comply with additional (in their view unnecessary) administrative obligations. The Federal Council of Ministers requested the annulment of these provisions because the Brussels legislator had exceeded its powers.

From January 1, 2025, landlords in the Brussels-Capital Region are obliged to register residential lease agreements in the new regional registration system. In addition, the Brussels legislator abolished the federal registration obligation for residential lease agreements. This is to prevent landlords from being faced with unnecessary administrative burdens.
The Federal Council of Ministers, which lodged an appeal for annulment of this repeal, argued that the abolition of the federal registration obligation for residential lease agreements constitutes an infringement of the federal competence regarding the registration formality for and the registration fee on residential lease agreements.
On April 3, 2025, the Constitutional Court upheld the Council of Ministers’ appeal for annulment.
The Court noted that, since July 1, 2014, the regions are competent to lay down specific rules on the rental of dwellings or parts thereof. On the basis of this competence, the Brussels Region is competent to provide for its own regional registration system for residential lease agreements, but this is limited to regulating the civil law consequences of such registration.
It does not allow regions to abolish the federal registration obligation, as this is a tax obligation introduced by the federal state on the basis of Article 170 § 1 of the Constitution.
Consequently, on April 3, 2025, the Constitutional Court annulled the abolition of the federal registration obligation in the Brussels Ordinance of April 25, 2024.
Note that landlords in the Brussels-Capital Region remain subject to a double registration obligation! They must register the residential lease agreement in both the new Brussels regional system and the federal system via MyRent.
In a previous article, we discussed the most important aspects of the new regional registration requirement. You can consult this on our website or via this link: https://be.andersen.com/en/news-belgium/renting-in-brussels-new-guidelines-for-registration-of-the-rent-contract-starting-1-january-2025
If you would like further information on this subject, please contact our specialists on info@be.Andersen.com or +32 2 747 40 07.
I am looking for a specialist in

12.11.2025
•Urban Planning and Environmental Law
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.

07.11.2025
•Urban Planning and Environmental Law
The Council for Permit Disputes (RvVb) annulled, on 9 October 2025, a financial charge imposed in a decision granting an environmental permit. Such a charge may, since 2024, only be imposed on the basis of an urban planning regulation within the meaning of Articles 2.3.1 and 2.3.2 of the Flemish Code for Spatial Planning (VCRO). Prior to the amendment of the Decree, the Environmental Permit Decree did provide that such a financial charge could be imposed by the permitting authority and under what conditions, but it was not required that a regulation be included in an urban planning ordinance.

06.11.2025
•Administrative Law and Public Procurement
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.

04.11.2025
•Administrative Law and Public Procurement
On October 23, 2025, the new European threshold amounts that tighten public procurement regulations were published in the European Official Journal. When awarding public procurements, the contracting authority must take into account a number of threshold amounts.