The ruling overturned a 2021 one that had determined that the case was time-barred.
Majed Al-Zeer, who was designated by the US earlier this week, was set to lead an event at the private-owned Brussels Press Club with his lobbying organization, EUPAC.
The house searches took place in the cities of Antwerp, Liege and Ghent, among others, and in the Brussels region.
Free University of Brussels's encampment was cleared on Tuesday, the same day as an alleged attack on a Jewish woman walking past the encampment with her dogs.
"Escalate for Palestine, everyone," the graffiti on the Monument to the Righteous of Belgium read.
The memorial plaque in Brussels that a white swastika and the white nationalist version of the Celtic Cross had been painted on the memorial.
Brussels sanitation workers chant death threats against Jewish politician Viviane Teitelbaum. Complaint filed, disciplinary action pursued.
"This is again hopefully a source of encouragement for these countries to take the necessary courageous step," Prime Minister of the Palestinian Authority Mohammad Mustafa said.
While police have not announced a motive, this is one of many incidents this week against Israeli embassies across the globe.
Sven Koopmans said EU members agreed on core priorities such as ending the war, avoiding a regional war, and working towards a two state solution.