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Brussels Office MarketView Q4 2025
European deals propel the market higher, as the case builds for core investment
February 11, 2026 6 Minute Read
Summary
The Brussels’ office occupier market finished the year with solid performance, driving annual take-up to just shy of 400,000 m². European institutions were active through the year, closing four large deals that helped boost take-up despite the more limited number of office transactions overall. Mid-cap companies also took decisive action late in the year, signing deals in the Periphery Airport, Periphery South and City Centre markets.
Prime rents remained stable in central markets but experienced increases in select decentralised and peripheral markets. Average rents, however, continued to rise, particularly in the Leopold district.
Vacancy held stable this quarter with steady absorption in well located grade A assets despite some large buildings still seeking tenants.
Development activity is set to accelerate next year to levels not seen since 2022. Of this amount, approximately half of expected development is already secured.
Investment volumes approached €1 billion in Brussels offices, reflecting renewed interest in core assets and ongoing appetite for value add opportunities. The Egmont I & II, trading for the third time since 2018, was the largest office deal of the quarter.
Overall, the market showed pockets of resilience in 2025, with cautious optimism building for 2026.
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