Brussels Office Market Remains Subdued in Q2 2026 Amid Occupier Caution and Selective Investment Activity
Cautious Leasing Activity
The Brussels office occupier market remained subdued in Q2 2026, reflecting continued occupier caution and a slower decision-making environment. Leasing activity remained below historical averages, although several sizeable transactions and pre-letting agreements helped support take-up during the quarter. The Leopold district remained the most active submarket, while the Airport area gained momentum on the back of strong interest in newly developed office schemes.
Stable Prime Rents
Prime rents remained stable across the Brussels office market during Q2 2026, demonstrating the resilience of high-quality assets despite softer occupier activity. Rental growth was recorded in selected submarkets, particularly where modern developments successfully attracted occupiers. Average rents generally remained firm, supported by the continued preference for sustainable, high-specification office space.
Strong Development Pipeline
The development pipeline remains substantial, with a significant volume of new office space scheduled for delivery by year-end. Most upcoming projects are concentrated in the City Centre, Leopold district and Airport area. Occupier confidence in best-in-class buildings remains evident, with a large share of future deliveries already pre-let ahead of completion.
Vacancy Trends
Vacancy increased during the quarter, mainly driven by the completion of several large office developments that are still being absorbed by the market. While availability rose in certain CBD locations, Grade A vacancy remains limited overall, reflecting sustained demand for modern office accommodation. Office-to-alternative-use conversions continue to play an important role in reducing obsolete stock and supporting the long-term rebalancing of the market.
Selective Investment Activity
Investment activity remained modest in Q2 2026 as cautious market sentiment continued to weigh on transaction volumes. Despite a challenging investment environment, investor appetite for well-let assets with secure income streams remains strong. Demand is increasingly extending beyond traditional prime assets, with investors focusing on properties offering stable occupancy and long-term income security.
