Brussels office market sees strong take-up in Q2 2025

 

The second quarter of 2025 marked a significant period for the Brussels office market, recording its highest quarterly take-up in nearly four years, reaching an impressive 139,000 m². This surge was largely propelled by substantial deals, most notably Proximus’s lease of 44,000 m².

 

Despite this robust demand from major occupiers, the overall number of transactions remained below the 10-year average, indicating a cautious approach among some businesses amidst ongoing macroeconomic uncertainties.

 

For companies seeking office space in Brussels, this strong take-up signals continued appeal and activity in the market.

 

Navigating vacancy rates and rental dynamics

 

For businesses evaluating their options, understanding vacancy and rental trends is crucial. In Q2 2025, the overall office vacancy rate in Brussels experienced a slight increase to 8.3%. Similarly, the vacancy rate for Grade A office spaces also saw a rise, primarily due to recent completions entering the market. This presents potential opportunities for businesses looking for premium, modern office environments.

 

Prime office rent, a key indicator for top-tier locations, held steady at €400/m²/year, showcasing stability in the most sought-after areas. Interestingly, the North district, a vibrant commercial hub, recorded an increase in its prime rent to €315/m²/year, reflecting growing interest and value in this specific area.

 

New developments shaping future supply

 

The Brussels office market continues to evolve with new supply. Q2 2025 saw the completion of 35,000 m² of new office space, adding fresh inventory to the market. Looking ahead, an additional 58,700 m² is anticipated to be completed in the second half of the year. This pipeline of new developments offers businesses a wider range of modern, efficient, and potentially sustainable office options, allowing for more choice and flexibility in securing the right space for their operations.

 

Investment trends in the Brussels office market

 

While tenant activity was high, office investment in Brussels remained relatively low during Q2 2025, totaling €231 million. This figure provides a broader context of market sentiment among investors and can indirectly influence future supply and pricing, making it an important piece of information for businesses planning long-term office strategies.

 

Source: cbre.be