Brussels Office Market Dynamics, Q3 2026

Q3 take-up saw strong year-on-year growth driven by several mid to large-size transactions, though cumulative year-to-date activity remains at its lowest level in over a decade.

Vacancy is on a rising trend, driven by new completions and second-hand stock additions, though reduced development activity may limit further increases over the longer term.

Prime rents are holding steady while average rents continue to edge upward, reflecting ongoing occupier preference for Grade A space across the market.

For additional context on findings in the latest report, download the prior Q2 2026 Brussels office market dynamics report.