Stadim Focus Office Market Belgium: Market Report 2025

The Belgian office market ended 2025 in a context of gradual stabilisation. Economic growth reached approximately 1.2%, while inflation declined to an average of around 2.5%. Lower short-term interest rates and a stable 17-year OLO yield of around 3.70% contributed to increased price transparency and renewed confidence. The market shifted from a correction phase towards selective renewed investment activity. Although investment volumes remained below the historical average, they clearly focused on sustainable and future-proof office assets. The ongoing polarisation between prime and obsolete buildings persisted. Prime office rents in Brussels remained around €400/m², with a rental premium of 5–10% for BREEAM Excellent or Outstanding assets.