While La Défense has been enjoying an interesting rental dynamic for several months, with take-up up up 60% in 2024 and 15% in Q1 2025, the business district is preparing to see a significant amount of space vacated in one of its most emblematic office buildings, Business Immo has learned. According to our information, Orange Business is preparing to vacate the 11 floors it occupies in Tower B of Cœur Défense.