- Class A and Trophy assets continue to lead Downtown leasing activity, making up 51.3% of all Boston office inventory. While upper-floor "view space" remains the most coveted, vacancy trends have inverted since 2019, with floors 20+ currently showing higher availability than lower-tier blocks.
- This vacancy shift is largely driven by high-profile recent deliveries, such as South Station Tower, which have introduced significant premium blocks to the upper-stack market.
- Expect upper-level vacancy to tighten as major occupiers prioritize high-spec, high-amenity space to incentivize "Return to Office" mandates.
Boston’s upper floors see higher vacancy in 2025
March 19, 2026
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