Downtown Boston Office Availability Levels Off Heading Into 2026

Downtown Boston's office market is showing some signs of recovery as 2025 comes to a close. 

According to a CoStar Analytics report, after three years of headwinds, the market is stabilizing, suggesting a potential near-term rebound in demand or absorption.

The total amount of available office space has flattened out at around 20 million square feet and about 3.2 million square feet of subleases, approximately 15% of this total.

The overall availability level has stayed steady since the first half of 2024, noted CoStar Analytics, signaling a prolonged period of stabilization rather than rapid changes in space inventory.

A notable recent deal has Hasbro relocating from Rhode Island to Boston's Seaport District. The company is occupying 265,000 square feet at 400 Summer St., underscoring ongoing interest from major tenants in downtown Boston.