U.S. office space leasing activity regained momentum in 2025, rising more than 5% year over year as tenants signed an estimated 410 million square feet nationwide, according to CoStar Analytics. While the national headline points to recovery, the underlying story is far more nuanced. Smaller deal sizes, uneven geographic performance, and constrained availability of premium space continue to define the market. Nowhere is this dynamic more instructive than in the Chicago region, where fundamentals are improving, but tenant behavior has permanently shifted.
Chicago’s Office Market: Stabilizing, Not Surging
For Chicago, the 2025 rebound translated into modest year-over-year leasing gains, though activity remains below late-2010s norms. This places Chicago’s office market squarely in the “steady but selective” category. Unlike coastal tech hubs that saw demand spikes from AI-driven users, Chicago’s recovery has been led by professional services, healthcare-adjacent users, logistics-administration teams, and suburban relocations rather than headline-grabbing mega-deals.
The data underscores a critical point for Chicago landlords and occupiers alike: leasing velocity is returning, but average deal sizes have compressed. With national average lease sizes now hovering around 3,500 square feet, Chicago mirrors this trend closely. Tenants are prioritizing efficiency, flexible layouts, and high-quality finishes over scale, especially in the Loop and established suburban office corridors.
Flight-to-Quality Benefits Select Chicago Assets
Chicago continues to experience a pronounced flight-to-quality. Well-located, updated buildings with strong parking ratios and access to transportation are outperforming commodity assets. This is especially evident in suburban submarkets such as Libertyville, Lake County, and the northern I-94 corridor, where users are trading older, inefficient footprints for right-sized space closer to their workforce.
Sublease Space and Shorter Commitments Shape Strategy
One implication of the national slowdown in new office development is particularly relevant for Chicago. As new supply dries up, large tenants that might have considered relocations are instead opting for short-term renewals, sublease opportunities, or modest expansions within existing buildings. Chicago has a deep inventory of sublease office space, which is becoming a practical solution for tenants seeking flexibility without long-term risk.
This environment favors owners who are proactive. Flexible deal structures, targeted capital improvements, and realistic pricing are critical to maintaining occupancy. From a market strategy standpoint, Chicago is less about chasing growth and more about defending position and selectively capturing demand.
What This Means for Owners, Investors, and Occupiers in Chicago
For Chicago-area stakeholders, the takeaway is clear. The office market is no longer defined by volume alone, but by precision. Demand exists, but it is disciplined. Buildings that fail to adapt risk prolonged vacancy, while those aligned with today’s tenant preferences can outperform despite muted headline growth.
From an advisory perspective, navigating this market requires granular, submarket-level insight. Whether evaluating an office conversion, repositioning legacy assets, or balancing office holdings alongside Chicago’s industrial real estate, Chicago owners increasingly rely on an experienced commercial real estate broker or commercial real estate agent to structure deals that reflect current realities rather than pre-pandemic assumptions.
Looking Ahead to 2026 in Chicago
As 2026 unfolds, Chicago’s office market is unlikely to see dramatic leasing spikes. Instead, expect continued stabilization driven by smaller deals, selective absorption, and a clear divide between competitive and obsolete assets. For disciplined owners and well-advised tenants, this is not a market to fear, but one that rewards clarity, flexibility, and execution.
In short, Chicago is not lagging the recovery; it is redefining it on its own, more deliberate terms.