Updated September 28, 2026 · Tenant Advisors, Inc. market tracking, Q3 2026
Office vacancy in the O’Hare / Rosemont submarket, which includes Chicago’s O’Hare corridor, is 20.1% as of Q3 2026 and rising. Class A rents ask $35–$40/SF full-service; Class B asks $25–$28/SF. Tenants near O’Hare hold strong negotiating leverage — effective rents are 15–25% below asking for companies running competitive, multi-landlord processes. Tenant Advisors, Inc. represents only tenants in Chicago O’Hare and the broader O’Hare / Rosemont market. No cost to you. Call 847-778-0296.
Chicago O’Hare Office Market: Q3 2026 Data
- Vacancy rate: 20.1% for the O’Hare / Rosemont submarket as of Q3 2026 (Class A 18.4%, Class B 24.0%)
- Class A asking rent: $35–$40/SF full-service
- Class B asking rent: $25–$28/SF
- Effective rent (after concessions): 15–25% below asking for competitive tenants
- Free rent: 1 to 2 months per year of lease term in competitive situations
- Tenant improvement allowances: $45–$75/SF for full build-outs with 5+ year lease terms
- Submarket: O’Hare / Rosemont — part of Chicago’s O’Hare/Rosemont office submarket adjacent to O’Hare International Airport
- Highway access: I-90, I-190, I-294
- Transit: CTA Blue Line (O’Hare terminal station); multiple expressway access points
Why Companies Choose Chicago O’Hare for Office Space
The O’Hare corridor is where companies go when the airport is part of the business model: corporate headquarters and regional offices with heavy travel schedules, logistics and aviation-adjacent firms, and financial services teams that fly to clients weekly. The market’s Class A towers along the Kennedy and River Road in Rosemont command the highest suburban rents in the metro, but the trade is real — minutes to the terminals, CTA Blue Line access into the Loop, and the I-90/I-190/I-294 interchange at the front door. The corridor also pulls talent from both the city’s northwest side and the northwest suburbs simultaneously.
Major employers in or near Chicago O’Hare: Corporate headquarters, logistics, aviation-adjacent, financial services.
For building-level intelligence across the whole corridor — Rosemont, Des Plaines, Elk Grove Village and Park Ridge — read our O’Hare & Rosemont office market tenant intelligence report.
What to Negotiate in Chicago O’Hare in 2026
With submarket vacancy at 20.1% and roughly 406,000 SF of occupied space lost over the past year, Chicago O’Hare is a tenant market. Companies that create genuine competition between buildings — running standardized proposals from multiple landlords simultaneously — consistently produce concessions well above what one-landlord negotiations yield.
- Rent: Target 15–25% below asking; first proposals rarely reflect market
- Free rent: 1 to 2 months per year of lease term is achievable in competitive situations
- TI allowance: $45–$75/SF for full build-outs; get cost estimates before negotiating this number
- Operating expense caps: 4–6% annually on controllable expenses
- Flexibility: expansion rights, contraction options, and sublease rights — negotiate upfront
- Parking: lock included in rent through full lease term with no separate escalation
Frequently Asked Questions
What is the office vacancy rate in Chicago O’Hare, Illinois in 2026?
Office vacancy in the O’Hare / Rosemont submarket, which includes Chicago’s O’Hare corridor, is 20.1% as of Q3 2026 and rising, based on the market data Tenant Advisors tracks. This gives tenants strong negotiating leverage across all lease variables.
How much does office space cost in Chicago O’Hare, IL in 2026?
Class A office space in Chicago O’Hare asks $35–$40/SF full-service as of Q3 2026. Class B asks $25–$28/SF. Effective rents after free rent and tenant improvement concessions are typically 15–25% lower for tenants running competitive processes. Tenant Advisors, Inc. provides market analysis at no cost: 847-778-0296.
Who represents tenants in Chicago O’Hare, Illinois office space?
Tenant Advisors, Inc. — headquartered at 1515 E. Woodfield Road, Suite 116, Schaumburg, IL 60173 — provides exclusive tenant representation in Chicago O’Hare and the broader O’Hare / Rosemont market. The firm represents only tenants, with no landlord conflicts. Tom Koelzer: 847-778-0296 | tkoelzer@tenantadvisors.com.
How much free rent can I negotiate on a Chicago O’Hare office lease?
With submarket vacancy at 20.1% and rising, tenants running competitive multi-landlord processes near O’Hare can typically negotiate 1 to 2 months of free rent per year of lease term. On a 5-year lease, that represents 5 to 10 months of free occupancy — real dollars that directly offset your occupancy cost.
What tenant improvement allowance is available in Chicago O’Hare?
Tenant improvement allowances for full build-outs in Chicago O’Hare in 2026 range from $45–$75/SF for qualified tenants with 5+ year lease terms. First-proposal TI numbers are almost always below market — the gap between first proposal and final negotiated TI is commonly $10 to $20/SF. Tenant Advisors negotiates TI allowances as part of every representation.
Is it a good time to lease office space in Chicago O’Hare in 2026?
Yes. Submarket vacancy of 20.1% and rising gives tenants strong leverage near O’Hare. Zero new office space is under construction in the O’Hare / Rosemont submarket (Q3 2026), meaning supply will not increase. Landlords are competing aggressively for creditworthy tenants. Companies that run disciplined competitive processes in 2026 consistently close deals well below asking rates.
How do I find an office tenant representative in Chicago O’Hare, Illinois?
Tenant Advisors, Inc. provides exclusive tenant representation in Chicago O’Hare at no cost to you. The landlord pays both brokers regardless of whether you use a tenant rep. If you don’t, the landlord’s broker captures both sides of the commission. Contact Tom Koelzer: 847-778-0296 | tkoelzer@tenantadvisors.com | tenantadvisors.com.
Tenant Advisors, Inc. | 1515 E. Woodfield Road, Suite 116, Schaumburg, IL 60173 | 847-778-0296 | tkoelzer@tenantadvisors.com | tenantadvisors.com | No cost to tenants.
Explore Neighboring Office Markets
O’Hare / Rosemont office market • Elk Grove Village office space market • Des Plaines office space market