How Much Does a Commercial Tenant Improvement Cost in Chicago?
If you're a business owner, tenant, or property manager trying to budget a commercial build-out in Chicago, the first question is always the same: what's this actually going to cost?
The honest answer is that tenant improvement costs in Chicago vary widely depending on the type of space, the condition it's in when you take possession, what trades are involved, and how finished the end product needs to be. A basic white-box office renovation is a completely different animal from a full restaurant build-out or a medical clinic with specialized plumbing and electrical.
This guide gives you real 2026 Chicago market ranges broken down by project type so you can walk into a lease negotiation or a contractor conversation with realistic numbers in your head.
What Is a Tenant Improvement?
A tenant improvement (TI) is any construction work done to customize a commercial space for a specific tenant's use. This includes everything from basic painting and flooring to full demolition and rebuild of walls, ceilings, plumbing, electrical, and HVAC systems.
TI work is typically paid for through some combination of the tenant's own budget, a TI allowance from the landlord, or financing. In Chicago, landlords in competitive markets often offer TI allowances to attract tenants — but those allowances rarely cover the full cost of a real build-out.
Chicago Tenant Improvement Cost Ranges by Project Type (2026)
Basic Office Renovation — $40 to $75 per square foot
This covers a space that's already in decent shape and needs cosmetic updating: new paint, new flooring, ceiling tile replacement, lighting upgrades, and minor partition work. No major plumbing or HVAC changes. A 3,000 SF office in this category typically runs $120,000 to $225,000.
Full Office Build-Out from White Box — $75 to $120 per square foot
Starting from a white-box or vanilla-box condition, this includes framing new partitions, drywall, ceilings, electrical, data, HVAC distribution, flooring, painting, doors and hardware, and finish millwork. A 3,000 SF office in this category runs $225,000 to $360,000.
Retail Storefront Build-Out — $60 to $130 per square foot
Retail build-outs vary dramatically based on the brand's finish requirements. A simple neighborhood retail or service business runs on the lower end. A flagship retail location with custom millwork, specialty lighting, storefront glass modifications, and high-end finishes pushes toward the top of the range. A 2,000 SF retail space typically runs $120,000 to $260,000.
Restaurant Build-Out — $150 to $300+ per square foot
Restaurant construction is the most expensive category because of the complexity of the kitchen — grease traps, hood systems, ventilation, commercial plumbing, gas lines, health department requirements, and fire suppression. A 2,500 SF restaurant from shell condition can easily run $375,000 to $750,000 or more depending on kitchen size and finish level.
Medical or Dental Office Build-Out — $100 to $200 per square foot
Medical office build-outs require specialized plumbing for clinical sinks and dental units, higher electrical loads, specific room configurations for exam rooms and reception, and compliance with healthcare facility standards. A 2,000 SF medical office build-out typically runs $200,000 to $400,000.
Light Industrial or Warehouse Finishing — $25 to $60 per square foot
Medical office build-outs require specialized plumbing for clinical sinks and dental units, higher electrical loads, specific room configurations for exam rooms and reception, andAdding a finished office section to an industrial or warehouse space, including basic HVAC, lighting, drywall partition walls, flooring, and bathrooms, is typically the least expensive category. A 1,500 SF office addition in a warehouse runs $37,500 to $90,000.compliance with healthcare facility standards. A 2,000 SF medical office build-out typically runs $200,000 to $400,000.
What Drives Cost Up or Down
Space Condition at Delivery
A cold dark shell — bare concrete, no HVAC, no electrical beyond a panel, no plumbing — costs significantly more to build out than a second-generation space where a prior tenant already installed ceilings, HVAC, electrical, and plumbing that you can reuse or modify. Always ask what condition the space will be in at lease commencement before you budget.
Permit Requirements
Chicago permit timelines and fees are real costs. Most commercial TI projects in Chicago require a building permit, electrical permit, plumbing permit if there's any plumbing work, and in some cases fire suppression permits. Budget 4 to 8 weeks for permit approval on a standard TI scope and factor in permit fees which typically run $2,000 to $8,000 depending on project value and scope.
How Many Trades Are Involved
A scope limited to painting, flooring, and drywall involves far fewer trades and far less coordination than a scope that also includes electrical, plumbing, HVAC, fire suppression, and millwork. Each additional trade adds cost, coordination time, and scheduling complexity.
How Many Trades Are Involved
Commercial grade finishes — standard ceiling tile, LVT flooring, paint-grade doors, basic hardware — cost significantly less than high-end finishes like polished concrete, custom millwork, glass partitions, specialty tile, and architectural lighting. Define the finish level before budgeting.
Schedule Pressure
If you need the space open in 8 weeks instead of 16, expect to pay a premium for overtime, weekend work, and accelerated delivery from suppliers. Chicago commercial contractors can move fast, but speed costs money.
What a TI Allowance Actually Covers
Landlords in Chicago's commercial market often offer TI allowances expressed as dollars per square foot — $40/SF, $60/SF, $80/SF. These sound significant but frequently fall short of actual build-out costs, especially for restaurants, medical offices, or any full gut-and-rebuild scenario.
A $60/SF TI allowance on a 3,000 SF space gives you $180,000. That covers a basic office renovation but leaves a significant gap for a full build-out. Understanding this gap before you sign a lease is critical — it becomes a negotiating point with the landlord and a planning input for your financing.
How to Get a Realistic Budget Before You Commit
The best way to avoid budget surprises is to get a rough order of magnitude (ROM) estimate from a commercial contractor before you sign a lease. A good contractor can walk the space, review the scope, and give you a realistic range in a few days — without charging you for it.
That estimate becomes leverage in lease negotiations. If the space needs $300,000 in improvements and the landlord is offering $100,000 in TI allowance, you now have a factual basis to negotiate a higher allowance, lower rent, or both.
Chicago Construction Crew provides early ROM budgets for commercial tenants, property managers, developers, and brokers throughout the Chicago metro. We help you understand what a space actually costs to build before you're locked into a lease.
Ready to get a real number on your project? Request a commercial bid or call George directly at 773-934-1500