Summary: Tenant improvement costs in Arizona in 2026 range from $80–$150/SF for standard office or retail, $150–$200/SF for restaurant buildouts, and $175–$250+/SF for medical or dental spaces. Timelines run 4–16 weeks. These figures reflect Northern Arizona labor and material conditions as of Q2 2026.
Planning a commercial space in Flagstaff or Northern Arizona and trying to figure out what a tenant improvement is going to cost? You've come to the right place. We've compiled real project data from tenant improvements we've completed across Northern Arizona — offices, retail spaces, restaurants, and medical facilities — to give you the most accurate 2026 cost picture available.
Unlike the national averages you'll find on other websites, these numbers reflect actual Northern Arizona market conditions, including current labor rates, material costs, and permit fee structures from the City of Flagstaff and Coconino County.
2026 Tenant Improvement Costs by Space Type
The table below summarizes current cost ranges for common tenant improvement project types in Northern Arizona.
| Space Type | Cost / SF (2026) | Typical Scope | Timeline |
|---|---|---|---|
| Office (Standard) | $80 – $120 / SF | Partitions, flooring, lighting, paint, basic HVAC | 4–6 weeks |
| Office (High-End) | $120 – $175 / SF | Glass partitions, custom millwork, full AV, premium finishes | 8–12 weeks |
| Retail (Standard) | $85 – $130 / SF | Storefront, flooring, lighting, fitting rooms, checkout area | 4–8 weeks |
| Retail (Flagship) | $130 – $200 / SF | Custom fixtures, feature walls, full display system, premium lighting | 8–14 weeks |
| Restaurant (Standard) | $150 – $175 / SF | Commercial kitchen, hood system, dining room, plumbing | 10–14 weeks |
| Restaurant (Upscale) | $175 – $250+ / SF | Full bar, custom finishes, high-end kitchen, branded interior | 12–18 weeks |
| Medical / Dental | $175 – $250+ / SF | Exam rooms, plumbing, casework, ADA, HVAC zoning, lead shielding (dental) | 12–18 weeks |
| Warehouse / Industrial | $60 – $100 / SF | Office build-in, dock doors, mezzanine, utility upgrades | 4–10 weeks |
* Data reflects Northern Arizona (Flagstaff, Prescott, Sedona) Q1–Q2 2026. Costs exclude kitchen equipment, furniture, and signage.
What Drives Tenant Improvement Costs Higher?
The cost per SF is a starting point. Here's what can push your actual project cost above the baseline:
- Existing conditions: Outdated MEP (mechanical, electrical, plumbing) that needs complete replacement adds $15–$30/SF to any project type.
- Space type: Restaurant and medical buildouts have the highest cost due to specialized equipment rough-ins, code compliance, and inspection requirements.
- Finish level: The difference between standard and premium finishes alone can add $20–$50/SF across the whole space.
- Permit fees: Flagstaff permit fees typically run $2,000–$15,000+ depending on project scope and valuation. We include this in our estimates.
- Labor market: Northern Arizona labor costs have increased 12–18% since 2023. Projects that were $100/SF in 2023 are closer to $115–$118 today.
What is a Tenant Improvement Allowance (TIA)?
A Tenant Improvement Allowance (TIA) is money provided by the landlord to help offset the cost of building out a commercial space for a new tenant. In competitive markets, TIAs can significantly reduce your out-of-pocket cost.
In Arizona 2026, TIAs for commercial leases typically run:
- Class A Office: $50–$100/SF
- Standard Retail: $30–$60/SF
- Restaurant: $25–$50/SF (lower — higher risk for landlords)
- Industrial/Warehouse: $10–$25/SF
The tenant is responsible for all costs above the TIA. If your TIA is $60/SF and the buildout costs $120/SF, you're responsible for the $60/SF gap. Multiple Builders works with tenants and landlords to structure projects that maximize TIA dollars while meeting both parties' requirements.
How to Get an Accurate TI Cost Estimate
Online cost-per-SF ranges are a starting point only. The only way to get an accurate cost for your specific project is to have a licensed contractor walk the space and review your plans. Here's what we look at during a site visit:
- Current MEP condition and capacity
- Existing slab penetrations and plumbing rough-in locations
- HVAC system capacity for planned use
- Structural limitations (especially for restaurant hood systems)
- ADA compliance gaps in the existing space
- Permit fee estimation based on project valuation
Multiple Builders Inc. provides free site visits and written estimates for all tenant improvement projects in Northern Arizona. We respond within 2 hours of your inquiry. Call (928) 707-1651 or submit your project details online.
Frequently Asked Questions
Tenant improvement costs in Arizona in 2026 range from $80–$150/SF for standard office or retail, $150–$200/SF for restaurant buildouts, and $175–$250+/SF for medical or dental spaces. Warehouse TIs are lower at $60–$100/SF. These figures reflect Northern Arizona labor and material costs as of Q2 2026.
The main cost drivers are: space type (restaurant and medical are most expensive), existing conditions requiring MEP upgrades, finish level selection, permit fees ($2,000–$15,000+ depending on scope), and current labor market conditions. Flagstaff has seen labor costs increase 12–18% since 2023.
A TIA is money provided by your landlord to build out the space. In Arizona 2026, TIAs typically run $50–$100/SF for Class A office and $30–$60/SF for retail. You're responsible for costs above the TIA. Multiple Builders works with both tenants and landlords to structure projects that maximize TIA value.
About the Author
Sergio is the founder and owner of Multiple Builders Inc., a licensed general contractor based in Flagstaff, AZ since 2005. With 20+ years of commercial construction experience across Northern Arizona, he has personally overseen hundreds of tenant improvement projects ranging from $50,000 to over $1M. AZROC Licensed #288594 & #291477.