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Commercial & tenant improvement

What is a tenant improvement?

A tenant improvement (TI) is interior buildout work done to adapt commercial space for a specific tenant — partitions, flooring, ceilings, lighting, restrooms, and trade work. TIs are typically funded by a landlord allowance ($30–$120/sqft) plus tenant out-of-pocket.

California commercial TIs require a building permit and trigger ADA accessibility upgrades to the path of travel and primary restrooms when scope exceeds defined thresholds.

TI timelines run 6–16 weeks for office and retail; restaurant and medical TIs run 12–28 weeks because of mechanical, plumbing, and health-department review.

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Related questions

  • How much does a tenant improvement cost?
  • How long does a TI take?
  • Who pays for a tenant improvement?
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