Commercial
Tenant Improvement Cost per Square Foot in LA and Orange County
Tenant improvement budgets fail for a predictable reason: the deal is negotiated on rent and allowance, and the building’s actual condition is examined afterwards. Reversing that order is the highest-return hour in commercial real estate.
June 24, 2026 · By Sandra Burga
Typical ranges by use
Standard office fit-out commonly runs roughly $80 to $160 per square foot. Creative office with exposed systems runs higher. Medical and dental typically run roughly $180 to $350. Retail varies enormously with brand standard. Restaurant work commonly runs $250 to $600 depending on whether you inherit a usable kitchen.
The three conditions that decide your number
Before finishes, before layout, before anything a designer shows you, these decide the budget.
- Occupancy classification. Changing it triggers exiting, ventilation and sometimes structural work. This is the largest hidden cost in the category.
- Base building capacity. Existing HVAC tonnage, electrical service and restroom fixture counts either support your headcount or they do not.
- Accessibility. Permitted work above a value threshold can require path-of-travel upgrades outside your suite entirely, and the lease decides who funds them.
Read the work letter as a budget document
An allowance quoted per square foot means little without knowing what it is measured against, when it is paid, what it excludes, and who owns the improvements at lease end. We review work letters before signature and translate them into a construction budget, which frequently changes the negotiation.
Questions on this topic
Should we look at a space before signing?
Always. A test fit and base building review before signature is the difference between an allowance that covers the work and a six-figure gap you discovered too late.
Can we stay open during the fit-out?
Often yes, with phasing and off-hours work. It costs more per square foot and usually less than closing.
Keep reading
ADU
What an ADU really costs in Southern California in 2026
Detached, attached and garage conversion cost ranges, plus the four site variables that decide where inside those ranges your project lands.
ADU
ADU rules city by city: how LA and Orange County departments differ
State law sets the floor for ADUs. What still varies is coastal review, objective design standards, fee schedules and how many correction cycles a department runs.
Permitting
What plan check corrections actually cost you
Permit fees are published. Correction cycles are not, and they are usually the larger number. Here is what triggers them and how to avoid most of them.
