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Tenant Improvement
Permit Expediting
A Tenant Improvement permit authorizes interior renovations within an existing commercial space. We manage the full TI permit process — from scope review through final inspection — for office, retail, restaurant, and medical projects in Los Angeles and across Southern California.
TI permits are among the most common commercial building permits — and among the most misunderstood. The range of required reviews depends on project scope, occupancy type, and whether the use is changing. A simple office repaint requires no permit. But moving a single partition wall, upgrading electrical panels, or converting a retail space to food service triggers a full plan check cycle with multiple agencies.
We determine exactly what your project requires, build the permit strategy accordingly, and manage every agency relationship from initial submission to permit issuance — so your contractor can start on schedule. For projects still at the design stage, our pre-submittal consulting service can flag change-of-occupancy and CUP triggers before your architect finalizes drawings.
TI Permit Expediting Fees
Our expediting fees are separate from LADBS government plan-check and permit fees, and scale with the number of agencies your project touches:
The LADBS TI Plan Check Process
A commercial TI moves through a defined sequence at LADBS Plan Check Engineering, with additional tracks added when your scope requires them:
Project Types We Permit
Office Remodels
Interior renovations for corporate offices, co-working spaces, creative studios, and professional service suites. Scope typically includes partition walls, electrical, data/telecom infrastructure, HVAC modifications, and restroom upgrades.
Retail Buildouts
New tenant build-outs for storefronts, showrooms, franchise locations, and specialty retail. We manage the building permit alongside sign permit applications so your signage is approved in time for opening.
Restaurant Conversions
Converting existing commercial space to food service occupancy is one of the most permit-intensive TI types, requiring coordination between LADBS, LAFD, Health Department, and Public Works. See our full restaurant permits page for details.
Medical & Dental Offices
Healthcare facility fit-outs with additional requirements for medical gas, plumbing fixture counts, ADA path of travel, and OSHPD compliance where applicable. We identify OSHPD triggers at project outset.
Fitness & Wellness Studios
Yoga studios, gyms, and spa facilities often require occupancy load recalculations, sprinkler system upgrades, and ventilation modifications. Occupancy type affects whether LAFD clearance is required.
Industrial & Warehouse TIs
Light manufacturing, distribution, and flex-space improvements including mezzanines, dock modifications, and HVAC system upgrades. Seismic and structural requirements are common for mezzanine additions.
What We Manage
- 01
Pre-Submittal Scope Review
We determine which permits are required, which agencies must sign off, and whether the project triggers a change of occupancy or use — which requires Planning review and can add months to a timeline. This assessment happens before drawings are prepared, saving design costs.
- 02
Application Preparation & Completeness Check
We prepare a complete plan package formatted to LADBS and jurisdiction-specific standards. A complete first submittal dramatically reduces the chance of intake rejection and shortens the overall plan-check cycle.
- 03
LADBS Plan Check Coordination
We submit, track progress, and respond to plan check corrections directly — communicating with plan checkers on technical questions, clarifying scope, and providing supplemental information without delays from intermediaries.
- 04
Multi-Agency Clearances
Where the project scope triggers additional agencies — LAFD for fire life safety, Public Works for grease interceptors, Health Department for food service, or City Planning for change of use — we manage concurrent submissions and track each independently.
- 05
Ready-to-Issue & Permit Issuance
We confirm all clearances are in place, fees are calculated, and the permit is ready to issue before your contractor schedules demolition. A permit that issues on a Monday can mean your GC is on site that week.
- 06
Inspection Coordination
We prepare an inspection roadmap for your contractor: which inspections are required, in what sequence, and what must be in place for each one. Inspections that fail cost time and money; preparation prevents that.
TI Permit Timelines in Los Angeles
Timelines below reflect well-prepared, complete submittals. Incomplete applications and missed agency requirements significantly extend these ranges.
| TI Project Type | Typical Timeline |
|---|---|
| Simple interior TI (no change of use, no structural) | 3–6 weeks |
| Office remodel with electrical and HVAC modifications | 4–8 weeks |
| Retail buildout with storefront modifications | 4–10 weeks |
| Medical office fit-out with plumbing and medical gas | 6–12 weeks |
| Restaurant conversion (existing food service space) | 3–5 months |
| Restaurant conversion (non-food to food service) | 4–6 months |
| Change of occupancy requiring Planning approval | +4–12 weeks additional |
| Projects requiring LAFD clearance (sprinkler modifications) | +4–8 weeks additional |
Hidden Triggers That Delay TI Permits
Change of occupancy
Converting a retail space to a restaurant, a warehouse to office, or an office to a medical clinic changes the building's occupancy classification — triggering a full change-of-use review by Planning and often LAFD. Missing this trigger is the most expensive TI permit mistake.
Structural modifications
Removing or adding walls, creating openings, or installing mezzanines may require structural engineering review and a separate structural permit. Load-bearing wall identification should happen before demolition begins — not after.
Sprinkler system modifications
Moving or adding sprinkler heads — even just to accommodate a new partition layout — requires an LAFD permit. LAFD plan check runs on its own timeline, separate from LADBS, and must complete before the certificate of occupancy is issued.
Electrical service upgrades
Commercial TIs often require panel upgrades due to new equipment loads. Service upgrades require an electrical permit and a LADBS electrical inspection — and if the project involves adding EV charging, that adds another layer.
ADA path of travel
Any permitted alteration to a commercial space triggers accessible path-of-travel compliance under California Building Code Chapter 11B and Title III of the Americans with Disabilities Act — extending beyond the alteration itself to restrooms, parking, and building entry. Pre-submittal scoping prevents surprise upgrades discovered during plan check.
Common Questions
What is a Tenant Improvement permit?
A Tenant Improvement (TI) permit authorizes interior renovations within an existing commercial space — without changing the building's structural shell. Common TI projects include office remodels, retail buildouts, restaurant conversions, and medical clinic fit-outs. TI permits are required whenever interior work affects egress, fire life safety systems, structural elements, or mechanical, electrical, and plumbing systems under the LA Building Code (LABC), the City's amended version of the California Building Code.
What agencies review a Tenant Improvement permit in LA?
Most TI permits in the City of Los Angeles go through LADBS Plan Check Engineering for building review. Depending on scope, additional clearances may be required from LAFD (fire life safety and sprinklers, LAMC Chapter V, Article 7), the LA County Department of Public Health (food service facilities), LA Bureau of Sanitation (grease interceptors under LAMC Section 64.30), and LA City Planning (change of use or CUP under LAMC Section 12.24). We identify every required agency at project outset and manage all tracks simultaneously.
How long does a TI permit take in Los Angeles?
Simple interior TI permits with no change of use can be approved in 3–6 weeks over the counter at LADBS. Projects involving a change of occupancy, structural modifications, or LAFD review typically take 8–16 weeks. Restaurant conversions from non-food-service spaces can take 4–6 months due to health department and public works coordination. Pre-submittal planning is the most effective way to compress the timeline.
Do I need a permit for an office remodel?
In most cases, yes — if the work involves moving partition walls, adding or modifying electrical or HVAC systems, changing egress, or installing new plumbing. Cosmetic work like paint, carpet, and millwork generally does not require a permit under LABC Section 105. But any work affecting fire-rated assemblies, electrical panels, or the mechanical system does. We conduct a pre-submittal scope review to determine exactly what your project requires.
What triggers a change of occupancy review?
A change of occupancy occurs when a space is used for a purpose that falls under a different building code occupancy classification than its current permitted use, per LABC Chapter 3. Common examples: converting office to restaurant (B to A-2), warehouse to office (S to B), or retail to childcare (M to E). Change of occupancy triggers a full review by LA City Planning, additional LAFD scrutiny, and often requires a new Certificate of Occupancy. We identify occupancy type at project outset — not after you've submitted drawings based on the wrong assumption.
Can you expedite a TI permit that's already stuck in plan check?
Yes. If a TI application is stalled in plan check — due to unanswered corrections, incomplete documentation, or a multi-agency clearance issue — we can step in at any stage. We review the pending corrections, develop responses, and resubmit. We've recovered projects that were in correction limbo for 6+ months within a few weeks of engagement.
How much does a Tenant Improvement permit cost in Los Angeles?
Government plan-check and permit fees for a TI are calculated by LADBS based on valuation and typically run $1,500–$6,000 for interior work; our expediting fees for a simple interior TI with no change of use range $1,800–$4,000, projects with MEP scope run $2,800–$6,000, restaurant or food-service conversions run $5,000–$12,000 or more, and change-of-occupancy projects requiring Planning review run $6,000–$15,000 or more, depending on the number of agencies involved.
Which LADBS division handles Tenant Improvement plan check?
Commercial TI plans route through LADBS Plan Check Engineering at the Metro, Valley, or West LA District Offices depending on the property's location. Projects triggering fire life-safety scope are reviewed concurrently by LAFD's Fire Prevention Bureau plan check unit. We identify which district office and reviewing bureau apply to your address before submittal.
Related Services
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