Fast Tenant Improvement Permit Services Nationwide
Building departments won't approve a commercial buildout without a compliant, stamped tenant improvement (TI) permit set. Unified Studio Architect provides licensed tenant improvement permit services for office, retail, restaurant, medical, and industrial spaces nationwide — covering architectural, structural, MEP coordination, ADA compliance, and occupancy approval in a single reviewed and sealed drawing set. Our licensed architects and engineers prepare and stamp TI permit drawings that satisfy building department review the first time, with most projects turned around in 5–10 business days.
Get Your TI Permit Stamped → Nationwide coverage. Licensed architects & engineers. Building, fire & ADA compliant. Fast turnaround.What Is a Tenant Improvement Permit?
Definition: A tenant improvement permit is an official authorization confirming that interior buildout work — partitions, MEP systems, finishes, and accessibility upgrades — complies with building code, fire code, and ADA requirements, required before construction begins in leased or newly occupied commercial space.
Approval Categories We File Against
| Approval Type | Review Elements | Compliance Target |
|---|---|---|
| Building Department | Partition layout, occupancy classification, occupant load, construction type | Local building code and state-specific amendments |
| MEP (Mechanical/Electrical/Plumbing) | HVAC modifications, electrical load, plumbing fixture counts | Mechanical, electrical, and plumbing code compliance |
| Fire Department | Egress path changes, fire-rated separations, sprinkler/alarm modifications | NFPA 101, NFPA 13, and local fire marshal amendments |
| ADA Compliance | Accessible routes, restroom upgrades, door clearances, counter heights | ADA Standards for Accessible Design |
Why Tenant Improvements Require a Permit
Quick answer: Tenant improvements require a permit because building departments must verify that interior partition changes, MEP modifications, and accessibility upgrades still meet code — even inside an already-approved building shell.
- New partition layouts don't compromise occupant load, egress width, or travel distance.
- MEP modifications meet mechanical, electrical, and plumbing code for the new use.
- Fire-rated separations and sprinkler/alarm coverage are updated for the new layout.
- ADA-required accessible routes, restrooms, and clearances are met or upgraded.
- The space passes final inspection before the new tenant occupies it.
100% Refund Upon Non-Completion
Tenant Improvement Permit Services by Space Type
Office Buildouts
Requires partition layout review, occupant load recalculation by department/desk layout, and corridor/egress verification for the new configuration.
Retail Buildouts
Requires ADA-compliant aisle widths and checkout clearances, storefront/signage coordination, and occupant load posting for the new layout.
Restaurant / Food Service Fit-Outs
Requires kitchen equipment and ventilation coordination, grease trap and hood suppression review, and health department alignment alongside the building permit.
Medical & Dental Offices
Requires accessible route documentation, corridor width verification for wheelchair/stretcher clearance, and code provisions specific to Group B or I-2 classifications.
Industrial & Warehouse Buildouts
Requires office/mezzanine insertion review within existing shells, egress verification across large floor plates, and coordination with existing sprinkler design.
Shell-to-Suite Conversions
Requires full first-generation interior buildout review — MEP rough-in, partition layout, fire protection extension, and full ADA compliance from a cold shell.
State-Specific Tenant Improvement Requirements
| State | Permit Trigger | Local Factor |
|---|---|---|
| Texas | Any interior buildout, partition change, or change of use | City-by-city building department review (Houston, Dallas, Austin, San Antonio) |
| Florida | Nearly all commercial interior buildouts | Florida Building Code layered with county-level fire marshal review |
| Georgia | Office, retail, and restaurant buildouts | Georgia State Fire Marshal amendments on egress and separation |
| California | All commercial TI permits | California Building Code (Title 24) adds stricter accessibility and energy requirements (Title 24 Part 6) |
| Maryland | Commercial buildouts and change of use | County fire marshal pre-review required in most jurisdictions |
| Virginia | Most commercial interior buildouts | Statewide Fire Prevention Code with local fire marshal sign-off |
| Illinois | Office, retail, and restaurant TI permits | Chicago Building Code adds separate submission and review requirements |
| New York | Nearly all TI permit filings | NYC DOB and FDNY both review independently via DOB NOW |
| New Jersey | Commercial buildouts, restaurants, retail | Uniform Construction Code enforced alongside Uniform Fire Code |
| North Carolina | Commercial and office buildouts | County-level fire marshal review in addition to state building code |
| Washington DC | Most commercial interior buildouts | DCRA and DC Fire & EMS conduct independent review |
Counties and Cities We Serve
Harris, Dallas, Travis, Bexar, Tarrant Counties (TX). Miami-Dade, Broward, Orange, Hillsborough, Palm Beach Counties (FL).
Fulton, Gwinnett, Cobb, DeKalb, Cherokee Counties (GA). Montgomery, Prince George's, Anne Arundel, Baltimore, Howard Counties (MD).
Fairfax, Loudoun, Prince William, Arlington, Chesterfield Counties (VA). Los Angeles, San Diego, Orange, Santa Clara, Alameda Counties (CA).
Common Tenant Improvement Permit Rejection Reasons
Featured snippet answer: The most common tenant improvement permit rejection reasons are incorrect occupant load recalculation, inadequate egress after partition changes, incomplete ADA upgrade documentation, missing MEP coordination, and mismatched information across drawing sheets.
Failing to update occupant load and egress calculations after new partitions or layout changes.
New partition layouts blocking or narrowing required egress paths without updated travel distance calculations.
Missing accessible route, restroom, or clearance upgrades required when a permit is pulled for space with existing ADA deficiencies.
HVAC, electrical, or plumbing modifications not properly coordinated with the architectural drawing set.
Partition or door changes affecting fire-rated separations not clearly labeled with updated ratings.
Discrepancies in occupant loads, room names, or square footage figures across architectural, MEP, and fire protection drawings.
Why Choose Unified Studio Architect for Tenant Improvement Permitting?
Licensed, Code-Focused Review
Every TI permit set is reviewed and stamped by an architect or engineer licensed in your project's state, with active credentials verifiable through the state licensing board.
Multi-Discipline Coordination in One Pass
We coordinate architectural, MEP, fire, and ADA compliance together, rather than treating them as separate, disconnected review cycles.
Space-Specific Expertise
From restaurant kitchen coordination to medical office accessibility upgrades, our team understands the unique code triggers for each tenant type.
Fast Turnaround
Most TI permit projects are completed in 5–10 business days, with expedited options available for tight lease or opening deadlines.
Local Building Department Fluency
We actively track city- and county-specific code amendments and submission requirements across major U.S. metros.
Digital & Wet-Stamp Delivery
TI drawing sets are delivered as digital seals for e-permitting portals, with wet-stamped physical copies available where required.