Building permits in Knoxville — East Tennessee's largest city and the Knox County seat — are issued by the Plans Review & Inspections Division, which promotes quality development and preserves neighborhood safety through plans review, permits, and building inspections.
This Knoxville building permit guide covers what requires a permit, how the Plans Review process works, the permits portal, fees, trade permits, and inspections — so your Knoxville project starts clean.
Knoxville and Knox County are separate permitting jurisdictions. The City of Knoxville's Plans Review & Inspections Division handles permits within city limits. Knox County Codes Administration (separate office) handles permits for unincorporated areas. Confirm which jurisdiction your parcel falls in before applying.
What requires a building permit in Knoxville?
Under the International Codes as adopted by the City of Knoxville, a permit is required before constructing, enlarging, altering, repairing, moving, demolishing, or changing the occupancy of most structures. Common triggers include:
Permit required
- New residential and commercial construction, additions
- Structural and load-bearing alterations
- Reroofing, windows, doors, and exterior changes
- Electrical service upgrades and most wiring work
- HVAC installations and changeouts
- Plumbing alterations, repipes, and water heaters
- Decks, pools, accessory structures, and signs
- Pre-manufactured home placement
Typically exempt
- Painting, flooring, cabinetry, and cosmetic work
- One-story detached accessory structure ≤ 200 sq ft
- Like-for-like fixture/device swaps by a licensed contractor
- Minor repairs not affecting structural or safety systems
Exemptions are narrow and scope-specific. When unsure, confirm with the building department before starting — see the penalty note below.
Get the permit issued before starting work. Building without one exposes the owner to penalties and stop-work orders. Note that exemption from a building permit does not exempt a project from zoning requirements — confirm edge cases with the building department.
Who handles permitting in Knoxville?
Permitting, plan review, and inspections run through the City of Knoxville's Plans Review & Inspections Division. Applications can be submitted through the permits.knoxvilletn.gov citizen access portal.
| Detail | Information |
|---|---|
| Office | Plans Review & Inspections — City County Building, 400 Main St, Suite 547, Knoxville, TN 37902 |
| Phone | (865) 215-4558 |
| Online portal | permits.knoxvilletn.gov (citizen access) |
| Covers | City of Knoxville only |
| Knox County | Knox County Codes Administration handles unincorporated areas — (865) 215-2325 |
| Hours | Monday–Friday, 8:00 AM – 4:30 PM |
Apply through the Knoxville permits portal. Some permit types require a citizen access account. Visit permits.knoxvilletn.gov to register, submit applications, and schedule inspections.
Knoxville building permit cost
Knoxville building permit fees are valuation-based and set by the city fee schedule. Separate trade permit fees apply for electrical, plumbing, mechanical, and gas work. Confirm current amounts with Plans Review & Inspections before budgeting.
| Fee component | How it works |
|---|---|
| Building permit fee | Valuation-based per city fee schedule |
| Plan review fee | Percentage of permit fee |
| Trade permits (E / P / M / Gas) | Separate fee per trade |
| Sign permit | Separate application and fee |
| Demolition permit | Flat fee per schedule |
| Work-without-permit | Double fees + enforcement action |
Want a precise number for a specific Knoxville project? Send us the scope and valuation and we'll return a fee estimate alongside a filing timeline.
Knoxville trade permits
Electrical, plumbing, mechanical, and gas permits are filed separately. Each requires a Tennessee-licensed trade contractor.
Electrical permits
Required for service upgrades, panel work, solar PV, and most wiring — performed by a TN-licensed electrical contractor.
Plumbing permits
Required for new plumbing, repipes, water heaters, and gas piping — performed by a TN-licensed plumber.
Mechanical (HVAC) permits
Required for HVAC installations, changeouts, ductwork, and refrigeration — performed by a TN-licensed mechanical contractor.
Miscellaneous & specialty
Reroofs, decks, pools, accessory structures, signs, and pre-manufactured home placements are permitted separately. Downtown and historic-overlay projects may require additional H-1 overlay review.
Verify your contractor's license. Tennessee requires a state contractor license issued by the Tennessee Board for Licensing Contractors (under the Department of Commerce & Insurance / TDCI) for projects valued at $25,000 or more. Separate trade licenses are required for electrical (CE), plumbing, and HVAC/mechanical work. Homeowners may pull their own permit for personal-use construction once every 24 months under TCA § 62-6-103 — but the project must still meet all code and inspection requirements. Verify licensure at tn.gov/commerce/regboards/contractors.
How to get a building permit in Knoxville
Confirm jurisdiction & zoning
Verify the parcel is within Knoxville city limits (not unincorporated Knox County). Confirm zoning compliance.
Register & submit application
Create an account at permits.knoxvilletn.gov and submit your permit application with project details.
Upload plans & documents
Upload construction plans, site plans, and required documentation. Commercial projects need TN-sealed drawings.
Plan review & corrections
Plans Review division reviews against adopted codes. Address correction comments and resubmit as needed.
Pay fees & pull the permit
Pay calculated fees. Post the permit card and approved plans on site.
Schedule inspections through CO
Request inspections through the portal. Clear footing, framing, rough-in, insulation, and final for your Certificate of Occupancy.
Inspections in Knoxville
Schedule inspections through the permits portal or by phone at (865) 215-4558. Typical checkpoints include footing/foundation, framing, rough-in MEP, insulation, and final. Post the permit and approved plans on site. Address all correction notices before re-inspection; a final inspection and CO are required before occupancy.
Address correction notices before requesting a re-inspection; a final inspection and Certificate of Occupancy are required before legal occupancy or use.
Official Knoxville permitting resources
- 🏛️ Knoxville Plans Review & Inspections portal
- 📋 Permit types & applications
- 📘 Adopted construction codes
- 🏢 Knox County Codes Administration
- 🪪 TN Board for Licensing Contractors
- 🔥 TN State Fire Marshal
Simplify Knoxville permitting with Alliance Permitting
Knoxville's Plans Review division, city/county jurisdictional split, and downtown overlay requirements reward applicants who confirm jurisdiction upfront and submit complete packages. Alliance Permitting is a permit expediter for Knoxville — our permit expediting services pair AI-driven document review with experts who know the Plans Review & Inspections process, so your Knoxville submissions move faster.
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Contractors and builders choose Alliance for Knoxville because we deliver:
- Local expertise — we know the Plans Review & Inspections division, the permits portal, and the city/county jurisdictional boundaries.
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Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the building department through issuance — including preparing private-provider documentation where that option is available. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
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More Tennessee permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, and processes change; always confirm current details with the City of Knoxville Plans Review & Inspections Division before filing. This is not legal advice.