Fees, valuation & enforcement
Permit fees are a project input. Enforcement exposure is a project risk. Use the official schedule where available, then confirm valuation, trade permits, plan review, and inspection charges with the Authority Having Jurisdiction.
Official fee pathway
The final charge may depend on declared construction value, occupancy classification, square footage, plan review, state surcharges, trade permits, technology fees, and inspection activity. Do not use a neighboring city’s fee table as a substitute for this jurisdiction.
Fee desk contact
423-743-9391 (Unicoi County Government); 423-672-8967 (state-listed Unicoi County residential inspector Shawn Jackson); 423-743-6231 (Town of Erwin); 423-743-7162 (Town of Unicoi)
Ask the counter to confirm current charges before submitting a project with multiple trades or a change of use.
Financial exposure
Plan for building, mechanical, plumbing, electrical, fire, energy, zoning, septic, right-of-way, or other reviews that the project scope triggers. The lowest initial permit fee is not always the lowest project cost.
Enforcement exposure
When work begins without authorization, the agency may halt the site, require corrective plans, impose additional fees, withhold inspection release, or require concealed work to be exposed for review.
Closeout exposure
A missing final inspection or certificate can complicate occupancy, refinancing, sale, insurance, and utility connection. Preserve the approved plans and signed inspection record through closeout.
Professional field note
Even when a cosmetic or minor project does not require a building permit, zoning, floodplain, shoreline, historic, utility, fire, or right-of-way controls may still apply. Confirm the full jurisdictional picture before work starts.
Source trail
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
This record is marked State Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 423-743-9391 (Unicoi County Government); 423-672-8967 (state-listed Unicoi County residential inspector Shawn Jackson); 423-743-6231 (Town of Erwin); 423-743-7162 (Town of Unicoi).
N/A; Unicoi County and the state’s public materials do not publish a county-specific review timeline.
For the optional State Fire Marshal route, obtain/service the permit and request inspections through https://core.tn.gov/ or email SFMO.permits-licensing@tn.gov with the permit number and ready date. The state list identifies Shawn Jackson as Unicoi County’s inspector at 423-672-8967. The county’s Planning and Development page lists the county office at 100 North Main Ave. #102, Erwin, for local planning questions.
Tennessee’s official residential-jurisdiction list identifies Unicoi County as OPT OUT and names Shawn Jackson as the state-listed inspector. The county’s public Planning and Development page does not identify a locally enforced 2026 building-code edition. The optional State Fire Marshal route uses the 2018 International Residential Code and 2018 International Energy Conservation Code with amendments. Municipal requirements in Erwin and the Town of Unicoi may differ. For unincorporated Unicoi County, the county is identified as OPT OUT of the state residential building-code program, so the state residential permit is not mandatory under that program; owners may request optional state inspections. State guidance generally exempts detached garages, sheds, barns, and other detached nonliving structures, and generally does not require a state permit for manufactured or modular installation unless custom site work is included. Confirm municipal exemptions with Erwin or Unicoi for property inside town limits.
Why permit costs vary
Building departments commonly calculate charges from valuation, occupancy, floor area, project type, plan review effort, trade scope, state surcharges, and inspection activity. A remodel that appears small on paper may still trigger structural, energy, fire, or utility review. Ask the permit counter which disciplines apply before you finalize the construction budget.
The same discipline applies to enforcement. Correcting unpermitted work after finishes are installed can require demolition, revised plans, additional inspections, and schedule disruption. Authorization is usually the less expensive project-management decision.