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Codes, exemptions & field inspections

Build to the adopted code. Verify every exception.

This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.

Regulatory framework

The code baseline for Unicoi County.

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.

Inspection lane

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.

Minor-work playbook

Understand what may be exempt—and what is not.

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.

Field rule

A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.

Inspection pipeline

Keep the work visible at every release point.

  1. 1

    Request with lead time

    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.

  2. 2

    Preserve access

    Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.

  3. 3

    Close the record

    Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.

Contractor verification

Verify the builder before the contract is signed.

Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.

Verify contractor ↗

Planning reference

Keep the parcel rules beside the building plans.

A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.

No verified planning reference link is listed; ask the agency for the parcel-specific source.

Source trail

Official sources for this profile

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.

Agency websiteOpen official source ↗Permit portalOpen official source ↗Fee scheduleOpen official source ↗Contractor license lookupOpen official source ↗

Project questions

Frequently asked questions for Unicoi County

Who handles permitting for this jurisdiction?

This record is marked State Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.

How should I begin an application?

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).

How long might review take?

N/A; Unicoi County and the state’s public materials do not publish a county-specific review timeline.

How are inspections scheduled?

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.

Which codes and exemptions should I review?

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.

Field sequencing matters

The inspector needs to see the work at the right moment.

Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.

When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.

Closeout file

Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.