Official sources checked August 30, 2026

Sevier County, Tennessee septic permits and requirements

Tennessee contract-county framework

TDEC’s current septic-services page identifies Davidson, Knox, and Sevier among the jurisdictions that provide their own groundwater-protection services. SepticScope therefore follows the local metropolitan or county process below instead of substituting the standard TDEC field-office workflow used in most Tennessee counties.

Sevier County runs the local septic application process

TDEC identifies Sevier as a contract county, and Sevier County Environmental Health publishes the local septic permit, repair permit, site evaluation, inspection letter, subdivision evaluation, installer/pumper resources, and property-information process. Applicants should use this county workflow rather than the ordinary TDEC online application used in non-contract counties.

The county accepts several applications online

Sevier County states that septic permit, repair permit, well-water test, inspection-letter, and site-evaluation applications may be submitted through its online application system. The county notes that processing does not begin until payment and all required material are received; subdivision and large-conventional-system services continue to use the county’s other filing procedures.

Certain subdivisions require a current survey

Sevier County specifically requires current surveys for applications in Shagbark, Sky Harbor, and English Mountain. The county states that those surveys must be original surveyor prints at 1 inch = 50 feet or 1 inch = 100 feet, and an inspector may request a survey elsewhere when lot lines are uncertain or the property has not been surveyed recently.

Failed final inspections trigger a county reinspection process

Effective June 1, 2024, Sevier County requires a reinspection application and a $100 reinspection fee after a septic final inspection fails the initial inspection. The installer must correct the cited issue and then follow the county process to schedule the return inspection.

The county publishes current project-specific septic fees

Sevier County’s Environmental Health page currently lists a $300 septic permit, $75 repair permit, $100 inspection letter, and subdivision evaluation fees, while also linking its current fee schedule. Because fees can change, applicants should confirm the posted schedule when filing.

One- and two-bedroom homes have published minimum home-size criteria

Sevier County publishes an effective August 14, 2023 local notice stating minimum home sizes of 1,200 square feet for a one-bedroom home and 1,500 square feet for a two-bedroom home in the cited septic guidance. Property owners planning a small dwelling should confirm the current applicability of that county criterion before finalizing plans.

Official sources

• TDEC — local/contract county septic-services routing
• TDEC — Septic System Construction Permit
• TDEC — licensed septic installers and pumpers
• Sevier County — Environmental Health

SepticScope summarizes public-agency information for planning purposes. The permitting agency's current instructions control if they differ from this guide.