Digital permit application gateway
Start with the issuing authority’s own submission lane. A complete application package, accurate valuation, and accessible inspection path are the fastest route through statutory plan review.
Recommended first click
Use the official digital gateway to submit plans, monitor review comments, pay required charges, and request inspections when the permit is issued. If the link is unavailable, use the agency website or phone number on the administrative profile to confirm the current lane.
Typical review lane
N/A; no county review timeline was published.
Treat this as a planning signal, not a guaranteed approval date. Completeness, corrections, resubmittals, and agency workload control the actual clock.
Verify the parcel is inside this agency’s service area and note whether a city, state, fire marshal, septic authority, or utility district also has approval authority.
Prepare legible plans, site information, project valuation, ownership authorization, contractor information, and any energy, floodplain, zoning, or utility documentation the issuing office requires.
Keep the permit number, approved plan set, correction comments, fee receipts, and inspection results together. Those records establish the compliance trail for the next trade.
Application documents
Before submission, call Union County Assessor 865-992-3211; Tennessee State Residential Building Code Enforcement 615-741-7170 if the project involves a change of occupancy, structural alteration, accessory structure, demolition, or work near a regulated environmental feature.
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 Union County Assessor 865-992-3211; Tennessee State Residential Building Code Enforcement 615-741-7170.
N/A; no county review timeline was published.
Purchase the applicable permit in person at the Union County Assessor's office. When the state residential program applies, request inspections through https://core.tn.gov or email SFMO.permits-licensing@tn.gov with the complete permit number and requested inspection date. Septic permits are handled through TDEC; the county directs applicants to the Knoxville Field Office at 865-594-6035 or TDEC's online septic service.
Union County's official Assessor page directs applicants to Tennessee State Building Codes and confirms the county sells building permits. For the state residential program, Tennessee identifies the 2018 International Residential Code and 2018 International Energy Conservation Code; electrical permits and inspections are handled through the state system. Confirm any municipal code requirements inside Luttrell, Maynardville, or Plainview. Under Tennessee's state residential program, additions over 30 square feet to existing homes require a permit; detached garages, sheds, barns, and other detached structures not used for living generally do not require a state residential building permit; manufactured or modular-home installation itself generally does not require one, but custom site work such as a deck, patio, or stoop may. Union County's in-person permit requirement still applies to covered new construction; confirm exemptions with the Assessor or state program before work begins.
What makes an application complete
Before you click submit, make sure the drawings agree with the site plan, project description, valuation, ownership authorization, and contractor information. If the work changes structure, occupancy, drainage, fire protection, energy performance, or utility demand, describe that scope plainly. Ambiguous narratives create correction cycles and delay the field schedule.
Save the confirmation number, payment receipt, uploaded plan set, and every correction comment. Those records are the backbone of a defensible compliance file when multiple trades or agencies share responsibility.
Submission quality check
Site: address, parcel, access, setbacks, and existing conditions are consistent.
Scope: structural, mechanical, plumbing, electrical, fire, and energy work is identified.
Closeout: inspection contacts and the final approval path are understood before work begins.