Sumner County, TN Business Licensing & Operations: Auto Repair on Residential Property (2026)
Key Facts
- Minor home business status
- Auto/vehicle repair banned outright
- Major home business path
- Special Exception from Board of Zoning Appeals
- Business vehicle limit
- Two vehicles max, none in front yard
- Heavy vehicle limit
- 3+ axle vehicles barred under 5 acres
- Floor area cap
- No more than 25% of home's floor area
- Customer visit cap
- 10 visits/day, 5 people on-site at once
- Criminal penalty
- Misdemeanor, up to $50 per day
Summary
Sumner County bans automobile and vehicle repair as a by-right minor home-based business, but allows it in the unincorporated county only as a major home-based business approved by special exception from the Board of Zoning Appeals, capped at two business vehicles, three nonresident employees, and 25 percent of the home's floor area.
f. The following activities shall not be approved as minor home-based businesses: • Automobile/vehicle repair • Kennels, veterinarian clinics/hospitals • Medical and dental clinics/hospitals • Restaurants, clubs, drinking establishments • Undertaking and funeral parlors • Retail sales as defined in Appendix A, not including goods made on the premises • Adult Entertainment, as defined in Appendix A
Full Breakdown
Under Sumner County Zoning Resolution Sec. 2, home operators cannot run a vehicle repair shop as a "minor home-based business," the by-right category the Planning Director can permit in any residential district. f expressly lists "Automobile/vehicle repair" among the activities that "shall not be approved as minor home-based businesses," alongside kennels, medical clinics, restaurants, funeral parlors, retail sales, and adult entertainment. The only route is Sec. 2, "Special Conditions for Major Home-Based Businesses," which requires a Special Exception granted by the Board of Zoning Appeals under Chapter 14.
Major home-based businesses are capped at three nonresident employees on the premises at any one time, and parking/storage of business vehicles is limited to two, which cannot sit in the front yard or in the public right-of-way; vehicles with more than three axles are barred on lots under five acres. The business cannot use more than 25 percent of the principal structure's gross floor area, though an approved accessory structure can exceed the 500-square-foot cap that applies to minor businesses if the Board signs off.
No more than ten customer or client visits are allowed per day, with no more than five people on site at once, and outdoor storage of repair materials needs separate Board of Zoning Appeals approval. Signage is capped at five square feet on one sign per lot. These standards apply only in Sumner County's unincorporated planning region; Gallatin, Hendersonville, Portland, and White House enforce their own municipal codes for repair businesses inside city limits.
Violations & Fines
Operating a home auto-repair business without Board of Zoning Appeals approval violates the Resolution's Sec. 1413.D: the Director of Building & Codes can pursue a misdemeanor charge carrying a fine of up to $50 per offense, and each day the unauthorized repair business continues is a separate offense. Under Sec. 1413.E the Director, or a neighboring property owner who is specially damaged, may also seek civil remedies such as injunction, mandamus, or abatement. A granted special exception runs with the land, but the Board may set an expiration date and can revisit approval if the vehicle, employee, floor-area, or visit limits are exceeded.
Frequently Asked Questions
Can I legally run an auto repair shop from my Sumner County home?
How many vehicles can I keep on-site for a home repair business?
What happens if I operate without approval?
Does the special exception expire or transfer with a home sale?
Sources & Official References
Other rules in Sumner County
Compare Sumner County to another location·View the Tennessee business licensing & operations overview
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