Tiny Homes in Carter County, Tennessee

A specific, numeric tiny-home ordinance -- not a gap in the code

The Carter County Regional Planning Commission studied a tiny-home zoning proposal at its November 22, 2022 meeting and recommended the County Commission formally amend the zoning resolution to address the use. The County Commission followed through, and local reporting from the Elizabethton Star confirmed in January 2023 that the county had passed tiny-home regulations -- a genuinely concrete, dated example of a Tennessee county writing specific rules for a housing type its zoning code previously had nothing to say about, rather than leaving buyers and builders to guess how an existing single-family or manufactured-home category might apply.

The ordinance defines a tiny home narrowly and specifically: a single-family dwelling that is not less than 200 square feet nor more than 400 square feet. That's a genuinely tight range -- it rules out both a very small "micro-cabin" under 200 square feet and anything larger that some builders elsewhere market as a "tiny home" but that would actually exceed 400 square feet. If you're planning to place a tiny home on land in Carter County, the very first question is whether the specific model or build you're considering actually falls within that 200-to-400-square-foot window.

Construction, utility, and code requirements

Beyond size, Carter County's rules impose the same fundamental construction standards the county applies to conventional housing. The structure must be either site-built or prefabricated, and it must be permanently anchored to a foundation -- a tiny home resting on blocks or a temporary base doesn't qualify. It must have permanent utility connections, including a sewage system approved by the Tennessee Department of Environment and Conservation, meaning the same TDEC Rule 0400-48-01 septic framework (or an available public sewer connection) that governs any other new home in the county applies here too; a tiny home isn't exempt from ordinary septic permitting. The structure must also meet the current International Residential Code and current National Electrical Code, the same baseline life-safety and electrical standards conventional new construction has to meet.

On placement, the ordinance specifically bars tiny homes from the R-1 low-density residential zoning district -- if your target parcel sits in R-1, a tiny home isn't a permitted use there regardless of size, foundation, or utility connections, and you'd need to look at a different district or pursue a variance through the Board of Zoning Appeals. And the ordinance draws a hard line against mobility: a tiny home cannot be movable or built on a wheeled chassis, and the rule explicitly excludes a "tiny house on wheels," a manufactured home, a recreational vehicle, a shipping container, and a trailer from qualifying as a tiny home under this ordinance. If what you're picturing is a wheeled tiny house you can tow, that's a fundamentally different regulatory category here (likely governed by the county's RV or manufactured-home rules, not this ordinance) -- confirm which category actually applies before you buy or build.

What to verify before buying land for a tiny home in Carter County

• That the specific structure you plan to place falls within the 200-to-400-square-foot range the ordinance requires -- both the floor and the ceiling matter.
• That the target parcel's zoning district isn't R-1 (low-density residential), where tiny homes are not a permitted use under this ordinance.
• That the structure will be permanently anchored to a foundation, not resting on a temporary base or a wheeled chassis -- a wheeled unit doesn't qualify as a tiny home under this rule regardless of its size.
• That the parcel has, or can obtain, a TDEC-approved septic system (or public sewer connection) sized appropriately -- the same site-evaluation and permitting sequence any new home in Carter County has to go through.
• That the build meets current IRC and NEC standards, which will come up during the county's standard residential building-permit review.
• Whether the current ordinance text has been amended since this January 2023 reporting -- confirm directly with the Carter County Planning Office before finalizing plans.