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Sullivan County, TN Building Setbacks & Zoning: Structure Height Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Max height, all districts
3 stories or 50 feet
Can be exceeded if
Local fire dept. approves
Exempt features
Spires, towers, chimneys, water tanks
Also exempt
Unoccupied agricultural buildings
Governing table
Table 3-103B, row V

Summary

Sullivan County caps residential buildings at 3 stories or 50 feet across every agricultural and residential district on Table 3-103B, unless the local fire department approves greater height. Non-occupied features like spires, towers, chimneys and water tanks, plus unoccupied farm buildings, are exempt from the limit entirely.

These county ordinances apply to unincorporated areas of Sullivan County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

3-103.5 Height Regulations 1. Basic Requirements - The maximum permitted height for buildings shall not, except as provided in Subpart 2, of this section, exceed that set forth for the various districts in TABLE 3-103B. 2. General Exception to Height Regulations - The height limitation contained in the district regulations does not apply to spires, belfries, cupolas, radio towers, telecommunication towers, water tanks, ventilators, chimneys, or other appurtenances usually required to be placed above the roof level and not intended for human occupancy. Nor does this provision apply to barns, or other buildings and structures utilized for agricultural purposes and not intended for human occupancy. ... V. Maximum Height for Residential Structures* (unless approved by the local fire department to be higher) 3 stories or 50 feet

Full Breakdown

' That table's row V sets the same figure county-wide: '3 stories or 50 feet' for residential structures, 'unless approved by the local fire department to be higher,' meaning an applicant who wants a taller home or accessory structure needs fire-department sign-off before the Building Commissioner will issue a permit, not just a variance from the Board of Zoning Appeals. 5(2), the 'General Exception to Height Regulations,' removes the cap entirely for 'spires, belfries, cupolas, radio towers, telecommunication towers, water tanks, ventilators, chimneys, or other appurtenances usually required to be placed above the roof level and not intended for human occupancy,' and separately exempts 'barns, or other buildings and structures utilized for agricultural purposes and not intended for human occupancy,' reinforcing the resolution's broader pattern of leaving working farm buildings outside its bulk regulations.

Because the 3-story/50-foot figure appears identically for every column in Table 3-103B, from A-5 down through the R-3 manufactured home park district, height is one of the few bulk standards in the resolution that does not vary by zoning district.

Violations & Fines

Constructing a residential structure taller than 3 stories or 50 feet without the required fire-department approval is a zoning violation. Section 12-107.2 makes the violation a misdemeanor, treating each day of noncompliance as a separate offense with a civil penalty up to $500, and Section 12-107.3 allows the Building Commissioner or a damaged adjoining owner to seek an injunction or other court remedy to correct the violation.

Frequently Asked Questions

How tall can I build a house in Sullivan County?
Three stories or 50 feet, whichever standard applies, and that ceiling is the same across every agricultural and residential district on Table 3-103B, from A-5 down to the R-3 manufactured home park district. Section 3-103.5(1) ties every district's limit back to that same table.
Can I build higher than 50 feet?
Only with sign-off from the local fire department. Table 3-103B's height row is capped 'unless approved by the local fire department to be higher,' so an applicant who needs additional height has to secure that approval before the Building Commissioner will issue the permit.
Does the height limit apply to chimneys or a water tower?
No. Section 3-103.5(2) exempts 'spires, belfries, cupolas, radio towers, telecommunication towers, water tanks, ventilators, chimneys, or other appurtenances' that sit above the roofline and aren't meant for human occupancy, and separately exempts barns and other unoccupied agricultural buildings from the district height cap entirely.

Sources & Official References

Other rules in Sullivan County

All Sullivan County rules

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