Rutherford County, Tennessee - Building Codes Department

Rutherford County, Tennessee (unincorporated)

county

Murfreesboro, TN

Required

This office permits the unincorporated county only. The County's own permit page names Murfreesboro, Smyrna, La Vergne, Nolensville and Eagleville as issuing their own permits, so establish which jurisdiction an address falls in before applying anything here; this reference holds a separate record for Smyrna. TWO THINGS THIS RECORD DOES NOT ASSERT, AND WHY. The County does not publish the edition of the residential code it has adopted on any page reachable at the time of writing, and the only code link its building pages offer is an archived snapshot of the International Code Council's own website rather than an adopting instrument - so no adopted edition is stated here. Nor does it publish whether a re-roof requires a permit. Both are worth one call to the Building Codes Department before bidding, and neither should be inferred from a neighbouring jurisdiction: Smyrna, inside this county, exempts roof covering replacement from a permit where the deck and framing are untouched, while other Tennessee jurisdictions in this reference require one.

No Tennessee jurisdiction may permit more than two layers, and Rutherford County has not published anything that would make it stricter - but its own adopted edition could not be established, so no classification is asserted here. What can be said rests on state law rather than on a county document. The statewide minimum for one- and two-family dwellings is the 2018 International Residential Code, and Tenn. Comp. R. and Regs. 0780-02-23-.12(2) provides that "no city, county, town, municipal corporation, metropolitan government, or political subdivision of the State of Tennessee shall adopt or enforce any ordinance prescribing less stringent standards ... than those established hereunder" without the state fire marshal's written approval, and that a local government's adopted codes "shall be current within seven (7) years of the date of the latest edition published." Every edition of the residential code from 2018 onward bars a roof recover "where the existing roof has two or more applications of any type of roof covering," so whichever edition Rutherford County has adopted, one existing layer may be recovered and a second forces a tear-off - unless the County has gone stricter, which it is free to do. Confirm the adopted edition and any local amendment with the Building Codes Department before relying on this for an overlay.

9.75% in unincorporated Rutherford County - the 7% Tennessee state sales tax plus the 2.75% local tax levied by the county, which is the statutory maximum. Tennessee sets the state rate and lets each county or incorporated city levy its own local tax on top: the Department of Revenue states that "any county or incorporated city, by resolution or ordinance, may levy the local sales and use tax on the same privileges that are subject to the state's sales or use tax," and that "the local tax rate may not be higher than 2.75% and must be a multiple of .25." THAT CAP IS WHY A CITY RATE IS NOT ADDED TO ITS COUNTY RATE: several Tennessee cities levy the full 2.75% while sitting in a county that levies less, and stacking the two would exceed the statutory maximum. Where an incorporated city has its own rate, that rate is the local rate inside the city; where it has none, the county rate applies. The figures here are from the Department of Revenue's own machine-readable rate file for the third quarter of 2026, which the Department publishes for use in tax calculation applications. The rate here is the county rate, which applies in the unincorporated area this office permits and also in those Rutherford County municipalities that levy no separate city tax - Smyrna among them. Murfreesboro, La Vergne, Eagleville and Nolensville issue their own building permits rather than coming to the County, so a job inside any of those should be checked against that city rather than assumed to match this record.