Murfreesboro, TN Building Safety: Building Permits (2026)
Key Facts
- Side setback
- 5 feet minimum
- Overhang exception
- 12 inches with fire rating
- Structure spacing
- 10 feet between buildings
- Code basis
- Amended IRC Section R302.1
Summary
Decks, fireplaces, and roof overhangs built onto a Murfreesboro home can't sit within 5 feet of a side lot line under the city's amended residential code, with a narrow overhang exception.
"Section 302.1 Exterior Walls. Exterior walls and their projections, including fire places, decks, and roof overhangs shall not be within 5 feet (1524 mm) of a side lot line, except that a soffit or overhang may extend 12 inches (305 mm) into the 5-foot setback if the overhang has a minimum fire-resistance rating of 1 hour on the underside or fire blocking is installed between rafters."
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 18 Update 1).
Full Breakdown
Murfreesboro rewrote IRC Section R302.1 on exterior walls to set a flat side-yard buffer: exterior walls and their projections, including fireplaces, decks, and roof overhangs, must stay at least 5 feet from a side lot line. The only carve-out is a soffit or overhang that extends up to 12 inches into that 5-foot setback, and only if it carries a 1-hour fire-resistance rating on the underside or has fire blocking installed between the rafters. Single-family homes, townhomes, duplexes, and zero-lot-line structures must also keep exterior walls at least 10 feet from other structures on the same lot. The Building and Codes Department checks this at permit review.
Violations & Fines
Building a deck, patio structure, or addition that violates the 5-foot side-lot-line setback is enforced as a Code violation under Section 7-4, punishable by a fine up to $50.00 per day the violation continues.
Frequently Asked Questions
How close to my property line can I build a deck in Murfreesboro?
Can any part of a deck cross into the 5-foot setback?
Sources & Official References
Other rules in Murfreesboro
Compare Murfreesboro to another location·View the Tennessee building safety overview
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