Building Setbacks & Zoning in Boone County, IN (2026)
3 rules for unincorporated Boone County, Indiana.
Verified from official government sources
Setback Rules
Unincorporated Boone County's zoning ordinance sets a 20-foot minimum front yard and a 5-foot minimum side yard for single-family homes in nearly every zoning district, with a 20-foot rear yard for the primary structure but only 5 feet for accessory structures.
Yard Setback Minimums, Boone County
Some RestrictionsBoone County Code § 157.007(B), Table 3
Minimum front yard: 20 feet in all districts (not applicable: to flag lots). Minimum rear yard for primary structures: 20 feet in all districts. Minimum rear yard for accessory structures: 5 feet in all districts. Minimum side yard: 5 feet in all districts, except the Agricultural District. ... Minimum spacing between dwellings created in the Agricultural District: 140 feet.
Structure Height Limits
In unincorporated Boone County, Indiana, single-family homes are capped at 35 feet across every residential zoning district, from Agricultural to General Business. Code § 157.007(B), Table 3 sets that flat 35-foot ceiling, while § 157.026 exempts farm buildings and church steeples from any height cap.
Building Height Limits: Boone County, IN
Some RestrictionsBoone County Code § 10.99; § 157.007(B); § 157.026
Any person, firm or corporation who violates any provision of this code for which another penalty is not specifically provided shall, upon conviction, be subject to the following: (1) A fine not exceeding $2,500 for the first violation; and (2) A fine not exceeding $7,500 for second and subsequent violations, except for violations of ordinances regulating traffic and parking. ... Table 3, Resid...
Lot Coverage Limits
Boone County Code Section 157.007(B)'s single-family requirements table caps lot coverage at 50% in the Agricultural and Rural Equestrian districts, 60% in the R1 and R2 residential districts, and 70% in the R3, R4, and every business and commercial district listed, including LB, U5, GB and FS.
Boone County Maximum Lot Coverage Limits
Some RestrictionsBoone County Code §§ 157.007(B), 157.165(C)
AG RE R1 R2 R3 R4 LB U5 GB FS A5 ... Maximum lot 50% 50% 60% 60% 70% 70% 70% 70% 70% 70% 70% coverage ... (C) Zoning ordinance. Any person or corporation who shall violate any of the provisions of these ordinances or fail to fully comply therewith ... shall be subject to civil penalties of not more than $500 per day of violation.
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