Linn County, IA Building Setbacks & Zoning: Lot Coverage Limits (2026)

Detached structures in the following zoning districts shall not exceed the size limitations/maximum lot coverage allowances shown in Table 107-94(c)(2): RR1 rural residential one-acre, RR2 rural residential two-acre, RR3 rural residential three-acre, USR urban services residential, USR-MF urban services residential multi-family, VR village residential and VM village mixed-use zoning districts.

Table 107-94 Detached Accessory Structure Limitations Lot Size in Acres Maximum Lot Coverage and/or Structure Footprint .5 acres or less

15% lot coverage (sq. ft.) .501 to 2.99 acres 10% lot coverage (sq. ft.) or 3,200 sq. ft. whichever is greater, no individual structure exceeds 5,000 sq. ft. 3 acres or greater No specified limitation, provided no individual structure exceeds 5,000 sq. ft. b.Setbacks. For detached accessory structures in AG agricultural, CNR critical natural resources, and residential zoning districts RR1, RR2, RR3, USR, USR-MF and VR, and for agricultural and residential uses in the VM district: 1.Maintain corner side yard setback requirements. 2.Maintain ten feet to any side lot line when the accessory structure is located beside the principal structure; when located behind the principal structure the setback may be reduced to no less than three feet from any side or rear lot line with any overhang not closer than one foot from the lot line.