Linn County, IA Building Setbacks & Zoning: Structure Height Limits (2026)
Key Facts
- Max height
- 35 feet
- District
- RR3 Rural Residential Three-Acre
- Exempt structures
- utilities, communication and wind towers
- Enforced by
- county zoning administrator
Summary
Unincorporated Linn County caps residential structures at 35 feet in the RR3 Rural Residential district, with taller allowances only for utilities and communication or wind towers.
Maximum height for all principal structures except utilities and communication or wind towers: 35 feet.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 16).
Full Breakdown
Linn County Code § 107-134(e)(4) sets a 35-foot maximum height for all principal structures in the RR3 Rural Residential Three-Acre District, the standard zoning for most rural residential lots outside the county's cities. Utilities, communication towers, and wind towers are exempt. The county's Agricultural district allows a taller 45-foot cap. This governs only unincorporated Linn County. Cedar Rapids, Marion, Hiawatha, and the county's other incorporated cities set their own height limits under separate municipal codes.
Violations & Fines
Building over the 35-foot cap without a variance risks a stop-work order, permit denial, or a removal order from the county zoning administrator.
Frequently Asked Questions
Does this height limit apply in Cedar Rapids?
Can a structure exceed 35 feet in RR3?
Sources & Official References
Other rules in Linn County
Compare Linn County to another location·View the Iowa building setbacks & zoning overview
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