Navajo County, AZ Building Setbacks & Zoning: Structure Height Limits (2026)
Key Facts
- R1-43/R1-10 height cap
- 30 feet, Section 503
- Multi-family R height cap
- 30 feet, Section 603
- Height exception trade-off
- 1 extra ft setback per extra ft height
- Public buildings/hospitals
- up to 60 ft, Section 1908
- Churches
- up to 75 ft
- Steeples/towers/chimneys
- up to 100 ft
Summary
A house in unincorporated Navajo County's R1-43 or R1-10 Single-Family District tops out at 30 feet under Section 503's Development Standards table, the same ceiling that applies in the Multi-Family R districts, while Section 1908 lets specific building features climb higher if the structure sets back an extra foot for every foot over the limit.
Section 503 – Development Standards R1-43 R1-10 ... Maximum Building Height (Feet) 30 30 ... Section 1908 – Additional Height Regulations For any of the below, the building shall be setback one additional foot for each foot of height that is in excess of the height limit of the Zoning District in which the parcel is located. Usage Public Buildings, Hospitals, Institutions Churches Chimneys, Church Steeples, Refrigeration Coolers, Ventilating Fans, Elevator Bulkheads, Fire Towers, Ornamental Tower/Spires, and Mechanical Appurtenances to Operate and Maintain Buildings Maximum Allowed Height (Feet) 60 75 100
Full Breakdown
Section 503 caps the Maximum Building Height at 30 feet in both the R1-43 and R1-10 Single-Family Residential Districts, a figure repeated in Section 603 for the Multi-Family R districts, so 30 feet functions as the county's standard residential ceiling regardless of lot size. Section 1908, Additional Height Regulations, allows specific building types to exceed that ceiling but ties every added foot of height to an added foot of setback: for any structure that qualifies, the building must be set back one additional foot for each foot of height that is in excess of the height limit of the Zoning District in which the parcel is located.
The section then sets absolute ceilings even with that trade-off: public buildings, hospitals and institutions may reach 60 feet; churches may reach 75 feet; and specific rooftop features such as chimneys, church steeples, refrigeration coolers, ventilating fans, elevator bulkheads, fire towers and ornamental towers or spires may reach 100 feet. A typical single-family home does not qualify for any of these exceptions, so 30 feet remains the practical ceiling for a house built in either Single-Family district.
Violations & Fines
A structure built above the Section 503 height limit without qualifying for a Section 1908 exception and its matching setback increase is a zoning violation. A Code Enforcement Officer or Building Inspector can cite it under Section 2103, and the Zoning Hearing Officer may order it reduced or assess civil penalties under Sections 2106 and 2107 pursuant to A.R.S. Sections 11-815 and 11-866.
Frequently Asked Questions
How tall can I build a house in unincorporated Navajo County?
Can any residential structure go higher than 30 feet?
Does a church or public building face the same 30-foot limit?
Sources & Official References
Other rules in Navajo County
Compare Navajo County to another location·View the Arizona building setbacks & zoning overview
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