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Pima County, AZ Building Setbacks & Zoning: Structure Height Limits (2026)

Some Restrictions

Verified 1 month ago|Source: Pima County Zoning Code Title 18 →

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Key Facts

Residential Max: 30 feet / 2 stories (most zones)
Rural Zones: Up to 35 feet
Airport Overlay: FAA Part 77 additional limits
Measurement: From natural grade to roof peak
Exceptions

City-specific rules exist: Oro Valley, Marana, Sahuarita, and Tucson have their own structure height limits rules that differ from Pima County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Summary

Pima County limits residential height to 30 feet (most zones) or 35 feet in rural zones. Airport Environs Zone overlay near TUS and Davis-Monthan AFB adds FAA Part 77 limits.

Full Breakdown

Pima County imposes building height limits through the Zoning Code (Title 18). Most residential zones cap structures at 30 feet or two stories, whichever is less. Some rural zones (GR-1, CR-3, CR-5) allow up to 35 feet due to larger lot sizes. The Airport Environs Zone (AEZ) overlay near TUS and Davis-Monthan AFB imposes additional FAA Part 77 height restrictions that may further limit building heights. Properties within hillside development zones face additional restrictions based on natural grade and slope percentage. Height is measured from natural or finished grade (whichever is lower) to the highest point of the roof. Chimneys, antennas, and mechanical equipment may extend up to 10 feet above the height limit. Height variances require Board of Adjustment approval.

Frequently Asked Questions

How tall can I build a house in unincorporated Pima County?

Most residential zones allow a maximum of 30 feet or two stories. Rural zones may allow up to 35 feet. Check your specific zoning district and any overlay zones with Pima County Development Services.

Are there extra height restrictions near the airport?

Yes. Properties within the Airport Environs Zone overlay near Tucson International Airport or Davis-Monthan AFB may face FAA Part 77 height restrictions that are more restrictive than standard zoning limits.

How does Pima County compare?

See how Pima County's structure height limits rules stack up against other locations.

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Pima County, AZ Building Setbacks & Zoning: Structure Height Limits (2026)

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