Lot Coverage Limits: Green Valley vs Oro Valley
How do lot coverage limits rules compare between Green Valley, AZ and Oro Valley, AZ?
Green Valley and Oro Valley have similar restriction levels.
Green Valley, AZ
Pima County
Green Valley is unincorporated Pima County. Lot coverage is set by the Pima County Zoning Code (Title 18, Chapter 18.09 — General Residential and Rural Zoning Provisions). Each residential zone (CR-1, CR-2, CR-3, CR-4, CR-5, GR-1) has a specific maximum lot coverage; CR-1 (the most common Green Valley zone) typically allows around 40-50% lot coverage.
View full Green Valley rules →Oro Valley, AZ
Pima County
R-6 zones allow 40-45 percent lot coverage. Large-lot zones (R1-72, R1-144) cap at 25-35 percent. Pervious materials may reduce the calculation.
View full Oro Valley rules →Key Facts Comparison
| Fact | Green Valley | Oro Valley |
|---|---|---|
| Jurisdiction | Pima County (unincorporated) | - |
| Code Reference | Title 18 Ch. 18.09 | - |
| Typical CR-1 Coverage | 40-50% max | - |
| Variance Body | Pima County Board of Adjustment | - |
| R-6 Lot Coverage | - | 40-45 percent maximum |
| Large-Lot Zones | - | 25-35 percent maximum |
| Includes | - | Buildings, garages, patios, pools, impervious surfaces |
| Pervious Materials | - | May reduce coverage calculation |
| Verification | - | Checked during building permit review |
Highlighted rows indicate differences between cities.
Green Valley FAQ
What is the maximum lot coverage in Green Valley, AZ?
Green Valley follows Pima County's CR-1 / CR-2 zoning under Title 18 Chapter 18.09, typically allowing 40-50% lot coverage. Check your parcel's exact zone via PimaMaps GIS and consult Pima County Development Services for the precise number.
Do HOAs add lot coverage rules in Green Valley?
Yes. Many Green Valley HOAs (Green Valley Recreation, Quail Creek, etc.) impose CC&R limits stricter than Pima County's. Always check HOA architectural-review rules before building.
Oro Valley FAQ
Who enforces this in Oro Valley?
Oro Valley Code Compliance at (520) 229-4700.
Who enforces this in Oro Valley?
Oro Valley Code Compliance at (520) 229-4700 handles most complaints.
Compare other topics
See how Green Valley and Oro Valley compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool