Structure Height Limits: Green Valley vs Sahuarita
How do structure height limits rules compare between Green Valley, AZ and Sahuarita, AZ?
Green Valley and Sahuarita have similar restriction levels.
Green Valley, AZ
Pima County
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.
View full Green Valley rules →Sahuarita, AZ
Pima County
Sahuarita limits residential building height through its zoning code Chapter 18.12, with most residential zones capped at 30 feet or two stories for primary structures, whichever measurement is more restrictive. Accessory dwelling units that extend beyond the main house setback envelope are limited to 16 feet in height under Table 18.12-5 of the code, while ADUs within the main house setback area may match the primary structure height. Structures housing poultry or small animals are further restricted to 8 feet maximum height and must be shorter than the property fence line on lots under one acre. The general regulations in Chapter 18.07 provide limited exceptions for chimneys, antenna structures, and rooftop mechanical equipment that may project above the height limit by specified amounts.
View full Sahuarita rules →Key Facts Comparison
| Fact | Green Valley | Sahuarita |
|---|---|---|
| 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 | Chimneys/antennas +10 ft | - |
| Residential Maximum | - | 30 feet / 2 stories |
| ADU (past main setback) | - | 16 feet maximum |
| Animal Structures | - | 8 feet / 200 sq ft max |
| Code Reference | - | Ch. 18.12, Table 18.12-5 |
Highlighted rows indicate differences between cities.
Green Valley FAQ
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.
Sahuarita FAQ
Can I build a three-story home in Sahuarita?
No. Standard residential zones limit buildings to 30 feet or two stories, whichever is more restrictive. Three-story construction would require a variance or rezoning, which is unlikely to be granted in established residential areas given the low-profile character of Sahuarita neighborhoods.
Does my ADU have to be shorter than my house?
It depends on placement. An ADU built within the same setback envelope as your main house can match its height up to 30 feet. If the ADU extends past the main house setback line into the reduced ADU setback area, it is limited to 16 feet maximum height per Table 18.12-5.
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