Why Phoenix Is So Permissive
Phoenix's high chicken limit reflects the city's agricultural heritage — the Phoenix metro was a major farming area well into the 20th century, and the zoning code's livestock provisions have roots in that era. The city has updated the code to prohibit roosters in residential zones and to impose enclosure standards, but the basic flock limit remained high through successive revisions.
Phoenix Code § 8-14 governs "Domestic Fowl and Rabbits" in residential zones. The 20-hen limit applies to all single-family residential lots within Phoenix city limits, regardless of lot size.
Enclosure Requirements
While no permit is required, Phoenix's enclosure standards are specific:
- All fowl must be kept in a secure, covered enclosure at all times — no unsupervised free-ranging
- Enclosure must be kept clean and free of offensive odors
- Feed must be stored in sealed containers
- Enclosures must be maintained to prevent rodent harborage
- No specific setback distance specified, but general nuisance standards apply
Phoenix vs. Scottsdale
Phoenix's 20-hen limit contrasts sharply with its neighbor Scottsdale, which has a 6-hen limit and a permit requirement. If your property is near the Phoenix-Scottsdale boundary, confirm your jurisdiction using the Maricopa County Assessor's parcel map before relying on Phoenix's permissive rules.
Heat and Chicken-Keeping in Phoenix
Phoenix's extreme summer heat (regularly 110°F+) creates chicken welfare challenges not present in most other cities. Adequate shade, constant cool water, and ventilated coop design are essential. The city's enclosure standards don't specify heat mitigation requirements, but animal welfare complaints related to heat distress are actionable under general animal cruelty provisions. Plan your coop design for summer conditions.