Everything you need to know before you start a backyard flock in Santa Rosa – the rules, the climate and the neighbors with teeth.

Thinking about starting a backyard flock in Santa Rosa? The Sonoma County seat welcomes hen keeping on residential lots city-wide with no permit needed, provided you keep your flock hen-only, size it to your lot, and follow the City's coop setback and design rules.
Yes – with conditions
Yes. The City of Santa Rosa allows the keeping of hens (female chickens) on any lot in a residential zoning district, or in conjunction with a residential use in other zoning districts, without requiring a permit as long as all standards are met (Zoning Code § 20-42.040).
Roosters are prohibited everywhere within city limits (§ 20-42.040.C.1). The number of hens allowed is scaled to lot size: 3 hens on lots of 5,000 sq ft or less; 6 hens on lots of 5,001–10,000 sq ft; 6 hens per 10,000 sq ft (up to 12) on lots of 10,001–43,560 sq ft; and 6 hens per 10,000 sq ft (up to 30) on lots over one acre.
The rules, straight from the municipal code.
Under Santa Rosa Zoning Code § 20-42.040(C), all hen keeping must comply with the following development standards:
Separately, up to 5 other small animals (not more than 3 dogs, not more than 1 pot-bellied pig) may also be kept per residential lot, and larger livestock (goats, ducks, pigs, etc.) is allowed only on Rural Residential lots of at least 20,000 sq ft, subject to its own per-acreage limits (§ 20-42.040.D).
Mediterranean (USDA Hardiness Zone 9a/9b, warm-summer Mediterranean climate)
Santa Rosa sits in Sonoma County's Mediterranean climate belt, with warm, dry summers (frequently reaching the 85-95°F range) and cool, wet winters where nighttime lows can dip into the high 30s–low 40s°F. Coops should prioritize summer shade and ventilation to prevent heat stress, while also offering a draft-free, dry roosting area for the rainy winter months.
Santa Rosa backs up to oak-woodland and forested hillsides, so backyard flocks share the neighborhood with raccoons, opossums, skunks, foxes, coyotes, and hawks. A fully enclosed, hardware-cloth-covered run and a secure, predator-proof coop are essential, especially since Santa Rosa's ordinance already requires hens to be kept in a securely fenced rear-yard enclosure.
Rhode Island Red, Plymouth Barred Rock, Orpington, Australorp, Easter Egger, Wyandotte
Our package comes with two Rhode Island Reds – hardy in heat and cold, and friendly with kids.
No. The City of Santa Rosa does not require a permit for hen keeping as long as you comply with all the standards in the Animal Keeping regulations (Zoning Code § 20-42.040), including lot-based hen limits, setbacks, and coop design requirements.
No. Roosters are explicitly prohibited under Santa Rosa's hen-keeping ordinance (§ 20-42.040.C.1), regardless of lot size or zoning district.
It depends on your lot size: up to 3 hens on lots of 5,000 sq ft or less, up to 6 hens on lots of 5,001–10,000 sq ft, 6 hens per 10,000 sq ft (max 12) on lots of 10,001 sq ft to one acre, and 6 hens per 10,000 sq ft (max 30) on lots over one acre.
For 6 or fewer hens, the coop must be set back at least 5 feet from side and rear property lines; for more than 6 hens, the setback increases to 10 feet. In all cases, the coop must also be at least 20 feet from any habitable structure on a neighboring property.
Hen keeping is allowed on any lot in a residential zoning district, and in conjunction with a residential use in other zoning districts, subject to the City's development standards for coop location, size, and maintenance.
City rules change, and this page is a summary rather than legal advice. Please confirm with Santa Rosa or your HOA before you order – and call us on (559) 321-7271 if you'd like a hand. Last checked August 3, 2026.
Everything arrives at your door – the coop, two Rhode Island Red hens, and all the gear in between.
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