Seattle, WA Right to Farm: Agricultural Zoning Protection (2026)
Key Facts
- Sales hours
- 7 a.m.–7 p.m. daily
- Deliveries
- 1 commercial delivery/pickup per day
- Vehicles
- Max 2, each ≤10,000 lbs GVW
- Off-site planting
- Within 800 ft of principal use
- Sign
- 1 sign, max 64 sq in
- Structures (no principal bldg)
- 1,000 sq ft total, 12 ft height
Summary
Seattle treats urban farming as a protected accessory use in every residential zone under SMC 23.42.051, letting a household grow and sell produce on site as long as retail hours run 7 a.m. to 7 p.m., deliveries are capped at one per day, and no more than two 10,000-pound vehicles support the operation.
A.All Urban Farms in Residential Zones. In all residential zones all urban farms are subject to the following provisions:1.Mechanical equipment. Only mechanical equipment designed for household use may be used.2.Sales. Retail sales and all other public use of the farm shall begin no earlier than 7:00 a.m. and end by 7:00 p.m. every day of the week.3.Deliveries. Commercial deliveries and pickups are limited to one per day. On-site sales are not considered commercial pickups.4.Motor vehicles. No more than two motor vehicles, each with a gross vehicle weight of 10,000 pounds or less, may be used for farm operations.5.Location. The farm shall be located on the same lot as the principal use to which it is accessory or on a lot where the planting area is within 800 feet of the lot where the principal use is located.6.Signs. One identification sign is permitted, not exceeding 64 square inches in area.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Municipal Code: Supplement 44 Update 1).
Full Breakdown
051 gives urban farms a standing right to operate in every residential zone as an accessory use, without needing the property to carry an agricultural zoning designation the way a rural jurisdiction might require. , commercial deliveries and pickups are limited to one per day (on-site sales to customers don't count against that cap), and no more than two motor vehicles of 10,000 pounds gross weight or less may support the farm. The planting area itself must sit on the same lot as the principal use it's accessory to, or, if it doesn't, it can be no more than 800 feet away, letting a household farm a separate nearby lot without triggering a rezone.
One identification sign is allowed, capped at just 64 square inches, far smaller than the 5-square-foot allowance for a home occupation sign. If there's no principal structure on the lot, farm buildings are capped at 1,000 square feet of combined floor area and 12 feet in height including any pitched roof. Larger or higher-impact urban farms don't lose their by-right status outright, but they trigger a conditional use permit reviewed against water-quality, traffic, visual-impact, noise, odor, and agricultural-chemical criteria in subsection B, and any odor or fumes reaching more than 200 feet from the farm in a way that's discomforting to a reasonable person is barred citywide under subsection C.
Violations & Fines
Urban farms are not on Chapter 23.91's citation list, so a violation of SMC 23.42.051, running sales after 7 p.m., exceeding the one-delivery-a-day cap, or letting odor drift more than 200 feet, is enforced through Chapter 23.90's standard notice-of-violation process, with SDCI setting a compliance deadline and escalating to a Stop Work or Emergency Order for a continuing violation.
Frequently Asked Questions
Do I need special agricultural zoning to run an urban farm in Seattle?
What hours can I sell produce from my urban farm?
Can my urban farm be on a different lot than my house?
Sources & Official References
Other rules in Seattle
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Agricultural Zoning Protection in Nearby Cities
How other cities in King County handle agricultural zoning protection.