Fairfield, CA Right to Farm: Agricultural Zoning Protection (2026)
Key Facts
- New AG subdivision lot size
- 20-80 acres by area type
- Max building height
- 50 ft (CUP to exceed)
- Front/street setback
- 25 feet
- Grazing
- permitted outright
- Animal stable, ag processing, wells
- Conditional Use Permit required
- First zoning violation
- infraction, up to $100 fine
- Creek buffer near Green Valley/Suisun creeks
- up to 200 ft dedicated
Summary
Fairfield's AG (Agriculture) zoning district, set out at Zoning Ordinance Section 25.26, protects farmland by permitting grazing and crop production by right and prohibiting incompatible residential, commercial and industrial uses. New agricultural subdivisions need 20 to 80 acres per lot, and structures like animal stables and wells require a Conditional Use Permit.
AG (Agriculture) District. The AG zoning district is intended to provide for the enhancement and preservation of agriculture. It is intended that the agriculture district restrict land uses to: livestock grazing; crop production and other activities customarily related uses to agricultural operations; and non-agricultural uses that are compatible with agricultural activities. It is also intended that the AG zoning district prohibit incompatible uses including certain residential, commercial, industrial, and recreational uses. [...] Lot Area (for new subdivisions): 20, 40, or 80 acres as indicated by suffix. [...] The 20 and 40 acre minimum shall apply to areas identified as Intensive Agriculture on the General Plan Land Use Diagram. The 80 acre minimum shall apply to areas identified as Extensive Agriculture.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4962673; v0 updated 2026-02-17).
Full Breakdown
1 "to provide for the enhancement and preservation of agriculture," restricting land to livestock grazing, crop production, and compatible non-agricultural uses while prohibiting incompatible residential, commercial, industrial, and recreational uses. 6, which gives the City discretion to approve, condition, or deny based on site circumstances. Seasonal on-site produce sales are Permitted outright (Note 2). 3) sets dimensional standards: new AG subdivisions need a minimum lot of 20 or 40 acres in areas the General Plan designates Intensive Agriculture, or 80 acres in Extensive Agriculture areas.
Front and street-side setbacks run 25 feet; the interior side/rear setback jumps to 25 feet plus 1 additional foot for every foot of building height over 35 feet when the AG parcel abuts a residential zone. Maximum building height is 50 feet, raisable only with a Conditional Use Permit (Note 6). Where an AG parcel touches Jameson Canyon, American Canyon, Green Valley, Suisun, Ledgewood, Dan Wilson, or Laural Creek, Note 5 requires dedicating a stream environment zone up to 200 feet wide to the City under the Creekside Protection provisions, directly affecting Fairfield's Green Valley and Suisun Marsh-edge parcels.
Utility buildings of 500 square feet or less are exempt from the minimum lot, landscape, and setback standards (Note 4), with requirements set by the City case by case.
Violations & Fines
Fairfield enforces zoning through its general penalty at Municipal Code Section 1.7: a first violation of any code or ordinance provision is an infraction with a fine up to $100. A second or later violation within one year can be prosecuted as an infraction with a fine up to $250, or charged as a misdemeanor carrying a fine up to $1,000, up to six months in county jail, or both. The District Attorney or City Prosecutor handles prosecution. Building or using AG-zoned land for a Conditional use, such as an animal stable or agricultural processing operation, without the required Conditional Use Permit under Section 25.40.6 is a zoning violation subject to this penalty structure independent of any building-permit fines.
Frequently Asked Questions
What zoning district protects farmland in Fairfield, CA?
Can I keep livestock or run a farm stand in Fairfield's AG zone?
What is the minimum lot size to split agricultural land in Fairfield?
Do creek-adjacent farm parcels near Green Valley or Suisun face extra rules?
Sources & Official References
Other rules in Fairfield
California rules heatmap·Compare Fairfield to another location·View the California right to farm overview
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Agricultural Zoning Protection in Nearby Cities
How other cities in Solano County handle agricultural zoning protection.