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Corvallis, OR Right to Farm: Agricultural Zoning Protection (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Zone
AG-OS (Agriculture-Open Space)
Residential boundary setback
25 ft. minimum
Arterial street setback
100 ft.
Legacy-residential buffer
50 ft. plant/berm buffer plus 100 ft. building setback
Discretionary uses
Kennels, stockyards, stables need Conditional Development review
Enforcing department
Community Development Department
Base fine
Up to $500/day, Class A infraction

Summary

The City of Corvallis protects farmland through its Agriculture-Open Space (AG-OS) zoning district, Land Development Code Chapter 3.30, which reserves land for Agricultural Research Use and compatible horticulture and animal husbandry while limiting residential uses to accessory status. The zone sets minimum setbacks, 25 feet from residential boundaries and up to 100 feet along arterial streets, and requires extra buffering where housing predates actively farmed land.

This Zone is intended to implement the Open Space - Agriculture Comprehensive Plan Map designation and recognize areas within the City suitable for Agricultural Research Use and for Uses compatible with Agricultural and Horticultural Research Use Types. ... Residential Uses are Accessory to the Primary Uses. ... The following minimum setbacks shall apply to all structures other than fences or walls in the AG-OS Zone. a.Boundary Area - A setback of not less than 25 ft. shall be provided along each AG-OS Zone boundary line abutting any residential zone.b.Along Streets - the following minimum setbacks shall apply:1.Arterial Streets - 100 ft.2.Collector Streets - 70 ft.3.All other streets - 25 ft. ... When residential development existed on December 31, 2006 on lands adjacent to the Actively Farmed OS-AG Land, special buffering and setback requirements apply as follows: a.Buffering - A minimum 50 ft.-wide continuous plant or plant/berm buffer is required adjacent to the existing residential development property lines.b.Setbacks - A minimum building setback of 100 ft. shall be maintained adjacent to the existing residential development's property lines.

Full Breakdown

Chapter 3.30 of the Land Development Code establishes the AG-OS Zone to implement the Open Space-Agriculture Comprehensive Plan designation, reserving land in the City of Corvallis for Agricultural Research Use and compatible Horticultural Research Use Types under LDC § 3.30.10. Residential uses are only Accessory to farming, and Table 3.30-2 permits Animal Husbandry, Aquaculture, Community Garden, Garden, Horticulture, Market Garden, Row and Field Crops and Tree Crops outright ("P"), while Animal Sales and Services uses such as Horse Stables, Kennels, Stockyards and Veterinary services, plus Campgrounds (Willamette Park only), require Conditional Development ("CD") review under LDC Chapter 2.3.

LDC § 3.30.40 requires every use, activity, or operation in the zone to comply with local nuisance and animal control ordinances and state and federal standards. Dimensional standards under LDC § 3.30.50 set a minimum 25-foot setback along any AG-OS boundary abutting a residential zone, and street setbacks of 100 feet from arterial streets, 70 feet from collector streets and 25 feet from all other streets. Where residential development already existed on December 31, 2006 next to Actively Farmed OS-AG Land, LDC § 3.30.60 layers on special buffering: a 50-foot continuous plant or plant/berm buffer plus a 100-foot building setback from the older homes' property lines.

A street may cross that 100-foot setback only if the required 50-foot buffer still separates the street from the farmed land. Property owners seeking relief from these standards must apply for a Development Standards Adjustment under Chapter 2.12 or a Planned Development under Chapter 2.5; the base provisions of Articles I and II are not eligible for variation. Community Development administers the AG-OS Zone as part of Building Permit review under LDC § 1.3.20.

Violations & Fines

Developing or operating in the AG-OS Zone outside these standards, building closer than the 25 or 100-foot setbacks, skipping the required plant buffer, or running a Conditional Development use like a kennel or stockyard without City approval, is a Code violation under LDC § 1.3.60. Community Development classifies it Type I or Type II, and unresolved violations carry a Class A infraction fine up to $500.00 per day plus a civil penalty of up to $1,000.00 under § 1.3.60.04, appealable to the municipal judge within 20 days.

Frequently Asked Questions

What does the AG-OS Zone allow in the City of Corvallis?
The AG-OS Zone permits Animal Husbandry, Aquaculture, Community Gardens, Row and Field Crops, Tree Crops and Horticulture outright under LDC Table 3.30-2. Horse stables, kennels, stockyards and veterinary services need Conditional Development approval from Community Development. Housing is allowed only as an Accessory Dwelling Unit under LDC § 4.3.50.a, never as a standalone residential use, keeping the zone focused on farming and research.
How far must AG-OS buildings sit from residential zones?
LDC § 3.30.50 requires a minimum 25-foot setback along any AG-OS boundary line abutting a residential zone, plus street setbacks of 100 feet from arterial streets, 70 feet from collector streets, and 25 feet from other streets. Where housing existed before December 31, 2006 next to Actively Farmed OS-AG Land, § 3.30.60 adds a 50-foot buffer and 100-foot building setback.
Can a property owner reduce the AG-OS setbacks?
Only through a Development Standards Adjustment under LDC Chapter 2.12 or a Planned Development under Chapter 2.5, both administered by Community Development. LDC § 3.30.80 states the base provisions in Articles I and II of the code are not eligible for variation, so citywide procedural and definitional sections stay fixed even when a Chapter 3.30 dimensional standard is adjusted.
What happens if AG-OS setback or buffer rules are violated?
Community Development or the Floodplain Administrator investigates under LDC § 1.3.60, classifying the violation Type I or Type II. Unresolved violations are a Class A infraction punishable by a fine up to $500.00 per day, and the Director may also impose a civil penalty up to $1,000.00 under § 1.3.60.04, appealable to the municipal judge within 20 days of service.

Sources & Official References

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