Marion County, OR Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- Standard front/rear/side
- 20 feet (EFU)
- Farm dwelling buffer
- 200 feet from farm/timber
- Accessory building buffer
- 100 feet
- AR near forest zones
- 200 feet
- Citation
- MCC 17.136.070; 17.136.100(B)
Summary
Standard rural setbacks are 20 feet front, side, and rear. But on farmland a new dwelling must sit 200 feet from any abutting parcel in farm use or timber production, and accessory buildings 100 feet, to protect agriculture.
Special Setbacks: Dwellings. A special dwelling setback of 200 feet from any abutting parcel in farm use or timber production is required. Accessory buildings. A special setback of 100 feet is required for buildings accessory to a dwelling from any abutting parcel in farm use or timber production.
Full Breakdown
For most new structures in the EFU and Acreage Residential zones, Marion County requires minimum yards of 20 feet front, 20 feet rear, and 20 feet side (10 feet side in AR), per MCC 17.136.100(B) and 17.128.060(B). The distinctive rule is the farm-protection buffer: MCC 17.136.070(A) imposes a special 200-foot setback for a new dwelling from any abutting parcel in farm use or timber production, and 100 feet for accessory buildings, reducible only through a formal alternative-site finding. AR-zone dwellings near resource zones carry a 100-foot (farm) or 200-foot (forest) special setback under MCC 17.128.050. These buffers keep homes from conflicting with normal agricultural and forestry practices.
Violations & Fines
Structures built inside a required setback or farm buffer without approval are violations and may be ordered relocated, removed, or subject to penalties.
Frequently Asked Questions
How far must a new farmhouse sit from neighboring farmland?
What are the ordinary setbacks in the rural residential zone?
Sources & Official References
Other rules in Marion County
Compare Marion County to another location·View the Oregon building setbacks & zoning overview
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