Josephine County, OR Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Josephine County, OR, also referred to as storage shed, backyard shed, or accessory building regulations, set size limits, setbacks, and when a building permit is required.
Key Facts
- Lots under 1 acre
- 2,500 sq ft cumulative cap
- 1 to 3 acres
- 3,500 sq ft cumulative cap
- 3 to 5 acres
- 4,000 sq ft cumulative cap
- 5+ acres
- 6,000 sq ft cumulative cap
- Larger structures
- Site plan review required, § 19.42.040
- RR-1/RR-2.5 lot coverage cap
- 50% of lot area, all buildings
- Maximum fine
- $500 noncontinuing, $1,000 continuing
Summary
In rural Josephine County, outside the Grants Pass and Cave Junction urban growth boundaries, the combined footprint of sheds, garages, carports and shops is capped by lot size under JCC § 19.72.060: 2,500 square feet on lots under an acre, rising to 6,000 square feet on lots of five acres or more, with larger structures needing site plan review.
A. The cumulative size of all accessory structures (including attached garages, carports and shops) shall be limited based on the size of the lot or parcel on which they are to be constructed: 1. Smaller than one acre: 2,500 square feet; 2. One acre but smaller than three acres: 3,500 square feet; 3. Three acres but smaller than five acres: 4,000 square feet; 4. Five acres and larger: 6,000 square feet. ... ... C. In the RR-1 and RR-2.5 zones, and for lots zoned RR-5 that are less than two and one-half acres in size, the cumulative footprint of all buildings on the lot shall not exceed 50 percent of the lot area.
Full Breakdown
060(A) caps the cumulative size of all accessory structures, including attached garages, carports and shops, based on lot size: 2,500 square feet on lots smaller than one acre; 3,500 square feet on lots from one to under three acres; 4,000 square feet on lots from three to under five acres; and 6,000 square feet on lots of five acres or more. The cap is cumulative across every accessory structure on the lot combined, not a per-building allowance. 040 rather than a simple building permit. 5 zones, and for RR-5 lots under two and one-half acres: the cumulative footprint of all buildings on the lot, not just accessory structures, cannot exceed 50 percent of the lot area.
030, though agricultural buildings such as barns are exempt from the height cap. The section was last amended by Ord. 2017-001 and Ord. 2025-003, effective November 13, 2025.
Violations & Fines
An accessory structure that exceeds its lot's cumulative size cap, or the RR-1/RR-2.5 lot-coverage cap, without approved site plan review is enforced under the Rural Land Development Code's general violation process in Chapter 19.19: written notice with up to 30 days to correct, then District Attorney prosecution or Board of County Commissioners civil remedy, with fines up to $500 for a noncontinuing offense and $1,000 for a continuing one.
Frequently Asked Questions
How big a shed can I build on a 2-acre lot in rural Josephine County?
Do I need a permit for a big shop building?
Is there a separate coverage limit in the RR-1 zone?
Sources & Official References
Other rules in Josephine County
How Josephine County compares: Shed Permit Requirements by City·Compare Josephine County to another location·View the Oregon accessory structures overview
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