Zoning & Size Limits
| Requirement | Eugene, OR | Bend, OR |
|---|
| Allowed Zones | All residential zones | All residential zones |
| Max Size (Detached) | 800 sq ft (or 10% of lot area, whichever is smaller) | 800 sq ft maximum floor area |
| Max Size (Attached) | 800 sq ft (or 10% of lot area, whichever is smaller) | 800 sq ft maximum floor area |
| Max Height | Detached ADUs set back from the front are height-l | Per underlying zoning district; Confirm with Bend |
| Parking Required | Not required (Oregon HB 2001 prohibits ADU-specific parking | Not required (no minimum on-site parking for ADUs) |
| Owner Occupancy | Not required | Not required |
Setback Requirements
| Setback | Eugene, OR | Bend, OR |
|---|
| Rear Setback | 10 feet | Per underlying zoning district; detached ADU must be at least 6 ft from the main house |
| Side Setback | 5 feet (interior yard); Confirm with Eugene Planning | Per underlying zoning district; Confirm with Bend Planning |
| Front Setback | 10 feet; Confirm with Eugene Planning | Per underlying zoning district; Confirm with Bend |
Permits & Timeline
| Detail | Eugene, OR | Bend, OR |
|---|
| Permit Timeline | 35-50 days | 40-55 days |
| Permit Fees | $1,600-$2,700 | $1,700-$2,900 |
| Impact Fees | Minimal | $400-$800 |
| Pre-Approved Plans | Available | Available |
Construction Costs
| Cost | Eugene, OR | Bend, OR |
|---|
| Avg Build Cost | $140,000-$280,000 | $140,000-$280,000 |
| Cost Per Sq Ft | $130-$260 | $140-$280 |
| Garage Conversion | $65,000-$155,000 | $70,000-$160,000 |
| Prefab ADU | $95,000-$220,000 | $100,000-$230,000 |
Rental Income Potential
| Rental | Eugene, OR | Bend, OR |
|---|
| 1BR Avg Rent | $1,200-$1,700/mo | $1,300-$1,800/mo |
| 2BR Avg Rent | $1,600-$2,400/mo | $1,700-$2,500/mo |
| Short-Term Rentals | Yes, permitted | Yes (vacation rental restrictions apply) |
| Est. ROI | 7-10% annual return | 7-10% annual return |
Which City Is Better for ADUs?
Eugene scores 8/10 while Bend scores 7/10 on our ADU-friendliness index.
Eugene edges ahead overall. Both cities offer viable ADU development opportunities — the best choice depends on your specific property, budget, and goals.
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