Bend welcomes ADU development with by-right approval and generous size allowances. The city's rapid growth and housing shortage have made ADU policy progressive, creating excellent conditions for residential infill development.
Zoning & Size Requirements [1]
| Allowed Zones | All residential zones |
| Max Size (Detached) | 800 sq ft (first ADU); 500 sq ft (second ADU) |
| Max Size (Attached) | 800 sq ft |
| Max Size (JADU) | No limit (conversion only) |
| Max Height | 35 feet |
| Max Units | 1 ADU per lot |
Setback Requirements [1]
| Rear Setback | 10 feet |
| Side Setback | 0 feet (easement) |
| Front Setback | 5 feet |
| Parking Required | 1 space (optional) |
| Owner Occupancy | Not required |
| Min Lot Size | 4,000 sq ft |
Permit Process & Fees
| Approval Process | By-right with building permit |
| Review Timeline | 40-55 days |
| Permit Fees | $1,700-$2,900 |
| Impact Fees | $400-$800 |
| Plan Check | 2-3 weeks |
| Pre-Approved Plans | Available |
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Construction Costs [2][3]
| Average Build Cost | $140,000-$280,000 |
| Cost per Sq Ft | $140-$280 |
| Garage Conversion | $70,000-$160,000 |
| Prefab ADU (Installed) | $100,000-$230,000 |
Finance Your ADU Project
Most ADU projects are funded through HELOCs, construction loans, or cash-out refinancing. Compare rates from top lenders.
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Rental Income Potential [4][5]
| Avg Rent (1 Bedroom) | $1,300-$1,800/mo |
| Avg Rent (2 Bedroom) | $1,700-$2,500/mo |
| Short-Term Rental | Yes (vacation rental restrictions apply) |
| Est. Annual ROI | 7-10% annual return |
Explore Prefab ADU Options
Prefab ADUs can save 20-40% vs. traditional construction and cut build time in half.
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Recent Law Changes
What's Changed Recently
- HB 2001 compliance expanding (2026): All cities >2,500 pop must allow ADUs by right
- Portland streamlined ADU permits: 30-day turnaround for pre-approved plans (2026)
- New state ADU financing pilot: Low-interest loans for owner-occupants (2026)
- Oregon reduced system development charges for ADUs under 800 sq ft (2026)
Tips for Building an ADU in Bend
- Bend's mountain resort appeal attracts strong vacation rental market
- Tourism season creates peak rental demand; plan for seasonal variations
- Lower cost basis than Portland; excellent ROI potential
- Quick approval process means faster project start and revenue generation
Sources & References
All data on this page is sourced from official government records and verified market data. View our full methodology.
- ADU Code Requirements — City of Bend Planning Department — Accessed 2026-02-25
- HomeAdvisor — ADU Construction Cost Data Market Data — Accessed 2026-02-24
- Angi — Local ADU Contractor Costs Market Data — Accessed 2026-02-24
- Zillow Rental Manager — Market Rent Data Market Data — Accessed 2026-02-24
- HUD Fair Market Rents Government Data — Accessed 2026-02-24
- ADU Code Requirements — City of Bend Planning Department — Accessed 2026-02-24
- Oregon ADU Regulations — DLCD Government Data — Accessed 2026-02-24
Frequently Asked Questions
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