Oregon City Zoning & Land Use Guide
Key Zoning Facts
Oregon City Zoning Overview
Oregon City is the county seat of Clackamas County and holds the distinction of being the first incorporated city west of the Rocky Mountains, established as the endpoint of the Oregon Trail. Located at the confluence of the Willamette and Clackamas rivers, the city features dramatic bluffs and Willamette Falls, one of the largest waterfalls in the United States. The historic downtown sits below the bluffs along the Willamette River.
The city's development code is managed by the Community Development Department. Oregon City has been working on ambitious plans for the Willamette Falls Legacy Project, which aims to redevelop the former Blue Heron Paper Company mill site into a mixed-use waterfront district.
Key Zoning Districts
Oregon City's code includes single-family residential zones (R-10, R-8, R-6, R-5, R-3.5), multi-family zones (R-2), commercial districts, and industrial areas. The downtown and waterfront areas have specific zoning encouraging mixed-use redevelopment.
ADU Regulations
Oregon City allows ADUs in all residential zones per Oregon HB 2001. No parking or owner-occupancy is required. ADUs provide infill opportunities in the city's established neighborhoods.
Development Process
Community Development reviews permits and land use applications. Major projects go before the Planning Commission. The city's steep terrain adds complexity to development review, with geotechnical requirements in hillside areas.
Regulatory Layers That Apply in Oregon City
Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.
Federal
- FEMA Flood Zones: Applicable
- View FEMA Flood Map
State — Oregon
- Building Code: Oregon Structural Specialty Code (2021 IBC)
- State ADU Override: Yes (HB 2001 / SB 458 - Cities over 2,500 must allow ADUs; no owner-occupancy or parking mandates)
County — Clackamas County
- Role: Property records, tax assessment, unincorporated area planning
City / Municipal
The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.
Overlay Districts
No overlay districts identified.
Private Restrictions
- HOA / CC&Rs common: Yes
- Check HOA CC&Rs for additional restrictions.
Primary Zoning Districts
- Min Lot
- 5,000 sq ft
- Max Height
- 30 ft
- Front Setback
- 15 ft
- Side Setback
- 5 ft
- Rear Setback
- 15 ft
- Min Lot
- None
- Max Height
- 45 ft
- Front Setback
- 15 ft
- Side Setback
- 5 ft
- Rear Setback
- 15 ft
- Min Lot
- None
- Max Height
- 50 ft
- Front Setback
- 0 ft
- Side Setback
- 0 ft
- Rear Setback
- 10 ft
ADU Rules in Oregon City
- Max Size
- 800 sq ft
- Max Height
- 24 ft
- Rear Setback
- 5 ft
- Side Setback
- 5 ft
- Parking
- None required (per state law)
- Owner Occupancy
- Not required (per state law)
- Permit Timeline
- 4-8 weeks
Permit Costs & Timelines
Permit Costs & Timelines
Specific permit fee schedules for Oregon City are available from the local planning department. Fees vary based on project type, scope, and valuation.
Check Oregon City permit fees →