Zoning and Development Ordinance

The Clackamas County Zoning and Development Ordinance, also known as the ZDO, is made up of the requirements and standards that are applied to determining land use in the county.

Every effort is made to keep this site accurate and up to date, however the current version on file at the offices of the Department of Transportation and Development is the final authority. For questions about interpretation of these regulations, please contact the Planning and Zoning Division at 503-742-4500.

View proposed amendments.

Section 100: Introductory Provisions

101 Title
102 Purpose and Scope
103 Zoning Districts
106 Authorizations of Similar Uses

Section 200: General Definitions

201 General
202 Definitions

Section 300: Urban and Rural Residential Districts

315 Urban Low Density Residential (R-2.5, R-5, R-7, R-8.5, R-10, R-15, R-20, and R-30), Village Standard Lot Residential (VR-5/7), Village Small Lot Residential (VR-4/5), Village Townhouse (VTH), Planned Medium Density Residential (PMD), Medium Density Residential (MR-1), Medium High Density Residential (MR-2), High Density Residential (HDR), Village Apartment (VA), Special High Density Residential (SHD), and Regional Center High Density Residential (RCHDR) Districts
316 Rural Area Residential 1-Acre (RA-1), Rural Area Residential 2-Acre (RA-2), Recreational Residential (RR), Rural Residential Farm Forest 5-Acre (RRFF-5), Farm Forest 10-Acre (FF-10), and Future Urban 10-Acre (FU-10) Districts
317 Mountain Recreational Resort (MRR) and Hoodland Residential (HR) Districts

Section 400: Natural Resource Districts

401 Exclusive Farm Use District (EFU)
406 Timber District (TBR)
407 AG/Forest District (AG/F)

Section 500: Commercial Districts

510 Neighborhood Commercial (NC), Community Commercial (C-2), Regional Center Commercial (RCC), Retail Commercial (RTL), Corridor Commercial (CC), General Commercial (c-3), Planned Mixed Use (PMU), Station Community Mixed Use (SCMU), Office Apartment (OA), Office Commercial (OC), and Regional Center Office (RCO) Districts
511 Village Community Service District (VCS)
512 Village Office District (VO)
513 Rural Tourist Commercial (RTC) and Rural Commercial (RC) Districts

Section 600: Industrial Districts

602 Business Park, Light Industrial, and General Industrial Districts (BP, LI and GI)
604 Rural Industrial District (RI)

Section 700: Special Districts

701 General Provisions
702 Open Space Management District (OSM)
703 Floodplain Management District (FMD)
704 River and Stream Conservation Area (RSCA)
705 Willamette River Greenway (WRG)
706 Habitat Conservation Area District (HCAD)
707 Historic Landmark (HL), Historic District (HD), and Historic Corridor (HC)
708 Mineral & Aggregate Overlay District (MAO)
709 Water Quality Resource Area District (WQRAD)
710 Sensitive Bird Habitat District (SBH)
711 Government Camp Open Space Management District (GCOSM)
712 Private Use Airport & Safety Overlay Zone
713 Public Use Airport & Safety Overlay Zones

Section 800: Special Use Requirements

804 Places of Worship
805 Schools
806 Home Occupations to Host Events
808 Cemeteries and Crematories
813 Recreational Vehicle Camping Facilities
815 Produce Stands
817 Auto Wrecking Yards and Junk Yards
818 Surface Mining
819 Recycling Centers, Transfer Stations, and Recyclable Drop-Off Sites
821 Livestock
822 Home Occupations
825 Manufactured Dwelling Parks
827 Drive-Thru Window Services
830 Utility Carrier Cabinets
832 Bed and Breakfast Residences and Inns
833 Guest Houses
834 Composting Facilities
835 Wireless Telecommunication Facilities
836 Home Occupations for Canine Skills Training
837 Mobile Vending Units
839 Accessory Dwelling Units
840 Farmers' Markets
841 Marijuana Production, Processing, and Retailing
843 Accessory Historic Dwellings
844 Multi-Use Developments
845 Triplexes, Quadplexes, Townhouses, and Cottage Clusters

Section 900: General Provisions and Exceptions

903 Setback Exceptions
904 Height Exceptions

Section 1000: Development Standards

1001 General Provisions
1002 Protection of Natural Features
1003 Hazards to Safety
1004 Historic Protection
1005 Site and Building Design
1006 Utilities, Street Lights, Water Supply, Sewage Disposal, Surface Water Management, and Erosion Control
1007 Roads and Connectivity
1009 Landscaping
1010 Signs
1011 Open Space and Parks
1012 Lot Size and Density
1013 Planned Unit Developments
1015 Parking and Loading
1017 Solar Access
1021 Solid Waste and Recyclable Material Collection

Section 1100: Development Review Process

1102 Design Review
1103 Open Space Review
1105 Subdivisions, Partitions, Replats, Middle Housing Land Divisions, Condominium Plats, and Vacations of Recorded Plats
1107 Property Line Adjustments

Section 1200: Criteria for Discretionary Permits

1202 Zone Changes
1203 Conditional Uses
1204 Temporary Permits
1205 Variances
1206 Nonconforming Uses and Vested Rights

Section 1300: Administrative Action Review Process

1307 Procedures
1308 Interpretation
1309 Modification
1310 Time Extension
1311 Completion of Improvements, Sureties, and Maintenance
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