R10 Zone in Portland, OR
R10 zoning district rules in Portland, OR. Permitted uses, setbacks, height limits, and lot coverage requirements.
The R10 zone in Portland, OR is a residential district (Single-Family Residential). Permits one dwelling unit per lot. Typically the most restrictive residential zone. Designed to preserve the character of established single-family neighborhoods. This zone requires a 20 ft front setback, 5 ft side setback, and 15 ft rear setback. Maximum building height is 30 feet (2 stories). Maximum lot coverage is 40%.
Common Permitted Uses
- Single-family homes
Permits one dwelling unit per lot. Typically the most restrictive residential zone. Designed to preserve the character of established single-family neighborhoods.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 20 feet |
| Side Setback | 5 feet |
| Rear Setback | 15 feet |
R10 zone: 10,000 sqft minimum lot. Portland Zoning Code 33.110.220.
Height Limits
- Max Height
- 30 feet
- Max Stories
- 2
R10 zone. Portland Zoning Code 33.110.215.
Lot Coverage
- Max Coverage
- 40%
R10 zone. Portland Zoning Code 33.110.215.
Parking Requirements
Single-family: 1 off-street parking space per dwelling unit in R20, R10, R7 zones. No minimum parking required in R5 or R2.5 zones or within 500 ft of a frequent service transit line per Portland Zoning Code 33.266. Multi-family: No minimum parking required in RM zones per Portland's 2019 parking reforms. Multifamily projects may provide parking voluntarily. Portland eliminated parking minimums in all RM zones and most commercial zones.
Source: Portland City Code Title 33, Section 33.205 — Accessory Dwelling Units; Oregon Revised Statutes 197A.420 (HB 2001 codification). Last verified April 5, 2026. View source