RSA-3 Zone in Philadelphia, PA
RSA-3 zoning district rules in Philadelphia, PA. Permitted uses, setbacks, height limits, and lot coverage requirements.
The RSA-3 zone in Philadelphia, PA is a residential district (Suburban Residential). Lower-density residential with larger setbacks and lot sizes than standard residential zones. Common in outer suburban areas and early-generation subdivisions. This zone requires a 15 ft front setback, 8 ft side setback, and 20 ft rear setback. Maximum building height is 35 feet (2 stories). Maximum lot coverage is 60%.
Common Permitted Uses
- Single-family homes
Lower-density residential with larger setbacks and lot sizes than standard residential zones. Common in outer suburban areas and early-generation subdivisions.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 15 feet |
| Side Setback | 8 feet |
| Rear Setback | 20 feet |
Philadelphia Code Title 14 — RSA-3 Semi-detached residential. Larger lots, semi-detached homes (twins). More suburban character in NE Philadelphia and Chestnut Hill.
Height Limits
- Max Height
- 35 feet
- Max Stories
- 2
Philadelphia Code Title 14 — RSA-3 Semi-detached residential.
Lot Coverage
- Max Coverage
- 60%
Philadelphia Code Title 14 — RSA-3 Semi-detached. More open space required for semi-detached character.
Parking Requirements
Single-family: 1 space per dwelling in RSD zones; 0 required in RSA rowhouse zones. Philadelphia rowhouses typically lack garages — street parking is the norm in dense neighborhoods. Multi-family: 0.5–1 space per unit. RM zones in Center City and inner neighborhoods often have reduced or zero minimums due to transit access.
Source: Philadelphia Code Title 14 (Zoning and Planning) — Accessory Residential Units; Philadelphia Construction Code. Last verified April 6, 2026. View source