R-2 Zone in Tucson, AZ
R-2 zoning district rules in Tucson, AZ. Permitted uses, setbacks, height limits, and lot coverage requirements.
The R-2 zone in Tucson, AZ is a residential district (Two-Family Residential). Permits up to two dwelling units per lot (duplex). Allows slightly higher density than R-1 while maintaining low-density neighborhood character. This zone requires a 20 ft front setback, 5 ft side setback, and 20 ft rear setback. Maximum building height is 30 feet (2 stories). Maximum lot coverage is 50%.
Common Permitted Uses
- Single-family homes
- Duplexes
Permits up to two dwelling units per lot (duplex). Allows slightly higher density than R-1 while maintaining low-density neighborhood character.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 20 feet |
| Side Setback | 5 feet |
| Rear Setback | 20 feet |
Tucson UDC. Medium-density residential — common in central Tucson near University of Arizona.
Height Limits
- Max Height
- 30 feet
- Max Stories
- 2
Tucson UDC. Medium-density residential.
Lot Coverage
- Max Coverage
- 50%
Tucson UDC. Medium-density residential.
Parking Requirements
Single-family: 2 covered parking spaces required per single-family dwelling. Covered parking is strongly encouraged in Tucson's extreme heat to protect vehicles. Multi-family: 1.5–2 spaces per unit. Sun Tran bus routes reduce requirements near transit corridors.
Source: Tucson Unified Development Code Section 6.7.4 — Accessory Dwelling Units; Arizona HB 2297 (Laws 2024, Chapter 204). Last verified April 6, 2026. View source