RM-3 Zone in Mesa, AZ
RM-3 zoning district rules in Mesa, AZ. Permitted uses, setbacks, height limits, and lot coverage requirements.
The RM-3 zone in Mesa, AZ is a residential district (Residential Mixed Density). Permits a range of residential density from single-family through multi-family, often applied in transition areas between low-density and higher-density zones. This zone requires a 15 ft front setback, 5 ft side setback, and 15 ft rear setback. Maximum building height is 40 feet (3 stories). Maximum lot coverage is 60%.
Common Permitted Uses
- Single-family homes
- Duplexes
- Small apartment buildings
Permits a range of residential density from single-family through multi-family, often applied in transition areas between low-density and higher-density zones.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 15 feet |
| Side Setback | 5 feet |
| Rear Setback | 15 feet |
Mesa Zoning Ordinance. Medium-density multifamily — apartment buildings common near light rail.
Height Limits
- Max Height
- 40 feet
- Max Stories
- 3
Mesa Zoning Ordinance. Medium-density multifamily.
Lot Coverage
- Max Coverage
- 60%
Mesa Zoning Ordinance. Medium-density multifamily.
Parking Requirements
Single-family: 2 covered spaces per single-family dwelling. Covered parking mandatory given extreme summer heat. Multi-family: 1.5–2 spaces per unit. Reduced near Valley Metro Light Rail stations along Main Street.
Source: Mesa City Code Chapter 11, Section 11-3-3 — Accessory Dwelling Units; Arizona HB 2720 (Laws 2024). Last verified April 6, 2026. View source