R-3 Zone in Birmingham, AL
R-3 zoning district rules in Birmingham, AL. Permitted uses, setbacks, height limits, and lot coverage requirements.
The R-3 zone in Birmingham, AL is a residential district (Multi-Family Low Density). Permits multi-family housing at low density, typically up to 4 units. Allows triplexes and fourplexes in addition to single-family and duplex uses. This zone requires a 20 ft front setback, 5 ft side setback, and 20 ft rear setback. Maximum building height is 35 feet (2 stories). Maximum lot coverage is 50%.
Common Permitted Uses
- Single-family homes
- Duplexes
- Triplexes
- Fourplexes
Permits multi-family housing at low density, typically up to 4 units. Allows triplexes and fourplexes in addition to single-family and duplex uses.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 20 feet |
| Side Setback | 5 feet |
| Rear Setback | 20 feet |
Birmingham Zoning Ordinance — R-3 Urban Single-Family. Common in older Birmingham neighborhoods.
Height Limits
- Max Height
- 35 feet
- Max Stories
- 2
Birmingham Zoning Ordinance.
Lot Coverage
- Max Coverage
- 50%
Birmingham Zoning Ordinance.
Parking Requirements
Single-family: 2 spaces per single-family dwelling. Birmingham is auto-dependent — MAX Transit bus service is available but limited. Multi-family: 1.5–2 spaces per unit. UAB Medical Center and hospital district have some transit alternatives.
Source: Birmingham Zoning Ordinance — Accessory Dwelling Unit provisions. Last verified April 6, 2026. View source