B Zone in St. Louis, MO
B zoning district rules in St. Louis, MO. Permitted uses, setbacks, height limits, and lot coverage requirements.
The B zone in St. Louis, MO is a residential district. This zone requires a 20 ft front setback, 5 ft side setback, and 25 ft rear setback. Maximum building height is 30 feet (2 stories). Maximum lot coverage is 45%.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 20 feet |
| Side Setback | 5 feet |
| Rear Setback | 25 feet |
St. Louis Zoning Code. Zone B — single-family, standard suburban.
Height Limits
- Max Height
- 30 feet
- Max Stories
- 2
St. Louis Zoning Code.
Lot Coverage
- Max Coverage
- 45%
St. Louis Zoning Code.
Parking Requirements
Single-family: 1-2 spaces per dwelling unit. St. Louis's urban grid neighborhoods often have rear alley access for off-street parking. St. Louis Zoning Code. Multi-family: 1 space per unit. Reduced requirements for transit-proximate sites near MetroLink light rail. St. Louis Zoning Code.
Source: St. Louis City Revised Code Chapter 26 (Building); St. Louis Zoning Code (Ordinance 69560). Last verified April 6, 2026. View source