R-1B Zone in Boise, ID
R-1B zoning district rules in Boise, ID. Permitted uses, setbacks, height limits, and lot coverage requirements.
The R-1B zone in Boise, ID is a residential district (Single-Family Residential). Permits one dwelling unit per lot. Typically the most restrictive residential zone. Designed to preserve the character of established single-family neighborhoods. This zone requires a 25 ft front setback, 10 ft side setback, and 25 ft rear setback. Maximum building height is 35 feet (2 stories). Maximum lot coverage is 35%.
Common Permitted Uses
- Single-family homes
Permits one dwelling unit per lot. Typically the most restrictive residential zone. Designed to preserve the character of established single-family neighborhoods.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 25 feet |
| Side Setback | 10 feet |
| Rear Setback | 25 feet |
Boise City Code Title 11. R-1B — low density single-family.
Height Limits
- Max Height
- 35 feet
- Max Stories
- 2
Boise City Code Title 11.
Lot Coverage
- Max Coverage
- 35%
Boise City Code Title 11.
Parking Requirements
Single-family: 2 spaces per single-family dwelling in R-1A through R-1D zones. Boise City Code Title 11. Multi-family: 1.5-2 spaces per unit in R-2 and R-3 zones depending on unit size.
Source: Boise City Code Title 11, Section 11-04-07 — Accessory Dwelling Units. Last verified April 5, 2026. View source