R-4 Zone in San Antonio, TX
R-4 zoning district rules in San Antonio, TX. Permitted uses, setbacks, height limits, and lot coverage requirements.
The R-4 zone in San Antonio, TX is a residential district (Multi-Family Medium Density). Permits multi-family housing at medium density. Allows small to mid-size apartment buildings and condominiums. This zone requires a 20 ft front setback, 5 ft side setback, and 5 ft rear setback. Maximum building height is 35 feet (2 stories). Maximum lot coverage is 45%.
Common Permitted Uses
- Apartments
- Condominiums
- Townhomes
Permits multi-family housing at medium density. Allows small to mid-size apartment buildings and condominiums.
Setback Requirements
| Setback Type | Requirement |
|---|---|
| Front Setback | 20 feet |
| Side Setback | 5 feet |
| Rear Setback | 5 feet |
San Antonio UDC R-4 (Single-Family Residential, medium density). Same setback pattern as R-3 with slightly increased density allowances.
Height Limits
- Max Height
- 35 feet
- Max Stories
- 2
San Antonio UDC R-4 — same 35 ft / 2-story limit.
Lot Coverage
- Max Coverage
- 45%
San Antonio UDC R-4 — 45% maximum lot coverage.
Parking Requirements
Single-family: 2 spaces per single-family dwelling. Garage or paved off-street parking required. Multi-family: 1–2 spaces per unit depending on bedroom count. RM-4: 1.5 spaces per unit. RM-5: 1.25 spaces per unit.
Source: San Antonio Unified Development Code (UDC) Section 35-311 — Secondary Dwelling Units; library.municode.com/tx/san_antonio. Last verified April 6, 2026. View source