Side-by-side zoning analysis across cities
| Metric | R6B (NYC) | RM-2 (SF) | MF-3 (AUS) |
|---|---|---|---|
| Max FAR | 2.0 | 1.8 | 0.75 |
| Max Height | 55 ft | 50 ft | 40 ft |
| Lot Coverage | 65% | 55% | 60% |
| Effective Max Units | - | 6 (SB9+ADU) | - |
| Housing Type | R6B (NYC) | RM-2 (SF) | MF-3 (AUS) |
|---|---|---|---|
| Single-Family | ✓ By right |
✓ By right |
✓ By right |
| Duplex | ✓ By right |
✓ By right |
✓ By right |
| Apartments (20+) | ✓ By right |
● Conditional |
✓ By right |
| ADU | ✓ By right |
✓ State law (SB9) |
✓ By right |
R6B (NYC) offers the highest base density (FAR 2.0) and allows apartments by right. RM-2 (SF) has slightly lower base density (FAR 1.8) and requires conditional approval for large apartments, but California state law (SB9 + ADU) effectively allows up to 6 units on any residential lot regardless of local zoning. MF-3 (AUS) has the lowest density (FAR 0.75) but still permits apartments by right. For a multi-family development, NYC offers the most straightforward path; for maximum unit count on a single lot, SF's state law overrides create the most opportunity despite local restrictions.
Disclaimer: This report is generated by ZoneLens using publicly available data and standardized zoning analysis. Housing permissions are inferred from zoning code classification and may not reflect all local amendments. State law overrides are based on enacted legislation and may have additional conditions. Verify all information with qualified professionals.