SB 1211 for 8-unit apartment in Modesto
A 8-unit 8-unit apartment in Modesto qualifies for up to 10 new homes under SB 1211 — 8 detached ADUs and 2 interior conversions. At Modesto's median rent of $1,500/mo, that's ~$180K in additional gross annual rent.
The Modesto scenario
The scenario most Modesto 8-unit apartment owners face: an existing building, mature trees, and a back lot that's currently doing nothing. SB 1211's 4-ft setback and 18-ft height envelope fits 8 detached units behind that primary structure with room for fire-access in front.
Modesto-specific note: Central Valley pricing.
Mid-size multifamily (5–8 unit) design playbook
This is SB 1211's sweet spot. A 8-unit existing building maxes out the 8-detached cap (or comes close), so design moves are about packing detached ADUs efficiently around the existing structure and converting underutilized parking.
Pro-forma snapshot
| Existing units | 8 |
| Detached ADUs (SB 1211) | 8 |
| Interior conversions | 2 |
| Total new units | 10 |
| Median 1BR rent in Modesto | $1,500/mo |
| Est. additional gross rent | $180K/yr |
| Estimated total project cost | ~$2,464K |
| Year-1 NOI estimate | ~$135K |
| Stabilized cap rate at cost | 5.5% |
| Replacement parking required | No (§66313) |
| Approval pathway | Ministerial · §66314 |
| Typical permit timeline in Modesto | 60-90 days |
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