SB 1211 for 16-unit apartment in Stockton
Own a 16-unit apartment in Stockton? SB 1211 lets you stack 12 new units on top of your existing 16: 8 detached + 4 interior. At Stockton's median rent of $1,600/mo, that's ~$230K in additional gross annual rent.
The Stockton scenario
Picture the typical case: a 16-unit 16-unit apartment on a Stockton block built between 1955 and 1975, with surface parking that hasn't been fully utilized in years. SB 1211 turns that parking into 8 detached units plus 4 interior conversions — 12 new doors that didn't exist before 2024.
Stockton watch: Lower cost basis; commuter market for Bay Area.
Large multifamily (10+ unit) design playbook
A 16-unit complex is capped at 8 detached ADUs by statute, so the play shifts toward interior conversions: max(1, ⌊units × 25%⌋) = 4 additional units carved from common rooms, oversized lobbies, basement storage, or laundry rooms.
Pro-forma snapshot
| Existing units | 16 |
| Detached ADUs (SB 1211) | 8 |
| Interior conversions | 4 |
| Total new units | 12 |
| Median 1BR rent in Stockton | $1,600/mo |
| Est. additional gross rent | $230K/yr |
| Estimated total project cost | ~$2,419K |
| Year-1 NOI estimate | ~$173K |
| Stabilized cap rate at cost | 7.2% |
| Replacement parking required | No (§66313) |
| Approval pathway | Ministerial · §66314 |
| Typical permit timeline in Stockton | 60-90 days |
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