SB 1211 for 10-unit apartment in Fairfield
In Fairfield, a 10-unit 10-unit apartment just became one of the highest-yield SB 1211 typologies — 10 new homes, ministerially approved. At Fairfield's median rent of $2,100/mo, that's ~$252K in additional gross annual rent.
The Fairfield scenario
The capital stack on a typical Fairfield 10-unit apartment project: existing equity (the lot itself, owned outright in many cases), construction loan against the new ADU appraised value, refi at completion against the stabilized rent roll.
Fairfield-specific note: Suburban demand corridor.
Large multifamily (10+ unit) design playbook
A 10-unit complex is capped at 8 detached ADUs by statute, so the play shifts toward interior conversions: max(1, ⌊units × 25%⌋) = 2 additional units carved from common rooms, oversized lobbies, basement storage, or laundry rooms.
Pro-forma snapshot
| Existing units | 10 |
| Detached ADUs (SB 1211) | 8 |
| Interior conversions | 2 |
| Total new units | 10 |
| Median 1BR rent in Fairfield | $2,100/mo |
| Est. additional gross rent | $252K/yr |
| Estimated total project cost | ~$2,016K |
| Year-1 NOI estimate | ~$189K |
| Stabilized cap rate at cost | 9.4% |
| Replacement parking required | No (§66313) |
| Approval pathway | Ministerial · §66314 |
| Typical permit timeline in Fairfield | 70-110 days |
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