SB 1211 for 16-unit apartment in Concord
In Concord, a 16-unit 16-unit apartment just became one of the highest-yield SB 1211 typologies — 12 new homes, ministerially approved. At Concord's median rent of $2,400/mo, that's ~$346K in additional gross annual rent.
The Concord scenario
The capital stack on a typical Concord 16-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.
Concord-specific note: BART-adjacent demand.
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 Concord | $2,400/mo |
| Est. additional gross rent | $346K/yr |
| Estimated total project cost | ~$2,419K |
| Year-1 NOI estimate | ~$260K |
| Stabilized cap rate at cost | 10.7% |
| Replacement parking required | No (§66313) |
| Approval pathway | Ministerial · §66314 |
| Typical permit timeline in Concord | 70-115 days |
Get a personalized SB 1211 feasibility report for 16-unit apartment owners in Concord
3 minutes. We email you a 4-page PDF with your buildable count, parking determination, jurisdiction overlays, and pro-forma.
No spam · free · delivered in 24 hrs