SB 1211 for 10-unit apartment in Hayward
A 10-unit 10-unit apartment in Hayward qualifies for up to 10 new homes under SB 1211 — 8 detached ADUs and 2 interior conversions. At Hayward's median rent of $2,500/mo, that's ~$300K in additional gross annual rent.
The Hayward scenario
The scenario most Hayward 10-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.
Local tip for Hayward: Streamlined ADU intake program.
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 Hayward | $2,500/mo |
| Est. additional gross rent | $300K/yr |
| Estimated total project cost | ~$2,016K |
| Year-1 NOI estimate | ~$225K |
| Stabilized cap rate at cost | 11.2% |
| Replacement parking required | No (§66313) |
| Approval pathway | Ministerial · §66314 |
| Typical permit timeline in Hayward | 70-115 days |
Get a personalized SB 1211 feasibility report for 10-unit apartment owners in Hayward
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