SB 1211 for Duplex in Los Angeles
In Los Angeles, a 2-unit duplex just became one of the highest-yield SB 1211 typologies — 3 new homes, ministerially approved. At Los Angeles's median rent of $2,400/mo, that's ~$86K in additional gross annual rent.
The Los Angeles scenario
The capital stack on a typical Los Angeles duplex 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.
Local tip for Los Angeles: LA has its own ADU bonus program that stacks with SB 1211.
Small multifamily (2–4 unit) design playbook
Small multifamily lots are usually constrained on width before they're constrained on count. With a 2-unit existing footprint, the binding constraint becomes side-yard setbacks (4 ft min) and the 18-ft height limit. Two-story stacked-flat ADUs over surface parking are the highest-yield typology.
Pro-forma snapshot
| Existing units | 2 |
| Detached ADUs (SB 1211) | 2 |
| Interior conversions | 1 |
| Total new units | 3 |
| Median 1BR rent in Los Angeles | $2,400/mo |
| Est. additional gross rent | $86K/yr |
| Estimated total project cost | ~$806K |
| Year-1 NOI estimate | ~$65K |
| Stabilized cap rate at cost | 8.1% |
| Replacement parking required | No (§66313) |
| Approval pathway | Ministerial · §66314 |
| Typical permit timeline in Los Angeles | 60-120 days |
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