SB 1211 for Triplex in Redwood City
In Redwood City, a 3-unit triplex just became one of the highest-yield SB 1211 typologies — 4 new homes, ministerially approved. At Redwood City's median rent of $3,000/mo, that's ~$144K in additional gross annual rent.
The Redwood City scenario
The capital stack on a typical Redwood City triplex 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 Redwood City: Peninsula corridor.
Small multifamily (2–4 unit) design playbook
Small multifamily lots are usually constrained on width before they're constrained on count. With a 3-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 | 3 |
| Detached ADUs (SB 1211) | 3 |
| Interior conversions | 1 |
| Total new units | 4 |
| Median 1BR rent in Redwood City | $3,000/mo |
| Est. additional gross rent | $144K/yr |
| Estimated total project cost | ~$1,075K |
| Year-1 NOI estimate | ~$108K |
| Stabilized cap rate at cost | 10.0% |
| Replacement parking required | No (§66313) |
| Approval pathway | Ministerial · §66314 |
| Typical permit timeline in Redwood City | 75-130 days |
Get a personalized SB 1211 feasibility report for triplex owners in Redwood City
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