SB 1211 in Ontario
Senate Bill 1211 (Skinner, 2024) lets owners of existing multifamily lots in Ontario build up to 8 detached ADUs — without replacement parking, without discretionary review. Here's what it means for property owners in San Bernardino County.
The Inland Empire angle
Lower rents but cheaper land and faster permits. Logistics-corridor demand has pushed rent growth above the state average. What makes Ontario interesting under SB 1211 is its mix of pre-1980 multifamily stock and rents that pencil even modest builds.
Worked example: an 8-unit building in Ontario
An 8-unit existing multifamily property in Ontario can add up to 10 new homes under SB 1211: 8 detached units (the statutory cap) plus 2 interior conversions. At Ontario's median rent of $1,900/mo, that's roughly $228K in additional gross annual rent on land you already own.
Ministerial review under §66314 means no hearings, no neighborhood-character findings, no design boards.
Ontario jurisdiction notes
Logistics hub demand driving rents up. Like every California city, Ontario cannot require less than SB 1211 allows — it can permit more.
Approval pathway in Ontario
- Ministerial approval — no hearings, no comment period
- 4-foot side and rear setbacks
- 18-foot height limit
- No 1:1 replacement parking required (uncovered or covered)
- 60-100 days typical permit timeline
- Estimated eligible lot pool in Ontario: 3,200
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Frequently asked questions about SB 1211 in Ontario
Does SB 1211 apply to my Ontario property?
If your lot in Ontario (San Bernardino County) currently has 2 or more legal residential units, yes — SB 1211 applies as state law and supersedes local ordinances that conflict with §66314. Single-family lots use SB 9 instead.
How long do permits take in Ontario?
Ontario typically issues SB 1211 permits in 60-100 days under ministerial review. Logistics hub demand driving rents up.
What's a Ontario multifamily ADU actually worth?
At Ontario's median 1BR rent of $1,900/month, an 8-detached-ADU project produces roughly $182K in additional gross annual rent — before counting interior conversions.
Can Ontario require parking replacement?
No. §66313 prohibits cities — including Ontario — from requiring 1:1 replacement of any parking spaces removed to build SB 1211 ADUs.
Are there San Bernardino County overlays I need to worry about?
Possibly. Coastal-zone parcels, historic districts, and very-high fire-severity zones still trigger objective-standards review. But subjective design or neighborhood-character review is preempted.