Feasibility
The first timing question is whether the lot is worth pursuing before survey, mapping, or design costs stack up.
California SB9 timeline guide
How Long Does an SB9 Lot Split Take in California?
There is no single statewide SB9 timeline. A clean project can move faster than a constrained one, but timing depends on feasibility, survey work, map preparation, agency review, comments, revisions, and final recordation.
Short answer
What homeowners need to know first.
The practical answer is that SB9 timing is property-specific. The earlier you confirm eligibility, access, utilities, title conditions, and local process, the less likely you are to lose time later.
Key decision points
Key factor Key factor Key factor
The practical details matter more than the headline.
Agency review
City or county review time depends on application completeness, objective standards, staff comments, and resubmittals.
Recordation
A split is not truly useful until the final map and related requirements are resolved and recorded correctly.
Feasibility first
Riechers reviews the real property, not just the idea.
An SB9 lot split is not just a form submission. It is a technical subdivision path that requires a real parcel map, objective-standard review, and practical site coordination.
For many owners, the biggest delay is not the state law itself. It is discovering a title issue, utility issue, access issue, drainage condition, local comment, or lender requirement after money has already been spent in the wrong order.
The cleanest path is to run feasibility first, then move into survey, engineering, application preparation, city or county review, comments, revisions, approval, and recordation.
Related SB9 guides
Keep building the full picture.
Official sources
State rules and local review both matter.
Questions homeowners ask
How Long Does an SB9 Lot Split Take in California? FAQs
How long does the SB9 process take?
Timing varies by property and local agency. Feasibility, survey, map preparation, city or county review, comments, revisions, and final recordation all affect the schedule.
What slows down an SB9 lot split?
Common delays include unclear access, utility constraints, drainage issues, title or deed conditions, lender review, incomplete applications, and local agency comments.
Should I start design before checking feasibility?
Usually no. A feasibility review can prevent wasted design work by confirming whether the property can realistically support the split.
Next step
Find out what your lot can actually do.
Bring the property address and your goal. Riechers Engineering can help you understand whether SB9 is worth a closer look before you spend serious money.
Check SB9 Eligibility