California SB 9 Eligibility Checker
Screen a California property for potential SB 9 two-unit development or urban lot split eligibility.
Enter Your Project Information
Run the tool for an instant preview. Your complete analysis is prepared at the same time and emailed after the report form is submitted.
Building your project analysis…
Checking the inputs, project logic and available source context.
Your detailed report is prepared.
The complete report includes the full checklist, source links, unresolved items, calculations or rule findings, and recommended next actions.
Your complete analysis
A copy has also been sent to your email.
Useful Answers Without Pretending Every Property Is the Same
Tell us about the property
Your address and project details establish the context.
Run the tool logic
Project-specific rules and calculations evaluate the inputs.
Check local context
Official building and planning sources appear when available.
Receive the full report
Preview the result instantly, then email the full analysis to yourself.
What SB 9 Screening Should Do
The tool tests major user-supplied eligibility factors one by one and explains which conditions appear favorable, which are unknown and which may complicate the project.
Two Different SB 9 Paths
Users can screen for a two-unit development, an urban lot split, or both. The tool keeps these pathways separate so the result is easier to understand.
Local Implementation Still Matters
Local agencies administer SB 9 applications and may publish maps, forms and objective standards. The address resolver surfaces local planning resources when available.
Strong Tools Explain What Is Known, What Is Estimated, and What Still Needs Verification.
Use the Result Correctly Before You Commit Time or Money
Property Conditions Can Change Feasibility
Historic or environmental constraints, tenant or housing history, lot configuration, access, existing improvements and prior subdivision history can be relevant. Unknown information stays labeled Unknown.
Connect Eligibility to Site Planning
A promising screen still needs property-level planning. Existing structures, access and potential new units or parcels need to fit the actual site.
Why SB 9 Results Need Confidence Labels
Some SB 9 factors can be screened from user input and public information, while others depend on property history, tenant status, historic resources, environmental constraints or local records. A useful tool must preserve that distinction. Unknown conditions should remain visible rather than being silently treated as favorable.
How to Use the Local SB 9 Process
After the preliminary screen, open the local planning source and review application forms, objective standards, maps and property-specific instructions. The tool's job is to narrow the likely pathway and organize unresolved questions so the user approaches the jurisdiction with a more focused project.
Why a Concept Site Plan Matters Before Committing
SB 9 eligibility does not automatically mean a practical development layout. Existing buildings, access, parking, potential parcel configuration, utilities and proposed units still need to fit the site. A concept-level property drawing can expose spatial conflicts before the owner invests heavily in design and application work.
California SB 9 Eligibility Checker FAQs
These answers explain how to interpret the tool and when local or professional verification still matters.
Does SB 9 automatically let me split my lot?
No. A property must satisfy eligibility criteria and local application requirements.
Can the checker guarantee SB 9 approval?
No. It provides preliminary screening and local-source guidance.
Can I check both a two-unit development and a lot split?
Yes. The tool can compare both pathways.
Why does the result show Needs Verification?
Some criteria depend on property history, local records or site conditions that cannot be safely inferred from a simple address lookup.
What should I do if the property looks promising?
Request a more detailed feasibility and site-plan review before committing to design and application costs.
Does the tool check every SB 9 exclusion automatically?
No. Some eligibility factors require local records or property-specific investigation, so the tool clearly labels unresolved items.
Can I use the result for a purchase decision?
Use it only as preliminary screening. A higher-stakes acquisition decision should rely on verified planning, title, survey and professional due diligence as appropriate.