California Senate Bill 9
Maximize your land with an SB-9 lot split.
California law now lets most San Diego homeowners divide a single-family lot into two legal parcels — no public hearing, no neighborhood vote. It starts with a licensed surveyor. We handle everything.
Licensed PLS — San Diego County
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Ministerial approval — no public hearings
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End-to-end: eligibility to final recording
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Commercial Design
Licensed PLS — San Diego County | Ministerial approval — no public hearings | End-to-end: eligibility to final recording | Commercial Design
Why SB-9 is a game changer
California's Senate Bill 9 (SB-9) is one of the most significant changes to residential property rights in decades. If your property is in a single-family zone within an urbanized area and meets the state's objective criteria, your city must approve the lot split — no public hearing, no neighborhood vote, no discretionary review.
What this means in plain terms: if you qualify, you can divide your property into two legal parcels and build up to two units on each — four units total where there was once one single-family home. You can sell the new lot, build rental units, create multi-generational housing, or simply increase your property's total market value.
Three things you can do with an SB-9 split:
Sell the newly created lot for an immediate return
Build rental units for ongoing income
Create a separate parcel for a family member or multi-generational living
Key SB-9 parameters
2,400
Minimum lot size (sq. ft.) to qualify
4
Maximum units allowed across both new parcels
60/40
Required area ratio between the two new lots
R-1
Eligible zone type — single-family residential
What we handle for you
Our SB-9 Services
From the first title search to the final parcel recording — we manage every technical step required by California law and the City of San Diego.
01
Eligibility Analysis
Boundary and title research to confirm your property meets every state and local requirement before you spend a dollar.
02
Preliminary Parcel Map
We design your split to meet the required 60/40 area ratio with proper access, utility easements, and address assignments.
03
Topographic Survey
We map elevations, drainage, and existing structures so your new lot is development-ready from day one.
04
Final Parcel Map & Recording
Technical mapping and full coordination with city and county agencies to officially record your new parcels.
Is your property eligible?
SB-9 eligibility checklist
Is it in a single-family residential zone (R-1)?
Is the total lot size at least 2,400 sq. ft.?
Is it located within an urbanized area of San Diego County?
Has it not been part of a prior SB-9 split?
If you answered yes to all four, you likely qualify. Contact us with your APN for a professional eligibility review.
SB-9 questions we
hear most
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Yes. SB-9 is a ministerial process under California law. If your property meets the objective criteria, the city must approve the application — no discretionary vote, no neighborhood hearing. We specialize in making sure your application hits every one of those marks.
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SB-9 requires the applicant to sign an affidavit stating they intend to occupy one of the housing units as their principal residence for at least three years from the date the lot split is approved. This requirement was designed to prevent large investors from taking advantage of the law.
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Absolutely. One of the primary benefits of an SB-9 split is the creation of two separate legal titles. You can develop both yourself, sell the new lot to a builder, or keep it for future use.
Ready to find out if your lot qualifies?
Send us your APN and we'll review your eligibility — no cost, no commitment.
Or call us at 858-384-2929