SB9 Units & Lot Splits in Los Angeles
California's SB9 law lets many single-family lots add a second home, split into two parcels, or both. We help LA homeowners review feasibility and build SB9 projects.
SB9 changed what's possible on single-family lots in California. Depending on your parcel, you may be able to add a second home, split your lot in two, or do both — unlocking equity, rental income, or housing for family on land you already own.
Because SB9 interacts with local zoning, setbacks, and overlays, every project starts with a careful feasibility review. We look at your lot's eligibility, what can realistically be built, and how SB9 compares to an ADU on the same property before committing to a path.
Once a direction is chosen, we handle the full process: design, structural and civil engineering, permits, and construction. Our team has experience navigating LA's planning departments and the unique requirements that come with SB9 projects.
- Free SB9 lot feasibility review
- Lot splits and second-home construction
- Architectural design and civil engineering
- Full permit and entitlement handling
- Licensed and insured — CSLB #1124836
How it works
Financing available
Homeowners may consider a HELOC, cash-out refinance, or construction loan. Financing is offered by third-party lenders and is subject to lender approval, rates, terms, and availability. Build Construction is not a lender.
Ask us about financingFrequently asked questions
See what you can build on your property
Use our free calculator to check eligibility, estimated rental income, and project options in about two minutes.