Accessory Dwelling Units (ADUs)—also known as backyard homes, garage conversions, or casitas—have become a key part of the housing strategy in Southern California. As housing demand continues to outpace supply, ADUs offer a practical way to add much-needed rental units in existing neighborhoods. Thanks to recent legislation, it’s easier than ever for property owners to build these units, and private money lenders are helping make those projects financially feasible.
The Legislative Push for More ADUs
Over the past several years, California has passed a series of laws designed to break down local barriers and encourage ADU construction. These laws aim to reduce permitting delays, limit costs, and even allow the sale of ADUs as separate properties in some cases.
Here’s a look at some of the major updates:
- SB 9 & SB 10 (2021): Allow lot splits and up to four units per lot, bypassing many local zoning restrictions.
- SB 1069 / AB 2299 (2016): Streamlined ADU approvals and capped fees, allowing for 800 sq ft ADUs and 550 sq ft Junior ADUs (JADUs).
- AB 2221 / SB 897 (2022): Required objective and consistent building standards across jurisdictions.
- AB 976 (2023): Removed the owner-occupancy requirement, enabling purely rental-based ADU development.
- AB 1033 (2023): Legalized the sale of ADUs separately, similar to condominiums.
- SB 1164 (2024): Offered a 15-year property tax exemption for new ADUs.
- SB 1211 (2024–25): Expanded the number of allowable detached ADUs to as many as eight in some scenarios.
- AB 2533 (2024–25): Allowed older, unpermitted ADUs to be legalized if they meet safety standards.
This wave of legislation gives property owners more flexibility while also providing a faster path from planning to occupancy. The changes are particularly valuable in urban and coastal areas, where local rules once made ADU development nearly impossible.
Why Private Money Lending Works for ADU Projects:
Even with these supportive laws, financing remains a sticking point for many homeowners—especially those who want to keep their current low-interest first mortgages. Private money lending offers a solution by focusing on the after-repair value (ARV) of the home, not just current income or credit scores.
Here’s how private money loans help:
- Interest-only second loans that don’t disturb the original mortgage and are available for business purpose ADU’s
- Funds control to manage construction budgets, timelines and disbursements
- Short-term loans (typically 12–18 months) designed to bridge to a refinance
- Financing available for owner-occupied and non-owner-occupied properties
- Flexibility to move quickly, even when banks can’t
Once the ADU is complete and the overall property value increases, borrowers can refinance into a long-term solution.
Final Thoughts:
With the legal landscape now in their favor, Southern California property owners are in a strong position to add value through ADU development. Whether it’s a standalone rental, a garage conversion, or a detached unit that supports multigenerational renters, these additions can create income and help address the region’s housing shortage. With private money lending, getting there is more accessible than ever.