Pacific Beach Builder
San Diego County ADU with separate entrance illustrating AB 1033 condominium conversion and separate sale opportunity for Pacific Beach property owners

AB 1033 Takes Effect in San Diego County: Sell Your ADU Separately Starting April 4, 2026

On March 4, 2026, the San Diego County Board of Supervisors unanimously approved an ordinance implementing Assembly Bill 1033, which took effect April 4, 2026. This groundbreaking policy allows property owners in unincorporated areas to sell Accessory Dwelling Units (ADUs) separately from primary residences through a condominium conversion process. For Pacific Beach, La Jolla, Mission Beach, Bird Rock, and Tourmaline Surfing Park property owners, this creates entirely new investment strategies and homeownership pathways.

On March 4, 2026, the San Diego County Board of Supervisors unanimously approved an ordinance implementing Assembly Bill 1033, which took effect April 4, 2026. This groundbreaking policy allows property owners in unincorporated areas to sell Accessory Dwelling Units (ADUs) separately from primary residences through a condominium conversion process. For property owners from Tourmaline Surfing Park to Bird Rock—including Pacific Beach, La Jolla, and Mission Beach—this creates entirely new investment strategies and homeownership pathways.

What AB 1033 Means for Coastal San Diego Property Owners

AB 1033 allows a primary dwelling and ADU to be established as separate ownership interests through a condominium structure. Instead of selling your entire property or only renting out your ADU, you can now sell the ADU independently while retaining your primary residence.

According to the San Diego County Planning & Development Services, the Board also directed staff to return within 120 days with policy options to promote first-time homebuyers and homeownership opportunities through AB 1033 ADU separate sales.

Supervisor Jim Desmond emphasized the flexibility this creates: "We need housing, and the ADUs make up a large portion of our new construction in San Diego County," stressing the importance of avoiding regulations that hamper ownership opportunities, Times of San Diego reported.

The Investment Opportunity: ADU Values in Coastal Communities

Pacific Beach ADUs now rent for $2,000-$3,500 monthly and increase property values by 15-30%, according to Redfin's 2026 market data. With AB 1033 San Diego County implementation, the ADU investment economics shift dramatically.

The opportunity varies by location: Properties near Crystal Pier and the Pacific Beach boardwalk target investor-friendly rental markets, while La Jolla Shores area ADUs cater to luxury owner-occupancy. Mission Beach boardwalk properties benefit from high seasonal rental demand, creating distinct strategies for each coastal neighborhood.

For Pacific Beach ADUs costing $250,000 to build, selling as a condominium for $450,000-$500,000 could produce $175,000-$225,000 immediate profit after conversion costs and transaction expenses. Compare this to coastal median home prices: Pacific Beach sits at $1.3M while La Jolla commands $2.4M.

This creates a first-time homebuyer pathway. Instead of needing $1.3M+ for a Pacific Beach home, buyers could purchase a 600-800 square foot ADU condo for under $500,000—accessing coastal living at a fraction of traditional costs.

Next Steps: Condominium Conversion Process

The County developed an ADU Condo Guidance & Checklist to help property owners determine AB 1033 eligibility. The condominium conversion process requires a Tentative Parcel Map or Tentative Map application, condominium documentation, and separate Assessor's Parcel Numbers (APNs) for each unit.

For unincorporated coastal properties, you'll also need Coastal Development Permit compliance. Fortunately, AB 462's 60-day concurrent review process (effective October 15, 2025) streamlines coastal ADU permits for San Diego County property owners.

FAQ: AB 1033 in San Diego County

When did AB 1033 take effect in San Diego County?

The Board of Supervisors unanimously adopted AB 1033 on March 4, 2026, with implementation beginning April 4, 2026. The ordinance applies to unincorporated areas of San Diego County and allows property owners to sell ADUs separately through condominium conversion.

Can I sell my Pacific Beach ADU separately from my primary residence?

If your property is in San Diego County's unincorporated areas, yes. The AB 1033 condominium conversion process creates separate ownership for your ADU and primary residence, each with its own deed and APN. You'll need to follow the County's ADU Condo Guidance requirements and obtain necessary permits. Contact our team for a consultation on your specific property.

What is the 120-day first-time homebuyer directive?

During the March 4, 2026 vote, the Board directed County staff to return within 120 days with policy options to promote first-time homebuyers and give existing ADU tenants first opportunity to purchase. These policies aim to expand affordable homeownership pathways through ADU separate sales.

Conclusion: AB 1033's April 4, 2026 implementation in San Diego County creates unprecedented opportunities for coastal property owners from Tourmaline Surfing Park to Bird Rock. Whether you're looking to unlock equity by selling an existing ADU, develop new ADUs specifically for sale, or help first-time buyers access coastal homeownership, this AB 1033 policy fundamentally changes ADU investment economics in San Diego County.

Last updated: April 8, 2026. All information verified from official San Diego County sources.

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