San Diego County ADU Separate Sale Hearing June 12, 2026: Owner Occupancy, First-Time Homebuyer Protections & Tenant Right of First Refusal Debate

Policy Question 1: Owner Occupancy Requirements Before ADU Sale

The most significant regulatory question on today's agenda is whether property owners must live on-site for a specified period before becoming eligible to sell ADUs separately under AB 1033.

Current City of San Diego Framework: When the City of San Diego adopted AB 1033 in August 2025, it imposed no owner occupancy requirement for separate sales. Property owners can build an ADU, complete the condominium conversion paperwork, and list the unit for sale immediately—or rent it out indefinitely before converting. This flexibility maximizes owner choice and investment liquidity.

Proposed County Requirement: County staff proposals under consideration would require 1-3 years of owner occupancy before separate sale eligibility. The rationale is straightforward: prevent speculative ADU construction purely for quick-flip profit, ensuring ADUs serve their intended purpose of providing housing (whether rental or owner-occupied) before entering the for-sale market.

As reported by Fox 5 San Diego, the June hearing will consider "options to promote first-time homeownership, which includes giving renters priority when the ADU goes up for sale and owner occupancy required for the first-year or longer."

Impact on Coastal Builders:

For Pacific Beach and La Jolla properties where coastal construction runs $375-$600 per square foot (with 20-30% premiums above national averages in marine environments), owner occupancy mandates fundamentally alter project economics:

• Original AB 1033 Model: Build 750 sq ft ADU for $300,000, sell for $500,000-$650,000 within 6 months = $200,000-$350,000 profit before closing costs
• 1-Year Hold Scenario: Must occupy (or rent) for 12 months before sale eligibility, delaying profit realization and adding property tax/insurance carrying costs of $8,000-$12,000
• 3-Year Hold Scenario: Transforms quick-sale strategy into medium-term rental investment, requiring 36 months of cash flow management before conversion option activates

Crucially, "owner occupancy" could mean the property owner must reside in either the primary residence or the ADU. Some jurisdictions allow owners to rent out the main house while living in the ADU to satisfy occupancy requirements—a strategy that works for downsizing retirees but not for investors or builders developing ADUs on non-owner-occupied properties.

Policy Question 2: First-Time Homebuyer Purchase Preferences

The second major provision under consideration would require ADU condominium sellers to offer units preferentially to owner-occupant buyers before listing to investors or second-home purchasers.

City of San Diego Model: The City's AB 1033 ordinance requires sellers to list ADU condominiums for 30 days on two public websites accessible to owner-occupant first-time buyers before opening sales to investors. This mirrors San Jose's approach and creates a mandatory preference period for homeownership purchases.

County Proposal: Today's hearing will likely consider a similar 30-60 day owner-occupant preference window, with ADU condos listed on platforms specifically targeting first-time homebuyers priced out of the traditional single-family market.

Rationale: With San Diego County median home prices exceeding $925,000 in 2026, and coastal properties in La Jolla and Pacific Beach regularly topping $1.5-$2.5 million, separately sold ADUs represent a rare sub-$500,000 homeownership entry point. A 750 sq ft ADU-condo in Pacific Beach could sell for $450,000-$500,000—affordable for dual-income professional couples or first-time buyers using FHA loans with 3.5% down payments.

County policymakers view first-time homebuyer preferences as a way to convert investor-dominated ADU rental inventory into owner-occupied housing stock, expanding homeownership opportunities for middle-income residents.

Impact on Sellers:

• Delayed Market Sale: 30-60 day mandatory listing period before investor buyers enter the pool
• Reduced Buyer Competition: Excluding investors and second-home buyers during preference period may lower offers if owner-occupant demand proves weaker than anticipated
• Financing Complexity: First-time buyers using FHA/VA loans face stricter appraisal requirements and longer closing timelines (45-60 days vs. 21-30 days for cash buyers)

For builders planning ADU development as investment inventory, first-time buyer preferences introduce uncertainty around sale timelines and final proceeds. A Pacific Beach ADU that might attract $500,000 cash offers from investors could sell for $475,000 to an owner-occupant buyer with financing contingencies and extended closing periods.

Policy Question 3: Tenant Right of First Refusal Provisions

The most controversial provision on today's agenda—and potentially the most disruptive to investment economics—is giving existing ADU tenants first right to purchase before market listing.

Proposed Framework: If adopted, tenant right of first refusal would require property owners to notify current ADU renters when converting to condominium status and planning separate sale. The tenant would receive 30-90 days to secure financing and match market value offers before the unit can be listed publicly.

Rationale: Tenant advocates argue that AB 1033 condominium conversions risk displacing long-term renters who have established stable housing in high-cost coastal areas. Giving tenants first opportunity to purchase protects against involuntary displacement while expanding homeownership pathways for existing residents.

San Diego County's directive to develop tenant protections aligns with California's broader housing equity priorities, particularly in gentrifying neighborhoods where ADU conversions could exacerbate displacement pressures.

Impact on Investment Calculations:

Tenant right of first refusal introduces multiple complications for ADU developers:

1. Sale Timeline Uncertainty: Even if the tenant ultimately cannot secure financing, the 30-90 day first refusal period delays market listing and extends time-to-sale
2. Below-Market Purchase Risk: Tenants may exercise purchase rights at appraised value rather than competitive bidding prices, potentially costing sellers $25,000-$50,000 in foregone premium offers
3. Tenant Notification Requirements: Owners must formally notify tenants, provide purchase timelines, and document the first refusal process—adding legal/administrative complexity
4. Rental Strategy Conflicts: Builders may avoid long-term tenants entirely, preferring short-term rentals or keeping ADUs vacant during hold periods to eliminate first refusal complications

For Pacific Beach properties where ADU rental income runs $2,000-$3,500 monthly, tenant right of first refusal creates a tension: Rent the unit to generate cash flow during mandatory hold periods (risking tenant purchase rights), or keep it vacant to preserve maximum sale flexibility (sacrificing $24,000-$42,000 annual rental income).

How County Rules Compare to City of San Diego AB 1033 Framework

The divergence between City and County AB 1033 implementation creates jurisdictional complexity for builders working across municipal boundaries:

Geographic Confusion: Most of Pacific Beach, La Jolla, Mission Beach, Bird Rock, and Tourmaline Surfing Park fall within City of San Diego jurisdiction and therefore operate under the City's more permissive AB 1033 framework. However, some coastal properties near jurisdictional boundaries—particularly in areas adjacent to Tourmaline Surfing Park, northern La Jolla Shores, and eastern Point Loma—may fall in unincorporated County areas subject to stricter regulations.

Property owners must verify jurisdiction with the County Assessor's office before assuming City rules apply—many properties carry "San Diego" mailing addresses despite being in unincorporated County territory. This is particularly common in coastal zones where city limits meet unincorporated land, such as properties near Tourmaline Canyon and the northern Pacific Beach boundary.

Financial Impact: How Owner Occupancy + Tenant Rights Change ADU Economics

To illustrate how today's regulatory decisions reshape investment calculations, consider a typical coastal ADU scenario:

Baseline Investment (City Jurisdiction - No Restrictions):

• Construction Cost: $325,000 (750 sq ft detached ADU in Pacific Beach, $433/sq ft)
• Soft Costs (permits, design, coastal development permit): $45,000
• Condominium Conversion Fees: $60,000
• Total Investment: $430,000
• Sale Price (immediate listing): $525,000
• Net Profit: $95,000 (22% ROI within 12-18 months)

Scenario 1: 1-Year Owner Occupancy + First-Time Buyer Preference (County Proposal):

• Same construction/conversion costs: $430,000
• Rental Income (12 months @ $2,800/mo): $33,600
• Carrying Costs (property tax, insurance, utilities): -$10,500
• First-Time Buyer Sale Price (potentially 5% below investor offers): $498,750
• Net Profit: $91,850 (21% ROI over 24-30 months)

Scenario 2: 3-Year Occupancy + Tenant Right of First Refusal (Maximum Restriction):

• Same construction/conversion costs: $430,000
• Rental Income (36 months @ $2,800/mo): $100,800
• Carrying Costs (36 months): -$31,500
• Tenant Purchase at Appraised Value (10% below market): $472,500
• Net Profit: $111,800 (26% ROI over 48-54 months)

Interestingly, the 3-year hold scenario produces the highest nominal profit due to accumulated rental income, but the lowest annualized return because capital remains tied up for 4+ years. For builders operating on construction lines of credit with 7-9% interest rates, delayed profit realization significantly impacts effective returns.

What Pacific Beach Builders Should Tell Clients Planning ADU Projects

Given today's regulatory uncertainty, coastal builders should advise clients:

1. Verify Jurisdiction First: Confirm whether the property falls in City of San Diego or unincorporated County territory. Most Pacific Beach, La Jolla, and Mission Beach properties are City jurisdiction (no owner occupancy requirement), but pockets of unincorporated land exist near boundaries.
2. Wait for Final Rules Before Committing: The Planning Commission's June 12 recommendation goes to the Board of Supervisors for final adoption (likely July-August 2026). Projects not yet permitted should wait for regulatory clarity before finalizing ADU investment strategy.
3. Design for Dual Strategy: Build ADUs that work both as long-term rentals (if hold periods required) and eventual resales. Prioritize finishes and layouts that appeal to owner-occupant buyers, not just renters.
4. Consider Grandfathering Provisions: Projects permitted before the ordinance effective date (estimated August-September 2026) may be grandfathered under current rules. Rushing to permit submission could lock in more favorable terms, though construction quality should never be compromised for speed.
5. Factor Tenant Relationships: If County adopts tenant right of first refusal, maintaining positive tenant relationships becomes crucial—hostile tenant-landlord dynamics could complicate future sale negotiations.

How to Attend June 12 Hearing and Submit Public Comments

The Planning Commission hearing takes place TODAY at 9:00 AM at the County Operations Center (COC) Hearing Room, 5520 Overland Avenue, San Diego, CA 92123.

Virtual Attendance: The County provides live streaming of Planning Commission meetings through the Planning Commission Hearings webpage.

Public Comment Procedures:

• In-Person Testimony: Arrive before 9:00 AM and complete speaker cards at the hearing room entrance
• Written Comments: Email submissions to PDS.PlanningCommission@sdcounty.ca.gov
• Large Groups: Encouraged to submit e-comments rather than individual testimony to manage hearing time

Key Talking Points for Builders/Homeowners:

• Balance tenant protections with housing production incentives
• Avoid over-regulation that discourages ADU development and reduces housing supply
• Recognize jurisdictional differences between City and County frameworks
• Support first-time homebuyer access while maintaining investment feasibility
• Request grandfathering provisions for projects already in planning stages

For questions about disability-related accommodations or hearing procedures, contact Planning and Development Services at (858) 694-2960.

Timeline: When Will Final Rules Take Effect?

Today's Planning Commission hearing initiates a multi-step approval process:

• June 12, 2026: Planning Commission hears staff proposals, public testimony, and votes on recommendation to Board of Supervisors
• July-August 2026: Board of Supervisors conducts final hearing and adoption vote (estimated 4-8 weeks after Planning Commission recommendation)
• 30-60 Days Post-Adoption: Ordinance amendments take effect after publication and administrative review
• Estimated Effective Date: August-September 2026

Grandfathering Provisions: Projects with building permits issued before the effective date may operate under current rules without owner occupancy or tenant right of first refusal requirements. However, "permitted" means formal permit issuance, not preliminary design review or conceptual approval.

Property owners considering ADU projects should consult with County Planning staff about grandfathering eligibility specific to their project timeline and permit status.

Conclusion: Navigating San Diego County's Evolving ADU Regulations

Today's June 12, 2026 Planning Commission hearing represents a critical juncture for ADU investment economics in unincorporated San Diego County coastal areas. The Commission's recommendations on owner occupancy requirements, first-time homebuyer preferences, and tenant rights of first refusal will determine whether County ADU sales remain investor-friendly or shift toward heavily regulated homeownership pathways.

For Pacific Beach builders and property owners, the key takeaway is jurisdictional awareness: Most coastal properties fall within City of San Diego boundaries and operate under the City's more permissive AB 1033 framework (no owner occupancy requirement, no tenant right of first refusal). But unincorporated County parcels face potentially stricter regulations that transform quick-sale strategies into multi-year hold investments.

The policy tension is real: County supervisors want to expand homeownership opportunities and protect tenant rights, while also encouraging ADU production to address San Diego's severe housing shortage. Finding the right regulatory balance will determine whether AB 1033 unlocks a new wave of affordable homeownership units—or adds so many restrictions that builders abandon separate sale strategies entirely.

As final rules take shape through summer 2026, coastal builders should maintain flexibility in ADU design (optimizing for both rental and resale scenarios), track both City and County regulatory developments, and advise clients to verify jurisdiction before committing to $300,000-$450,000 coastal ADU investments.

The promise of AB 1033—converting ADUs from rental-only assets into tradeable homeownership units—remains powerful. But implementation details matter enormously, and today's hearing will reveal just how accessible (or restricted) that promise becomes in practice.