San Diego County ADU Ordinance August 2026: How AB 1033 Affects Your Home's Selling Value and Options

AB 1033 allows homeowners to sell their ADU as a separate condominium unit, independent from the main house. San Diego County's Board of Supervisors adopted AB 1033 on March 4, 2026, with implementation starting April 4, 2026, and an August 2026 hearing scheduled to finalize tenant purchase rights and first-time homebuyer provisions.

For SELLERS, this creates three distinct selling scenarios:

1. Sell the whole property as one package — Main house + ADU sold together to one buyer (traditional approach). This appeals to investors seeking rental income or multi-generational buyers.
2. Sell the ADU separately as a condo — Convert your ADU to a condominium and sell it independently while keeping your main house. Requires condominium map, CC&Rs, and HOA creation (estimated $15,000-$30,000 in conversion costs according to San Diego County guidance).
3. Sell both properties separately — Maximize value by selling to two different buyers: your main house to one buyer, ADU condo to another (often a first-time homebuyer seeking affordable entry).

Properties with existing ADUs typically command 10-20% higher sale prices in San Diego due to rental income potential ($2,500-$3,500/month for Pacific Beach ADUs). AB 1033 adds a fourth value driver: the option to sell separately, appealing to buyers who want flexibility.

Yes, but ONLY after completing the condominium conversion process. This involves:

• Filing a condominium map with San Diego County
• Creating CC&Rs (Covenants, Conditions, and Restrictions)
• Establishing an HOA structure
• Recording all documents with the County Recorder
• Legal and filing fees: $15,000-$30,000
• Timeline: typically 3-6 months for conversion

For cash buyers: We can purchase properties in ANY configuration — before conversion, during conversion, or fully converted. If you need to sell quickly and don't want to invest time/money in conversion, cash buyers will purchase your property as-is with the ADU included, then handle conversion ourselves if desired.

Which areas qualify: AB 1033 separate sales apply to unincorporated San Diego County areas. City of San Diego properties (including Pacific Beach, La Jolla, Mission Beach, Ocean Beach, North Park) already had AB 1033 access since August 2025 under city rules.

The August 2026 hearing will finalize two NEW provisions:

1. Tenant first right of purchase — If your ADU has a sitting tenant, they may receive the first opportunity to buy the ADU before you offer it to outside buyers.
2. First-time homebuyer protections — New owner-occupancy requirements and affordability provisions designed to prioritize first-time buyers over investors.

If you're planning to sell BEFORE the August hearing:

• Current AB 1033 rules (effective April 4, 2026) already allow separate sales without tenant/buyer restrictions
• Selling before August avoids potential tenant purchase delays
• No first-time buyer prioritization requirements yet

If you're selling AFTER the August hearing:

• Tenant purchase rights may delay your sale by 30-90 days if tenants exercise their option
• First-time buyer requirements could limit your buyer pool if prioritization becomes mandatory
• More clarity on conversion requirements and processes

Cash buyer advantage: We can close in 7-21 days regardless of AB 1033 status, tenant situations, or conversion requirements. If you need certainty and speed, cash buyers eliminate the complexity of navigating new AB 1033 provisions.

Potentially yes, IF the August 2026 ordinance mandates a formal tenant notification and waiting period. Here's how it typically works:

• Property owner notifies tenant of intent to sell ADU separately
• Tenant has 30-90 days (exact timeline TBD in August hearing) to exercise purchase option
• If tenant declines or doesn't respond, property owner can offer to outside buyers
• If tenant accepts, sale proceeds at terms negotiated between owner and tenant

This could delay your sale by 1-3 months if your ADU is tenant-occupied.

Workarounds for sellers:

1. Sell the whole property (main + ADU) as one package — Tenant rights typically don't apply if you're selling the entire property, not just the ADU separately.
2. Offer vacant possession — If your ADU is vacant, tenant purchase rights don't apply.
3. Sell to a cash buyer before conversion — Cash buyers purchase your property as-is, whole package, without triggering separate sale provisions.
4. Negotiate with tenant upfront — Some tenants have no interest in purchasing and will waive rights quickly.

For homeowners facing foreclosure, divorce, job relocation, or financial urgency, a 30-90 day tenant purchase window may not be viable. Cash buyers offer certainty: purchase the whole property in 7-21 days, no tenant complications.

It depends on your timeline, financial goals, and tolerance for complexity:

Sell as whole property (main house + ADU together) if:

• You need to close quickly (under 60 days)
• You want to avoid $15,000-$30,000 conversion costs
• Your ADU has a sitting tenant (avoids tenant purchase complications)
• You're facing foreclosure, divorce, or urgent relocation
• You prefer simplicity over maximum dollar value

Attempt separate sales if:

• You can wait 6-12 months for full conversion and two separate sales
• You're willing to invest $15,000-$30,000 upfront in conversion costs
• Your ADU is vacant (no tenant purchase delays)
• Market conditions strongly favor first-time buyers seeking affordable condos
• You have time to navigate new AB 1033 tenant/buyer provisions post-August hearing

Financial reality check:

• Selling whole property: Faster closing, immediate cash, no conversion costs, wider buyer pool
• Separate sales: Potentially 5-10% higher total sale price, but months longer timeline, upfront costs, two separate transactions, tenant complications

Most homeowners selling due to life circumstances (inheritance, financial distress, relocation) choose the whole-property approach for speed and certainty.

Cash buyer solution: We purchase both scenarios — whole properties with ADUs (most common) or partially-converted properties. No pressure to complete conversion before selling.

Cash buyers like San Diego Fast Cash Home Buyer specialize in purchasing properties with ADUs in ANY condition or conversion stage:

Scenario 1: Property with unconverted ADU

• We purchase the whole property (main house + ADU) as one transaction
• No requirement for you to complete AB 1033 condominium conversion
• Close in 7-21 days
• No conversion costs passed to you
• We handle any future conversion ourselves

Scenario 2: Property with tenant-occupied ADU

• We purchase with tenant in place
• No requirement for you to navigate tenant purchase rights
• We assume the tenancy and handle any future tenant purchase scenarios
• Close quickly without waiting for tenant decision windows

Scenario 3: Partially-converted ADU

• We purchase properties mid-conversion (if you started the process but didn't finish)
• No requirement for you to complete paperwork, HOA creation, or County filings
• We take over and finish the process after closing

Scenario 4: Fully-converted ADU condo

• We can purchase either the main house, the ADU condo, or both
• Flexible options depending on what you want to sell

Why this matters: Traditional buyers often hesitate with ADU properties due to complexity, financing restrictions (lenders sometimes balk at unconverted ADUs), and uncertainty about AB 1033 rules. Cash buyers eliminate these obstacles — we close quickly regardless of conversion status, tenant situations, or regulatory complexity.

Timeline: 7-21 days from offer to close, compared to 90-180+ days for traditional sales involving AB 1033 conversions.

The August 2026 San Diego County Board of Supervisors hearing affects unincorporated San Diego County areas only. These include:

Affected (unincorporated county areas):

• Spring Valley
• Lakeside
• Ramona
• Julian
• Alpine
• Pine Valley
• Jamul
• Certain coastal zones near Del Mar and Solana Beach
• Parts of Fallbrook and Bonsall
• Unincorporated areas near El Cajon and Santee

NOT affected by August 2026 hearing (already have AB 1033):

• Pacific Beach (City of San Diego jurisdiction — AB 1033 since August 2025)
• La Jolla (City of San Diego — AB 1033 since August 2025)
• Mission Beach (City of San Diego — AB 1033 since August 2025)
• Ocean Beach (City of San Diego — AB 1033 since August 2025)
• North Park, South Park, Hillcrest (City of San Diego — AB 1033 since August 2025)
• Downtown San Diego, Little Italy, East Village (City of San Diego — AB 1033 since August 2025)
• Point Loma, Clairemont, Bay Park (City of San Diego — AB 1033 since August 2025)

How to check your property's status:

• Visit San Diego County's property tax website and enter your address
• Look for "jurisdiction" field — if it says "San Diego County" (not "City of San Diego"), the August hearing affects you
• City properties already operate under City AB 1033 rules adopted in 2025

If you're unsure: Cash buyers can quickly verify your property's jurisdiction and explain which AB 1033 rules apply to your specific situation. We purchase properties in ALL San Diego jurisdictions — city or county, converted or unconverted.