SB 346 Airbnb Data Law: San Diego STR Owners Must Act (2026)

For years, operating an unlicensed short-term rental in San Diego's coastal neighborhoods carried real risk—but also a practical shield: the city could not easily prove you were the one running the listing. Airbnb and VRBO had no obligation to hand over host names, property addresses, or booking data to local enforcement agencies. Non-compliant operators in Pacific Beach (92109), Mission Beach (92109), Ocean Beach (92107), and La Jolla (92037) exploited this gap, continuing to collect nightly revenue while the city's Building and Land Use Enforcement (BLUE) team relied on neighbor complaints and manual platform monitoring.

That enforcement gap closed on January 1, 2026.

California Senate Bill 346—the Short-Term Rental Facilitator Act of 2025—gives cities the legal authority to demand property addresses, assessor parcel numbers, listing URLs, and host identity information directly from platforms like Airbnb and VRBO. Once San Diego adopts a conforming ordinance, the city can require platform-level reporting on a quarterly or monthly basis and impose fines of up to $10,000 per day against platforms that fail to comply.

For non-compliant STR operators, this is not a regulatory inconvenience. It is a fundamental change in the city's ability to find you, identify your property, and move toward license revocation—along with permanent disqualification from re-applying.

What Is California SB 346?

SB 346 was authored by Senator Maria Elena Durazo (D-Los Angeles) and passed the California Assembly with a 64-0 vote on August 29, 2025. The Senate followed with unanimous approval on September 2, 2025. Governor Newsom signed the bill on October 13, 2025, establishing the Short-Term Rental Facilitator Act as state law effective January 1, 2026.

The bill was co-sponsored by the League of California Cities and the Association of County Treasurers and Tax Collectors—a coalition that signals broad municipal intent to use these new powers aggressively.

How SB 346 Works

The law is not self-executing. Each city must adopt its own local ordinance referencing California Government Code Chapter 4.6 to activate its reporting requirements. Once a city does so, platforms classified as "short-term rental facilitators"—including Airbnb, VRBO, and similar services—become legally obligated to report the following data for each listing within that jurisdiction:

• Physical address, including 9-digit ZIP code
• Assessor Parcel Number (APN)
• Listing URL
• Unit-specific information for multi-unit buildings
• Current local STRO license number and Transient Occupancy Tax (TOT) certificate number

Cities can require this data to be submitted quarterly, or monthly if TOT returns are filed monthly. Local agencies may also audit platforms for compliance at the government's expense, and can levy administrative fines of up to $10,000 per day for platform violations.

Critically, SB 346 does not preempt any existing local STR regulations. San Diego's STRO Ordinance remains fully in force and is not weakened by the new state law—it is only strengthened by it.

Why the Enforcement Gap Existed Before SB 346

An estimated 25% to 75% of short-term rentals in California operate without proper local licenses, according to Senator Durazo's office. That figure reflects exactly the problem SB 346 was designed to address: city enforcement teams had no reliable mechanism to cross-reference platform listings with their own licensing databases at scale. Airbnb publicly resisted data-sharing requirements during legislative hearings, arguing the bill "requires a potentially broad collection of hosts' private and sensitive information" and violated federal privacy standards. Those objections did not prevent passage. The bill moved through both chambers without a single opposing vote.

How San Diego's STRO Enforcement Changes

San Diego already operates one of the most structured short-term rental frameworks in California. The Short-Term Residential Occupancy (STRO) Ordinance, which took effect in May 2023, created a four-tier licensing system and capped whole-home rentals at 1% of the city's total housing stock—approximately 5,400 permits citywide.

Platforms operating in San Diego are already required to provide the city with monthly listing data in a city-specified format, and hosts must maintain transaction records for four years. What SB 346 adds is a state-level mandate that elevates this data-sharing obligation from a local agreement platforms can push back against into a statutory requirement backed by $10,000-per-day fines.

For practical purposes, SB 346 eliminates the scenario where a non-compliant San Diego STR host could claim the platform simply did not share their information. Once San Diego adopts a conforming ordinance—which the city's existing data-reporting infrastructure makes straightforward—platforms have no legal basis to withhold host identity and property data.

The Current Permit Landscape (as of February 13, 2026)

According to the City of San Diego's STRO statistics, the permit system stands as follows:

STRO Tier	Description	Licenses Issued	Available
Tier 1	Home-sharing (owner present)	149	Unlimited
Tier 2	Part-time whole-home (max 20 nights/year)	2,345	Unlimited
Tier 3	Whole-home rentals (citywide, 1% cap)	4,642	964 remaining
Tier 4	Mission Beach whole-home (30% cap)	1,097	0 — waitlist closed
Total		8,233

Tier 4, which exclusively covers Mission Beach properties, is entirely closed. As of late 2025, there were 55 waitlisted applicants for Tier 4 with zero licenses available. Tier 3—the broader citywide whole-home category—has only 964 licenses remaining before it also hits the 1% cap.

Most Airbnb operators in Pacific Beach, Ocean Beach, and La Jolla who run whole-home rentals for more than 20 nights per year require either a Tier 3 or Tier 4 license. If they do not hold one, they are operating unlawfully under the STRO Ordinance—and under SB 346, the city will increasingly have the data to prove it.

Who Is at Risk?

SB 346 and the STRO Ordinance intersect most sharply for three categories of San Diego property owners:

Category 1: Whole-Home Operators Without a Tier 3 or Tier 4 License. These hosts are renting their property for more than 20 nights per year on Airbnb or VRBO without the required license. They may have applied in the lottery and lost, may have never applied, or may have been operating before the STRO Ordinance and assumed enforcement would remain lax. SB 346 eliminates their cover.

Category 2: Tier 4 Waitlisted Hosts Who Continued Operating. Some Mission Beach property owners placed themselves on the Tier 4 waitlist during its brief reopening in July-August 2025 and continued operating while waiting for a permit number that statistically may never come. With zero licenses available and a closed waitlist, continued whole-home operation in Mission Beach is a violation—now more detectable than ever.

Category 3: Hosts With Prior Enforcement History or Fraudulent Applications. San Diego's STRO Ordinance allows the city to deny license applications based on prior complaints at the property address, unpaid TOT, or active code enforcement cases. A city official quoted in a KPBS investigation stated: "They will be disqualified from getting any licenses in the future, and you will not be a legitimate business." For operators who submitted applications with inaccurate history, the risk of permanent disqualification is real and immediate.

Geographic Exposure: Which Neighborhoods Face the Most Risk?

San Diego's short-term rental concentration is heavily coastal. The Savory Group's analysis notes that most STR growth in San Diego has occurred in Pacific Beach. As of late 2023, the city counted approximately 8,000 active STR listings—a significant share of which are in Pacific Beach (92109), Mission Beach (92109), Ocean Beach (92107), and La Jolla (92037). These are precisely the neighborhoods where Tier 3 and Tier 4 license pressure is most acute, and where SB 346's data disclosure will create the sharpest exposure for unlicensed operators.

The Cost of Non-Compliance

San Diego's STRO Ordinance carries a penalty structure that escalates quickly and can become financially devastating for operators who continue without a valid license after an enforcement action begins.

Violation Stage	Consequence	Financial Exposure
First enforcement contact	Warning letter / cease-and-desist	Bookings must stop immediately
Second notice	Civil fine	Hundreds to low thousands per incident
Continued operation	Escalating fines	Up to $1,000 per day, accruing
License revocation	Loss of operating license	Full cessation of STR income
Application fraud or repeated violation	Permanent disqualification from re-applying	Permanent loss of STR income potential
Platform fine (under SB 346)	Administrative fine against Airbnb/VRBO	Up to $10,000/day for data non-compliance

The most consequential penalty for property owners is not the daily fine—it is permanent disqualification. A property that loses STR income potential in San Diego's coastal market loses a substantial portion of its income-producing value. Homes that command $300 to $500 per night as short-term rentals are worth meaningfully more than the same home restricted to long-term leases at $3,000 to $4,500 per month. The delta in annual income can exceed $40,000 to $60,000, capitalized over a sale into a meaningful difference in property value.

The "three strikes" enforcement model the city has described is designed precisely to avoid penalizing good operators—but for operators already on the city's radar with prior complaints or violations, the path from SB 346 data disclosure to license revocation is shorter than many owners realize.

Why STR Owners Are Selling Now

For non-compliant STR owners, the calculus that previously justified continuing to operate has shifted materially.

Before SB 346, a non-compliant operator could reasonably assume that enforcement required a neighbor complaint, a manual audit, or luck. With platform-level data reporting in place or imminent, that assumption no longer holds. The city will have the physical address, the APN, the listing URL, and the absence of a valid license number—all in a quarterly data file.

For STR owners who cannot win the Tier 3 lottery (only 964 remaining permits) or who are locked out of Tier 4 entirely, there is no compliance path that preserves their current income model. The options reduce to three:

1. Convert to long-term rental and accept the income reduction
2. Sell before enforcement escalates and pricing reflects the compliance problem
3. Continue operating and risk fines, revocation, and permanent disqualification

Selling before an enforcement action is initiated preserves maximum property value. Once a code violation or enforcement case is opened against a property, it must be disclosed in a standard California real estate transaction. Code enforcement cases can complicate or delay a traditional sale, and they reduce the pool of buyers willing to close at full market price.

A cash sale completed before enforcement escalates avoids disclosure complications entirely. The property transfers as-is, the seller receives the proceeds, and the liability transfers with the title—assuming proper transaction structure.

The Ocean Beach Planning Board and Pacific Beach community groups have actively advocated for stricter STR enforcement since the STRO Ordinance took effect. SB 346 is the state-level tool these community advocates sought. Enforcement in 2026 is not a possibility—it is a near-certainty for the operators the data will identify.

How Selling to a Cash Buyer Works

For non-compliant STR owners who decide that selling is their most prudent exit, a cash buyer offers several advantages that traditional real estate listings cannot match.

Speed: 7 to 14 Days to Close

A traditional home sale in San Diego's current market takes approximately 43 days from listing to close, and that timeline assumes no complications from inspections, financing contingencies, or code violation disclosures. For a property with an active STR enforcement case or code violation, finding a conventionally financed buyer becomes significantly harder—lenders scrutinize unresolved code issues before approving loans.

San Diego Fast Cash Home Buyer closes in 7 to 14 days. There are no financing contingencies, no lender appraisals, and no repair requirements. The process moves on the seller's timeline, which matters when the alternative is continued exposure to daily accruing fines.

No Disclosure Complications From Enforcement Cases

If an enforcement case has already been opened, California law requires disclosure in a traditional sale. Cash buyers who purchase as-is accept the property in its current condition—including any open enforcement matters—and price accordingly. This does not mean sellers receive nothing; it means the transaction closes without the delays and buyer hesitation that disclosure to retail buyers typically creates.

No Repairs Required

Many STR properties have deferred maintenance from high guest turnover. Paint, flooring, appliances, and HVAC systems in vacation rentals often show wear that would require attention before a traditional listing. Cash buyers purchase in as-is condition.

The Process

1. Contact San Diego Fast Cash Home Buyer with basic property information
2. Receive a no-obligation cash offer within 24 to 48 hours
3. Review the offer and choose your closing date
4. Sign the purchase agreement and open escrow
5. Close in 7 to 14 days and receive proceeds

There are no agent commissions (typically 5-6% of sale price on a traditional transaction), no staging costs, and no open houses.

What You Can Expect on Price

Cash buyers offer below retail market value—this is the trade-off for speed, certainty, and as-is condition. The discount typically ranges from 10% to 20% below what a fully renovated, compliance-clear property might achieve after 45 days on market. For STR owners facing daily fines, the prospect of permanent license disqualification, or a disclosure-complicated traditional sale, that discount frequently makes economic sense.

If you're currently operating an unlicensed whole-home STR in Pacific Beach, Mission Beach, Ocean Beach, or La Jolla, the time to evaluate your options is now—before the city's SB 346-enabled data requests make your listing visible to enforcement.

Frequently Asked Questions

What is California SB 346 and what does it require?

California SB 346, known as the Short-Term Rental Facilitator Act of 2025, took effect January 1, 2026. It authorizes cities and counties to adopt ordinances requiring platforms like Airbnb and VRBO to report detailed host and property data—including physical address, assessor parcel number, and listing URL—on a quarterly or monthly basis. Platforms that fail to comply face administrative fines of up to $10,000 per day. The law was passed unanimously by both chambers of the California Legislature and signed by Governor Newsom on October 13, 2025.

Does SB 346 automatically apply in San Diego, or does the city need to act first?

SB 346 is not self-executing. San Diego must adopt a local ordinance referencing California Government Code Chapter 4.6 to activate the platform data-reporting requirements. However, San Diego's existing STRO Ordinance already requires platforms to submit monthly listing data to the city. SB 346 strengthens that requirement by establishing it as state law with $10,000-per-day platform fines, removing any practical ability platforms have to resist disclosure.

What are the STRO permit tiers in San Diego and what do they cover?

San Diego's STRO system has four tiers. Tier 1 covers home-sharing where the owner is present and has unlimited permits available. Tier 2 covers part-time whole-home rentals of up to 20 nights per year and is also unlimited. Tier 3 covers whole-home rentals operating more than 20 nights per year across the city, capped at 1% of housing stock (approximately 5,400 total permits) with only 964 remaining as of early 2026. Tier 4 is exclusive to Mission Beach whole-home rentals, capped at 30% of Mission Beach housing units, and is currently fully closed with zero licenses available and a waitlist of 55 applicants.

What are the fines for operating a short-term rental without a license in San Diego?

San Diego's STRO enforcement begins with warning letters and cease-and-desist orders requiring cancellation of all bookings. Continued operation can result in civil fines that escalate with repeat violations, with enforcement officials citing fines of $1,000 per day that accrue over time. The most severe consequence is license revocation combined with permanent disqualification from re-applying for an STRO license. Operators who submitted fraudulent applications or who accumulate multiple violations face this permanent disqualification, which effectively removes the property from all STR income potential.

Which San Diego neighborhoods are most at risk from SB 346 enforcement?

Pacific Beach, Mission Beach, Ocean Beach, and La Jolla face the highest concentration of risk because they have the densest short-term rental activity in the city and the fewest available permits under the STRO cap. Mission Beach Tier 4 licenses are entirely closed. Pacific Beach has seen the most STR growth citywide. Ocean Beach community groups have advocated aggressively for stricter enforcement. La Jolla, while subject to the same ordinance, tends toward longer minimum stays. Coastal neighborhood STR operators who cannot demonstrate a valid license are the primary targets of SB 346-enabled enforcement.

If I already submitted a Tier 4 lottery application in 2025, am I protected from enforcement?

No. Being on the Tier 4 waitlist does not authorize operation. The waitlist only establishes your position for a license if and when one becomes available—which, given zero current availability and 55 waitlisted applicants, is uncertain. If you are operating a whole-home rental in Mission Beach without a valid Tier 4 license, you are in violation of the STRO Ordinance regardless of waitlist status. SB 346 will make it easier for the city to identify your listing and initiate enforcement.

Can I sell my San Diego STR property even if I have an active code enforcement case?

Yes, but the process depends heavily on the buyer type. A traditional retail sale requires disclosure of any active code enforcement cases, which can deter conventionally financed buyers and complicate lender approval. A cash buyer who purchases as-is can close on a property with an active enforcement case without the same disclosure complications, since no lender appraisal or loan underwriting is involved. Cash buyers price the risk into their offer and proceed with full awareness of the property's condition and compliance history.

What is the difference between selling to a cash buyer versus listing on the MLS?

A traditional MLS listing in San Diego currently takes approximately 43 days from listing to close, requires repairs and staging to attract buyers, involves agent commissions of 5-6%, requires lender appraisals and financing contingencies, and mandates full disclosure of code violations or enforcement cases. A cash sale to a buyer like San Diego Fast Cash Home Buyer closes in 7 to 14 days, requires no repairs or staging, involves no commissions, has no financing contingency, and purchases in as-is condition. The trade-off is that cash offers are typically 10-20% below peak retail value—a trade-off many non-compliant STR owners find worthwhile given the timeline urgency and disclosure complications.

Does the STRO license transfer to a new buyer when I sell my STR property?

No. STRO licenses are held by the individual host, not attached to the property. When a property sells, the new owner must apply for their own license and enter the lottery process if seeking a Tier 3 or Tier 4 permit. This means the STR income potential that drove the property's value is not automatically transferable, which affects what buyers are willing to pay. Some STR properties were marketed at a premium that reflected STR income potential—that premium is increasingly difficult to realize as licenses become scarcer and enforcement ramps up.

How do I get a cash offer for my STR property in Pacific Beach, Mission Beach, or Ocean Beach?

Contact San Diego Fast Cash Home Buyer directly with your property address and basic information about its current use and condition. You will receive a no-obligation cash offer within 24 to 48 hours. There is no cost to request an offer, no pressure to accept, and no requirement to disclose anything other than basic property facts at the offer stage. If the offer works for your situation, you choose the closing date and the transaction moves to completion in 7 to 14 days.

Conclusion

California SB 346 did not create San Diego's short-term rental compliance problem—it removed the practical obscurity that let non-compliant operators continue undetected. The STRO Ordinance, the 1% housing stock cap, the Tier 4 lottery freeze, and the $1,000-per-day fine schedule have all been in place since May 2023. What changes in 2026 is the city's ability to match platform listings against its licensing database at scale, using legally mandated data from Airbnb and VRBO themselves.

For STR owners in Pacific Beach (92109), Mission Beach (92109), Ocean Beach (92107), and La Jolla (92037) who cannot demonstrate a valid Tier 3 or Tier 4 license, the window to sell before enforcement escalates is open now. Once the city begins systematic data-matching from SB 346 reporting, enforcement actions will compound quickly—and with them, the complications that make a traditional sale harder.

San Diego Fast Cash Home Buyer purchases short-term rental properties as-is, in any condition, with or without enforcement history, in 7 to 14 days. If you're a non-compliant STR owner weighing your options, contact us for a no-obligation cash offer before the enforcement clock starts ticking. There is no pressure and no cost to find out what your property is worth today.