The Complete Guide to San Diego Short-Term Rental Regulations in 2026

The Complete Guide to San Diego Short-Term Rental Regulations in 2026 The Complete Guide to San Diego Short-Term Rental Regulations in 2026

For San Diego Vacation Rental Owners, Investors and Realtors

San Diego can be an excellent vacation rental market, but operating legally requires more than creating an Airbnb listing.

The City of San Diego has a formal Short-Term Residential Occupancy program, commonly called the STRO program, that regulates rentals of a dwelling unit or part of a dwelling unit for less than one month.

Owners may also need to deal with:

Transient Occupancy Tax
Rental Unit Business Tax
Local contact requirements
Guest notices and signage
Quarterly reporting for certain license tiers
HOA or condominium restrictions
Property-specific operating requirements

One of the biggest mistakes buyers make is assuming that because a property is physically located in a popular vacation area, it can automatically be operated as a short-term rental.

That is not always true.

Nancy's Vacation Rentals has worked in San Diego's coastal vacation rental market for more than 25 years. During that time, local vacation rental regulation has changed dramatically.

This guide summarizes the major City of San Diego rules in effect as of September 2026 and explains what owners and buyers should investigate before operating a property.

Important: This article is educational and is not legal, tax, or regulatory advice. Rules can change, individual circumstances vary, and owners should verify current requirements directly with the City of San Diego and appropriate professional advisors.

What Counts as a Short-Term Residential Occupancy in San Diego?

The City of San Diego defines Short-Term Residential Occupancy as occupancy of a dwelling unit or part of a dwelling unit for less than one month.

If the dwelling is located within the City of San Diego and is rented for qualifying short stays, the City's STRO rules generally apply regardless of the property's base zoning.

This is important because “San Diego” can refer to the broader county as well as the incorporated City of San Diego.

A property outside San Diego city limits may be governed by a different municipality or by San Diego County rules.

When Did San Diego Begin Requiring STRO Licenses?

The City's STRO licensing requirement became enforceable on May 1, 2023.

Operating a qualifying short-term residential occupancy in the City without the required license is unlawful.

The Four San Diego STRO License Tiers

San Diego uses four license tiers.

Tier General Use Key Concept Tier 1 Part-Time 20 days or fewer of STRO use per year Tier 2 Home Sharing Host generally resides onsite; more than 20 rental days allowed Tier 3 Whole Home Outside Mission Beach Whole-home rental for more than 20 days where host does not reside onsite Tier 4 Mission Beach Whole Home Whole-home rental for more than 20 days within the Mission Beach Community Planning Area

Tier 1: Part-Time Rentals

Tier 1 generally applies when the dwelling is rented as an STRO for an aggregate of 20 days or fewer during the year.

The host does not have to reside onsite during the rental.

This tier can make sense for an owner who only occasionally rents a primary or second home.

Tier 2: Home Sharing

Tier 2 is generally designed for home sharing where the host resides onsite and rents a room or rooms for more than 20 days per year.

The City also allows limited whole-home use while the host is absent from the permanent residence, subject to the Tier 2 requirements.

This structure is different from operating a dedicated whole-home vacation rental.

Tier 3: Whole-Home Rentals Outside Mission Beach

Tier 3 applies to qualifying whole-home STRO operations for more than 20 days per year where the host does not reside onsite and the property is outside the Mission Beach Community Planning Area.

Tier 3 licenses are capped.

The City states that the number of Tier 3 licenses cannot exceed 1% of San Diego's total housing units outside the Mission Beach Community Planning Area.

As of the City's August 28, 2026 update:

4,853 Tier 3 licenses had been issued
808 Tier 3 licenses remained available

Availability can change, so buyers should verify current numbers before relying on them.

Tier 4: Mission Beach Whole-Home Rentals

Mission Beach has its own whole-home license category.

Tier 4 applies to qualifying whole-home STRO operation for more than 20 days per year inside the Mission Beach Community Planning Area.

The number of Tier 4 licenses is capped at 30% of dwelling units within the Mission Beach Community Planning Area.

As of the City's August 28, 2026 update:

1,099 Tier 4 licenses had been issued
No additional Tier 4 licenses were listed as available
The City states that the Tier 4 application period is closed

This can be extremely important when buying a Mission Beach property.

An existing STRO license is not simply an asset that automatically transfers with the sale.

STRO Licenses Are Not Transferable

The City states that STRO licenses are not transferable between hosts or between property locations.

If the existing host is no longer applicable, the current license must be canceled and the new host must obtain the appropriate license.

This is especially important in a real estate transaction.

A buyer should not assume:

“The seller has a vacation rental license, so I will have one after closing.”

That assumption can be financially dangerous.

A Host Can Generally Hold Only One STRO License

Under the City's current structure, a host may hold a maximum of one STRO license at a time and may not operate more than one dwelling unit as an STRO at the same time.

The host must be a natural person with the legal right to occupy the dwelling and permit short-term occupancy.

A property management company itself cannot be the licensed host.

A property manager can, however, serve as the designated local contact if the applicable requirements are satisfied.

Two-Night Minimum for Tier 3 and Tier 4

The City currently requires a guest two-night minimum stay for Tier 3 and Tier 4 licenses.

This is different from the minimum-night strategy a host might otherwise choose for revenue management.

Owners need to distinguish between:

A legally required minimum stay
A pricing or revenue-management minimum stay

A pricing system should never reduce a stay requirement below the legal minimum that applies to the property.

Tier 3 and Tier 4 Utilization Requirement

The City's STRO guidance states that Tier 3 and Tier 4 licenses must be utilized for a minimum of 90 days each year during the license term in order to maintain the license.

This is easy to overlook.

An owner who obtains a whole-home license and then barely uses it for STRO activity may create renewal or compliance problems.

How Long Does an STRO License Last?

San Diego STRO licenses expire two years from the date of issuance.

The City allows qualifying licenses to be renewed under the ordinance.

The City states that renewal notices are emailed to hosts approximately 60 days before expiration.

Current STRO License Fees

The City lists the following application and license fees effective March 1, 2025:

Tier Application Fee License Fee Tier 1 $33 $193 Tier 2 $33 $284 Tier 3 $41 $1,129 Tier 4 $41 $1,129

The City states that these fees are non-refundable.

Owners should verify current fees when applying or renewing because municipal fees can change.

You Also Need a Transient Occupancy Tax Certificate

An STRO license is not the only requirement.

If a property in the City of San Diego is rented to a transient for less than one month, the operator must also obtain a Transient Occupancy Registration Certificate and comply with the City's Transient Occupancy Tax requirements.

This applies whether the property is rented:

Directly by the owner
Through a property management company
Through an online booking platform

San Diego TOT Rates Changed in 2025

Effective May 1, 2025, San Diego moved from a single 10.5% TOT rate to three geographic tax zones.

The City currently lists the following TOT rates:

Tax Zone TOT Rate Zone 1 11.75% Zone 2 12.75% Zone 3 13.75%

The correct rate depends on the property's location.

The City provides an interactive tax-zone lookup tool for determining which rate applies to an individual property.

TOT Is Generally Remitted Monthly

The City requires operators to collect applicable TOT from transient guests, hold the money in trust, and remit the tax to the City Treasurer.

Owners should understand who is responsible for this process when using a property management company or booking platform.

Rental Unit Business Tax May Also Apply

The City states that owners who rent all or part of a residential property for more than six days in a calendar year are responsible for Rental Unit Business Tax, subject to applicable exemptions and requirements.

This is separate from the STRO license and TOT.

Local Contact Requirement

STRO properties must have an appropriate host or designated local contact.

The City's guidance states that the local contact must respond to a complainant in person or by telephone within one hour and take action to resolve the issue.

A property management company can serve as the local contact.

For owners who live outside San Diego, this is one reason professional local management may be particularly valuable.

Exterior STRO Notice

Hosts are required to maintain an exterior notice visible from the sidewalk or public right-of-way.

The City states that the notice includes information such as:

TOT certificate number
STRO license number
Host or local contact information
City Code Enforcement contact information

The City provides a host-signage template.

STRO License and TOT Numbers Must Appear in Advertising

The City's host operating requirements call for the applicable TOT certificate and STRO license numbers to be included in advertisements.

Owners should make sure listings remain accurate across every booking channel.

Good Neighbor Policy

San Diego requires hosts to provide guests with its Good Neighbor Policy.

The policy reinforces expectations regarding:

Noise
Neighborhood behavior
Parking
Trash
Respect for the surrounding residential community

This is not simply a guest-experience document.

It is part of operating within the City's regulatory framework.

Human Trafficking Requirements

The City's STRO operating requirements include human-trafficking awareness obligations.

Hosts must maintain proof of completing an approved awareness course and must post guest-facing information on how to report suspected human trafficking.

Tier 3 and Tier 4 Quarterly Reports

Hosts with Tier 3 and Tier 4 licenses are currently required to submit quarterly STRO reports to the City.

Tier 1 and Tier 2 hosts are not currently subject to the same quarterly host-reporting requirement.

Owners using a professional manager should clearly understand who prepares and submits these reports.

Hosting Platforms Also Have Reporting Requirements

The STRO ordinance imposes reporting and recordkeeping requirements on qualifying hosting platforms.

Platform reporting does not eliminate the host's own responsibilities.

Owners should avoid assuming that Airbnb or another platform automatically handles every City requirement.

Records May Need to Be Maintained

The City's ordinance and related operating requirements include recordkeeping obligations.

Owners and managers should maintain organized records relating to STRO operations, reservations, taxes, and required reporting.

Good recordkeeping becomes especially important during audits, license renewals, property sales, or management-company transitions.

Noise and Nuisance Complaints Can Create Real Risk

Operating legally requires more than holding a license.

The property must also be operated responsibly.

The City's enforcement system allows complaints involving:

Noise
Excessive trash
Local contact response
Improper business activity
Licensing violations

Repeated or serious violations can result in enforcement action.

The City states that consequences can include civil penalties and license revocation.

The Local Contact Must Do More Than Answer the Phone

If a neighbor reports a nuisance, the local contact is expected to respond within the required timeframe and take action to address the issue.

Simply answering the phone but failing to address the nuisance may still create a compliance problem.

Can an ADU Be Used as an STRO?

This is an area where owners should be particularly cautious.

The City identifies use of certain non-compliant structures, including ADUs, JADUs, companion units, and guest quarters, as a potential STRO licensing violation depending on the circumstances and applicable approvals.

Do not assume that because a structure can legally exist, it can automatically be used as a short-term rental.

Property-specific zoning and permit review may be necessary.

City Approval Does Not Override an HOA

This is one of the most important concepts for condominium buyers.

A City STRO license does not automatically give an owner the right to short-term rent if the HOA or governing documents prohibit it.

City regulations and private property restrictions are separate.

A condominium may be:

Eligible under City STRO rules
But prohibited from short-term rentals by the HOA

The reverse can also occur: an HOA may allow vacation rentals, but the owner may still need the appropriate City license.

Always Review the HOA Documents

Before purchasing a condo for vacation-rental use, review:

CC&Rs
Rules and regulations
Minimum lease terms
Rental caps
Guest registration rules
Parking restrictions
Recent board minutes when relevant

A Realtor's statement that a building “allows Airbnb” should not be the end of the investigation.

Do Not Rely Only on Existing Airbnb Listings in the Building

Seeing active vacation rentals in a building does not prove your unit can legally operate.

An existing listing may:

Have different grandfathered rights
Be operating under a different license structure
Be non-compliant
Be subject to different HOA circumstances

Always investigate the specific unit.

Buying a Property With an Existing Vacation Rental Business

Buyers should investigate several separate items:

Does the City currently allow the intended STRO use?
Which license tier would apply?
Is a license currently available?
Does the HOA or building permit the intended rental term?
Will the seller's existing license transfer? Usually, it will not.
What happens to future reservations?
Who owns the existing Airbnb and Vrbo listings?

This due diligence should happen before the buyer relies on vacation rental revenue in an investment analysis.

Mission Beach Buyers Need Extra Caution

Mission Beach deserves special attention because Tier 4 is capped separately and the City currently states that the application period is closed.

A seller may have a productive vacation rental business today while a buyer may face a very different licensing situation after ownership changes.

The historical revenue of the property does not guarantee that a new buyer can legally reproduce that revenue.

This is one of the most important issues to evaluate before purchasing a Mission Beach vacation rental.

San Diego STRO Compliance Checklist

Item What to Verify Property Location Confirm the dwelling is actually within the City of San Diego STRO Tier Determine which of the four license tiers applies License Availability Verify current availability for capped tiers Host Confirm the proposed host satisfies City requirements TOT Obtain the required registration and determine the property's tax zone Rental Unit Tax Determine whether Rental Unit Business Tax applies Local Contact Establish compliant local contact coverage Signage Post required exterior notice and guest information Reporting Understand quarterly reporting obligations for Tier 3 and Tier 4 HOA Review CC&Rs, rental restrictions and building rules

Common San Diego STR Compliance Mistakes

Assuming the seller's STRO license transfers
Confusing City approval with HOA approval
Using the wrong license tier
Forgetting TOT registration
Using an incorrect TOT rate
Failing to update local contact information
Missing required signage
Ignoring quarterly reporting
Assuming a property manager can be the licensed host
Assuming an ADU is automatically eligible

Why Local Experience Matters

Vacation rental regulations are only part of the picture.

Owners also need to understand how the rules interact with individual neighborhoods, buildings, HOAs, and operational realities.

Nancy's Vacation Rentals has worked in San Diego's coastal vacation rental market for more than 25 years.

That experience can help owners and buyers ask the right questions before committing to a property or management strategy.

It does not replace advice from the City, an attorney, CPA, HOA, or other appropriate professional.

The Bottom Line

Operating a short-term rental in San Diego in 2026 requires more than strong demand and a good property.

Owners need to consider:

STRO licensing
License tier
License availability
TOT registration and rates
Rental Unit Business Tax
Local contact requirements
Signage
Guest policies
Reporting
HOA restrictions

The most important time to investigate these rules is before buying the property or committing to a vacation-rental revenue projection.

Frequently Asked Questions

Do I need a license to Airbnb my property in San Diego?

If the property is within the City of San Diego and qualifies as Short-Term Residential Occupancy, the City's STRO licensing rules generally require the appropriate license.

Can I buy a vacation rental and take over the seller's STRO license?

Do not assume so. The City states that STRO licenses are not transferable between hosts or property locations.

Are new Tier 3 licenses available in San Diego?

As of the City's August 28, 2026 update, Tier 3 applications were open and 808 licenses were listed as remaining available. Availability can change.

Are Tier 4 Mission Beach licenses currently available?

As of the City's August 28, 2026 update, Tier 4 applications were closed and the City listed zero licenses as remaining available.

What is the minimum stay for a Tier 3 or Tier 4 rental?

The City's current STRO guidance requires a two-night minimum guest stay for Tier 3 and Tier 4.

What is San Diego's current transient occupancy tax rate?

San Diego currently uses three geographic TOT zones with rates of 11.75%, 12.75%, and 13.75%. The applicable rate depends on the property's location.

Can my property manager be the STRO host?

The City's current application guidance says the host must be a natural person with the legal right to occupy the dwelling and permit STRO use. A property management company can serve as the local contact.

Does an STRO license override HOA restrictions?

No. City licensing and private HOA restrictions are separate. Owners need to comply with both.

How long does a San Diego STRO license last?

The City currently states that STRO licenses expire two years after issuance and may be renewed if applicable requirements are met.

Considering a San Diego Vacation Rental?

Before buying, converting, or changing the management of a San Diego vacation rental, it is important to understand the property's specific regulatory and operating situation.

Nancy's Vacation Rentals can provide a property-specific evaluation that looks at location, vacation-rental potential, management strategy, competitive positioning, and practical operating considerations.

Request a complimentary property analysis from Nancy's Vacation Rentals.

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Research Updated: September 2026. Primary sources reviewed include the City of San Diego Office of the City Treasurer STRO program, City TOT/TMD guidance, City Rental Unit Business Tax information and STRO host operating requirements. Municipal rules and fees can change; verify current requirements before relying on this article for a transaction or operating decision.