Overview: Are Short-Term Rentals Allowed in Altadena, CA?

Yes, short-term rentals are explicitly allowed in Altadena, CA. Altadena is located within unincorporated Los Angeles County, and the County's Short-Term Rental Ordinance permits STRs as an accessory use to existing dwelling units in zones that permit residential uses. However, there are specific requirements and limitations that investors must understand before operating.

How to Start a Short-Term Rental Business in This Market

Starting a STR business in Altadena requires following a specific multi-step process mandated by Los Angeles County:

Step 1: Initial Setup Process

1. Contact the Short-Term Rental Unit

• Call (213) 974-2011 or email STRental@ttc.lacounty.gov
• Request a unique six-digit Account Number and Activation Code
• This is a mandatory one-time step for initial account setup

2. Create Your Online Account

• Visit lacountystr.munirevs.com
• Create your account using the Account Number and Activation Code received in Step 1

3. Submit Application and Pay Fees

• Log into your account
• Submit your application for a Short-Term Rental Registration Certificate
• Pay the required registration fee

Step 2: Ongoing Compliance Requirements

Transient Occupancy Tax (TOT) Management

• Collect TOT from guests for all stays 30 consecutive days or less
• Remit TOT payments within 30 days after the rental start date
• Use the online portal at lacountystr.munirevs.com for TOT payments

Required Documents, Permits, Licenses, and Guidelines

Primary Requirements

1. Short-Term Rental Registration Certificate

• Required before renting out any property as a STR
• Must be renewed annually
• Only available for primary residences in unincorporated LA County

2. Business License

• STRs are classified as business activities requiring county business licenses
• Must maintain active business license status
• Renewal required annually

3. Transient Occupancy Tax Registration

• Separate registration required for TOT collection and remittance
• Must be completed before hosting any guests

Documentation and Compliance

• Primary Residence Verification: Property must be your primary residence
• Annual Registration Renewal: STR registration expires yearly
• TOT Monthly Reporting: Must file monthly TOT returns even if no rentals occurred
• Guest Record Keeping: Maintain records of all guest stays and TOT collected

Specific Regulations for Short-Term Rentals

Los Angeles County Level Regulations (Applying to Altadena)

Property Type and Use

• STRs limited to registered primary residences only
• Must be in zones that permit residential uses
• Prohibited in coastal zones (not applicable to landlocked Altadena)
• Accessory use to existing dwelling units only

Rental Limitations

• 90-Day Rule: Maximum 90 days per calendar year for rentals without host present overnight
• Host Presence: When host is present overnight, no day limitations apply
• 30-Day Minimum: Guests staying 30 consecutive days or less are considered short-term
• Primary Residence Requirement: Property must be host's primary residence

Operational Requirements

• Annual Registration: Required for all STR operations
• TOT Collection: Mandatory collection and remittance of Transient Occupancy Tax
• Guest Limits: Number of guests limited per property (specific limits not detailed in provided content)
• Online Platform Compliance: Hosting platforms face penalties up to $1,000 per day for listing unregistered properties

California State Level Regulations

While specific California state STR regulations are not detailed in the provided content, investors should be aware of:

• State tax obligations beyond local TOT
• Potential Agricultural Preserve restrictions if applicable to property location
• Fire safety and emergency access requirements, particularly relevant given Altadena's fire-risk area status

Contact Information for Local Authority

Primary Contact: Los Angeles County Treasurer and Tax Collector

• Short-Term Rentals Unit
• Phone: (213) 974-2011
• Email: STRental@ttc.lacounty.gov
• Business Hours: Monday-Friday, 8:00 AM to 5:00 PM PT
• Website: ttc.lacounty.gov/str/

Additional Contact Information

• Main Office: 320 West Temple Street, Los Angeles, CA 90012
• General Planning: (213) 974-6411, info@planning.lacounty.gov
• Complaint Hotline: (213) 371-1070 (24/7 GovOS Platform)

Online Resources

• STR Portal: lacountystr.munirevs.com/login
• Business License Application: epicla.lacounty.gov/energov_prod/selfservice/Selfservice#/applicationAssistant?sectionName=All&moduleId=10&categoryName=County%20of%20Los%20Angeles%20Business%20License&showTemplates=false

Important Notes and Recent Updates

Disaster-Related Considerations

• Certain STR restrictions may be suspended to provide housing for fire victims
• Contact Business License Section at (213) 974-2011 or businesslicense@ttc.lacounty.gov for fire-related assistance
• Check current disaster recovery resources at planning.lacounty.gov/disaster-recovery/

Compliance Enforcement

• Operating without valid registration certificate results in serious consequences
• Noncompliance fees, administrative fines, and platform listing removal
• Platform-level penalties up to $1,000 per day for unregistered property listings

Source References

1. Los Angeles County Department of Regional Planning - Short-Term Rentals Ordinance: planning.lacounty.gov/long-range-planning/short-term-rentals-ordinance/
2. Los Angeles County Treasurer and Tax Collector - Short-Term Rentals: ttc.lacounty.gov/str/
3. Certified Ordinance Document: file.lacounty.gov/SDSInter/bos/supdocs/196543.pdf
4. STR Terms and FAQs: ttc.lacounty.gov/wp-content/uploads/2024/10/STR-Terms-and-FAQs-1.pdf
5. Short-Term Rentals Ordinance PDF: ttc.lacounty.gov/wp-content/uploads/2024/05/Short-Term-Rental-Ordinance.pdf
6. Unincorporated Areas Map: www.arcgis.com/apps/instant/lookup/index.html?appid=9d20879a1db945b5a6cd7deeacff25be

Note: This guide is based on Los Angeles County regulations that apply to Altadena as an unincorporated area. Always verify current requirements with the County before establishing or operating a short-term rental business, as regulations may be subject to updates and changes.