logo image

Hercules, California

Regulations >
California >
Hercules

Want to see how Hercules compares to other top cities in California?  Explore all city regulations in California. →

C

Hercules, CA

Challenging To Investors

Local STR Agent

Local STR Agent

Hercules STR Expert
Hercules, California skyline

STR Regulations for Hercules, California

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

Yes, short-term rentals are allowed in Hercules, CA, but they are governed by Contra Costa County regulations since Hercules does not have its own city-specific STR ordinance.

As of the current regulatory framework, STR operations in Hercules must comply with Contra Costa County Ordinance 2020-12. Hosts must obtain a county-issued STR permit before operating, and all operations are subject to strict occupancy limits, operational standards, and tax requirements. Accessory Dwelling Units (ADUs) are specifically prohibited from being used as short-term rentals in Hercules.

What do Airbnb hosts actually earn in Hercules?

Hercules hosts earn a median $26,155/year with $120 ADR and 69% occupancy.

Top performers pull in $32,258+ per year.

See the full Hercules market breakdown →

Starting a Short-Term Rental Business in Hercules

Step 1: Verify Property Eligibility

  • Confirm your property is not an ADU (these are prohibited from STR use in Hercules)
  • Ensure you have only one STR per lot
  • Verify the property is not located in a building containing five or more dwelling units
  • Check that overnight occupancy limits can be accommodated (2 persons per bedroom + 2 additional persons)

Step 2: Obtain Required Permits

  • Apply for a Contra Costa County STR permit (mandatory before any operations)
  • Consider whether you need a discretionary permit to deviate from standard regulations
  • Obtain any necessary business licenses from Hercules Finance Department

Step 3: Prepare for Operations

  • Ensure adequate off-street parking (1 space for 3 or fewer bedrooms, 2 spaces for 4+ bedrooms)
  • Establish operational procedures to comply with noise, traffic, and gathering limits
  • Prepare to collect and remit Transient Occupancy Tax

Required Documents, Permits, Licenses, and Guidelines

Permits and Licenses

Contra Costa County STR Permit:

  • Requirement: Mandatory before operating any STR
  • Type: Ministerial permit (if complying with standard regulations)
  • Discretionary Permit: Available for deviations from standard rules (requires public hearing process)

Hercules Business License:

  • Requirement: Standard business licensing for commercial operations
  • Issuing Authority: Hercules Finance Department
  • Contact: (510) 799-8200

Documentation Requirements

For STR Permit Application:

  • Property ownership documentation or tenant authorization
  • Detailed property information (bedroom count, parking availability)
  • Operational plan demonstrating compliance with regulations
  • Contact information for responsible party

For Business License:

  • Completed business license application
  • Proof of property ownership or lease agreement
  • General liability insurance documentation

Operational Documentation

  • Guest information package with local rules and contact details
  • Emergency contact procedures
  • Noise and behavior guidelines for guests

Specific Regulations for Short-Term Rentals

Contra Costa County STR Regulations (Applicable to Hercules)

Rental Day Limits:

  • Non-hosted STRs: Maximum 90 days per calendar year
  • Hosted STRs: Maximum 180 days per calendar year
  • Absolute maximum for any STR: 180 days per calendar year
  • These limits are strictly enforced

Occupancy Standards:

  • Overnight guests: Maximum 2 persons per bedroom + 2 additional persons
  • Children under 12 do not count toward total guest count
  • Maximum gathering size: 20 total persons at any time

Property Limitations:

  • Maximum one STR per lot
  • No STRs allowed in buildings with five or more dwelling units
  • Accessory Dwelling Units (ADUs) specifically prohibited from STR use

Parking Requirements:

  • STRs with 3 or fewer bedrooms: Minimum 1 off-street parking space for guests
  • STRs with 4 or more bedrooms: Minimum 2 off-street parking spaces for guests
  • Parking spaces must be available and clearly designated

Operational Standards (Non-Negotiable):

  • No excessive traffic inconsistent with residential use
  • No excessive noise inconsistent with residential use
  • No obstruction of roads or public ways
  • No signage advertising the STR
  • No special events (weddings, conferences, commercial events)
  • Compliance with all local noise and behavior ordinances

Discretionary Permit Options:

  • Applications may be submitted for deviations from standard regulations
  • Processed as land use permits with public hearing process
  • Possible for: Extended rental periods, reduced parking, increased guest limits
  • Note: Deviations from operational standards are not permitted under any circumstances

Hercules Municipal Requirements

Transient Occupancy Tax (TOT):

  • Tax rate: 10% of rent charged
  • Applies to all transient occupancies (less than 30 days)
  • Monthly remittance required using city forms
  • Separate from county requirements

ADU Restrictions:

  • All ADUs in Hercules must be rented for terms exceeding 30 days
  • Short-term rentals (less than 30 days) are explicitly prohibited for ADUs
  • This applies to both attached and detached ADUs

State-Level California Considerations

Generally Applicable State Laws:

  • Health and Safety Code compliance for rental units
  • Fair housing law compliance in all operations
  • Consumer protection requirements for online platform listings
  • Insurance requirements (property and liability coverage recommended)

Contact Information

Contra Costa County (Primary STR Authority)

STR Permit Information:

  • Website: County STR Program
  • Code Enforcement Division: Contact for permit enforcement and violations
  • Application Process: Contact county planning department for permit applications

City of Hercules

Finance Department (TOT and Business Licenses):

  • Address: 111 Civic Drive, Hercules, CA 94547
  • Phone: (510) 799-8200
  • Website: Hercules Finance
  • Services: Business licenses, TOT collection, general financial inquiries

Community Development Department (ADU Information):

  • Address: 111 Civic Drive, Hercules, CA 94547
  • Phone: (510) 799-8200
  • Website: Hercules Planning
  • Services: ADU regulations, zoning compliance, development standards

Code Enforcement (Operational Issues):

  • Phone: (510) 799-8200
  • Services: Noise complaints, parking violations, general code enforcement

Links to Source Pages

County-Level Regulations

  • Contra Costa County STR Summary: https://www.contracosta.ca.gov/DocumentCenter/View/67827/STR_Summary

Hercules City Resources

  • Hercules Transient Occupancy Tax: https://www.herculesca.gov/government/finance/transient-occupancy-tax
  • Hercules ADU Regulations: https://www.herculesca.gov/government/planning/planning-applications/accessory-dwelling-units

Reference Municipal Codes (for California context)

  • Berkeley STR Ordinance: https://berkeley.municipal.codes/BMC/23.314
  • Berkeley STR Information: https://berkeleyca.gov/city-services/livable-neighborhoods/short-term-rentals

Important Notes for Investors:

  1. Regulatory Monitoring: While current regulations are well-defined, STR laws are evolving. Monitor both county and city updates regularly.

  2. Permit Processing: Factor in processing times for county STR permits when planning investment timelines.

  3. Compliance Costs: Budget for permit fees, TOT remittance, and potential discretionary permit costs if standard compliance isn't feasible.

  4. ADU Considerations: If considering ADU development for STR use in Hercules, note that this is specifically prohibited by municipal code.

  5. County vs. City: Remember that STR operations are primarily regulated by Contra Costa County, while tax collection and business licensing occur at the city level.

This guide provides a comprehensive foundation for STR investment decisions in Hercules, CA, based on current regulatory requirements. Always verify the most current information directly with governing authorities before making investment commitments.

Next step

Found a property in Hercules?

Paste any address and get estimated revenue, cash-on-cash return, and comparable STR performance in under 5 minutes. 3 free analyses per day.

Ask the AI Advisor about Hercules →

Free brief

Get the free Hercules STR Investment Brief

Revenue data, top neighborhoods, seasonal trends, and the key regulations for Hercules, California in one email.

Hercules

Market Saturation Score

036912
Moderate Saturation
6/ 12
months with declining YoY revenue
5–7 declining months: moderate saturation risk - market may be nearing capacity.
View Full Hercules Market Analysis →

Photos of Hercules

Overview of Hercules

Hercules is a city in western Contra Costa County, California. Situated along the coast of San Pablo Bay, it is located in the eastern region of the San Francisco Bay Area, about 10 miles (16 km) north of Berkeley, California. As of the 2020 census, its population was 26,016, according to the United States Census Bureau. The site of Hercules was first developed in 1881 as a manufacturing facility of the California Powder Works for the production of its patented dynamite formulation, Hercules powder. In 1882, the Hercules Powder Company was incorporated and assumed responsibility for the Hercules site. It was one of several explosive manufacturers that were active along the Pinole shoreline in the late 19th to the mid-20th century. The small company town that grew up near the facility subsequently became known as "Hercules", and was incorporated at the end of 1900. Starting in the 1970s, Hercules was heavily redeveloped as suburban bedroom community that lies along the I-80 corridor in Western Contra Costa County. It has a very ethnically diverse population.

Want to know if a property in Hercules is a good investment?

Enter an address to get instant revenue potential and comps.

startup landing logo

Copyright © 2026 HomeRun Analytics, Inc

Explore

HomeCountry ExplorerProperty Analyzer

Resources

Market ComparatorRegulationsBlog

Trusted by STR investors in 50+ U.S. states

Built by investors, for investors

STRProfitMap® is a registered trademark of HomeRun Analytics, Inc