California County Zoning

Find zoning, building, and tiny home regulations for California counties.

Understanding Zoning and Regulations

Check local zoning and regulations to ensure your compact home is allowed. Our resources help you decode rules and build with confidence.

Understanding Zoning Codes

Zoning codes determine what you can build and where. They vary significantly between counties and even cities within counties.

Residential vs. Agricultural zones
Minimum lot sizes and setbacks
Height and size restrictions
Accessory dwelling unit (ADU) rules

Tiny Home Regulations

Tiny homes face unique regulatory challenges. Understanding the difference between mobile and permanent structures is crucial.

Mobile vs. permanent tiny homes
RVIA certification requirements
Foundation and anchoring requirements
Utility connection regulations

Building Permits & Codes

Building codes ensure safety and compliance. California follows the International Building Code with state-specific amendments.

California Building Code (CBC)
Energy efficiency requirements
Fire safety regulations
Inspection requirements

California County Codes

Find zoning, building, and tiny home regulations for California counties. Click the links for official resources and codes.

CountyZoning and Regulations
Alameda County
Alpine County
Calaveras County
Colusa County
Contra Costa County
Del Norte County
El Dorado County
Fresno County
Humboldt County
Imperial County
Kern County
Kings County
Lake County
Lassen County
Los Angeles County
Madera County
Marin County
Mariposa County
Mendocino County
Merced County
Modoc County
Mono County
Napa County
Nevada County
Orange County
Placer County
Plumas County
Riverside County
Sacramento County
San Benito County
San Bernardino County
San Diego County
County of San Francisco
San Joaquin County
San Luis Obispo County
Santa Barbara County
Santa Clara County
Santa Cruz County
Shasta County
Sierra County
Siskiyou County
Solano County
Sonoma County
Stanislaus County
Sutter County
Tehama County
Trinity County
Tulare County
Tuolumne County
Ventura County
Yolo County
Yuba County

Frequently Asked Questions

Essential information to help you navigate the complex world of zoning and building regulations.

Pro Tips

Start Early

Begin your research and permit process well before you want to start building. Delays are common in the permitting process.

Build Relationships

Get to know your local planning and building department staff. They can provide valuable guidance and help expedite your project.

Document Everything

Keep detailed records of all communications, permits, and approvals. This will help if issues arise later.

Stay Compliant

Always follow building codes and zoning regulations. Non-compliance can result in fines, forced removal, or legal issues.

California State Resources

California has a comprehensive set of laws and regulations that apply to all counties within the state.

California Building Standards

Official source for California building codes and standards.

Housing & Community Development

Information on housing policies, ADUs, and affordable housing programs.

Energy Commission

Energy efficiency requirements and green building standards.

Budget Planning Guide

Understanding costs and planning your budget for a compact home project.

Typical Cost Breakdown

Base Unit (20-40ft)$28,000 - $45,000
Site Preparation$5,000 - $15,000
Foundation$3,000 - $10,000
Utilities Connection$5,000 - $12,000
Permits & Fees$2,000 - $8,000
Delivery & Installation$3,000 - $7,000
Estimated Total$46,000 - $97,000

Cost-Saving Tips

Do your own site preparation if possible
Bundle permits to save on fees
Consider standard finishes over premium upgrades
Plan utilities connection early to avoid rush charges

Hidden Costs to Consider

Impact fees and utility connection deposits
Engineering and architectural stamps
Landscaping and driveway requirements
Insurance and warranty costs

Building Permits And Process

Navigate the permit process with confidence and avoid costly delays.

Typical Permit Timeline

Pre-Application Meeting

1-2 weeks: Discuss project with planning department.

Submit Application

2-4 weeks: Prepare and submit complete permit application.

Plan Review

4-12 weeks: County reviews plans for code compliance.

Revisions & Resubmit

2-6 weeks: Address any plan check corrections.

Permit Issued

Ready to start construction!

Required Documents

Completed permit application form
Site plan showing property boundaries
Floor plans and elevations
Foundation and structural plans
Electrical, plumbing, and mechanical plans
Energy compliance calculations (Title 24)
Soils and geological reports (if required)

Common Permit Fees

Building Permit$1,5000 - $4,000
Plan Check Fee$800 - $2,000
School/Impact Fees$500 - $5,000
Utility Connection Fees$1,000 - $3,000

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