Online Services

Online Service Center

Apply for Permits Online

• Apply for Permits - Water heater replacements and reroof permits - Restricted to Homeowners. HVAC, electrical services, water heaters and reroofs - Restricted to Contractors with the following licenses (C10 – Electrical, C20-HVAC, C36 – Water Heater Only, C39 – Reroof). 
• Other Permits - Apply Online

Research Permit History

• Instructions (PDF)
• Research Permit History

View Archived Plans

• Call 209-577-5232, ext. 1 to reserve the Research Room
• Reserve the Research Room

Check the Status of a Commercial Project

• Status Report (PDF)
• Status Report Instructions (PDF)

Submit a Neighborhood Complaint

• Report a Code Violation

Download an Assessor's Platt Map

• Map Book

Find Zoning Information

• Explore Modesto (GIS)
• Instructions to Find Zoning Information (PDF)

Lookup Codes Online

• California Building Code
• California Electrical Code
• California Energy Code
• California Green Building Code
• California Mechanical Code
• California Plumbing Code
• California Residential Building Code