Ontario Thinks Business home
Rolled plans on a clipboard with a tape measure
Government

Building

The Building Department protects the lives and safety of Ontario residents and visitors through timely and professional plan review and inspection services to ensure buildings and projects are built and developed in compliance.

City Hall

The Building Counter is closed for staff meetings every Tuesday from 7:30-9:00 am and the first Thursday of every month from 8:00-10:00 am

MondayThursday:
7:30 AM–5:30 PM

Friday:
8:00 AM–5:00 PM

Mission

The Building Department contributes to Ontario's economic development and protect the lives and safety of Ontario's residents and visitors by providing timely and professional plan review and inspection services to ensure buildings and projects are built and developed in compliance with all applicable municipal and state code requirements.

Resources

Daily Inspection Schedule (Coming Soon)

multiple papers with plans on top of oe another, Text "Building Permit" A tape ruler

Fee Updates

Beginning January 3rd, 2024, there will be a fee for multiple extension requests on the same plan check / permit. The first request made will not be charged a fee. If additional extensions are requested and granted, a fee of $150 for Residential and $300 for Commercial / Industrial permits will be required.

Email Us to Request Permit Extensions

Additional Contact Information

The Building Counter is closed for staff meetings every Tuesday from 7:30-9:00 am and the first Thursday of every month from 8:00-10:00 am


Inspectors
(909) 395-2362

Plan Check
(909) 395-2023

Counter Services
(909) 395-2023