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
Monday–Thursday:
7:30 AM–5:30 PM
Friday:
8:00 AM–5:00 PM
Updates:
The Building Department will be operating with half staff the week of October 27-31, 2025 due to staff training.
The City of Ontario is proud to announce that it has partnered with Symbium to establish a Real Time Permitting platform. Effective August 4th, 2025, contractors and homeowners seeking to pull permits will be able to apply for approval of Residential Solar and Energy Storage Systems via the Symbium portal. The use of the new platform is highly encouraged as it expedites the approval and permit issuance.
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
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 ExtensionsAdditional 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