City of Rialto

Rialto says a building permit is required for construction, repair, alteration, and removal of any building or structure, including accessory buildings, electrical work, gazebos, HVAC repairs or alterations, masonry walls, patios, plumbing, pools, and retaining walls.

• Exempt Rialto does not appear to publish a single comprehensive local list of permit-exempt work on its Building & Safety pages
• Exempt Rialto does publish limited cases where a plan is not required for residential miscellaneous submittals
• Exempt Electrical panel replacement or upgrade at the same location
• Exempt Replacement of a water heater, like for like, at the same location

Note: These are published as plan exemptions, not express permit exemptions. Rialto's FAQ otherwise states permits are required broadly for construction, repair, alteration, and removal work, so applicants should confirm permit-exempt status with Building & Safety before proceeding without a permit.

Building code

As of March 21, 2026, Rialto states that permit applications and plans submitted after December 31, 2025 are subject to the 2025 California Building Standards effective January 1, 2026.

Permit validity

Rialto's OPC status definitions say a permit becomes expired if plans are not resubmitted within 180 days or if the permit has no approved inspection completed in 1 year. Rialto's current extension form states plan review applications are deemed abandoned after 180 days unless pursued in good faith or extended; building permits become invalid if work is not commenced within 12 months after issuance, or if work is suspended or abandoned for 12 months after commencement. Written extensions may be granted by the building official.

Owner-builder

Rialto requires an owner-builder declaration. The city form tracks California Business and Professions Code sections 7031.5 and 7044 and allows owner-builder status when the owner performs the work or uses the owner's own employees and the improvement is not intended or offered for sale, or when the owner contracts exclusively with licensed contractors.

Contractor requirements

Rialto's declaration form requires licensed-contractor information, and the OPC page directs contractors to add state and city business license information to their OPC account. The pre-construction checklist also states contractors, subcontractors, special inspectors, testing labs, suppliers, and vendors working or distributing in Rialto must secure a City of Rialto business license.

1. 01
   Create an OPC account and log in. Rialto instructs applicants to register for an OPC account before applying or linking an existing permit.
2. 02
   Submit the building permit application through OPC. The city's application asks for project address, APN, scope of work, valuation, owner, contractor, designer, and applicant contact information.
3. 03
   Upload project documents. Required materials vary by scope, but Rialto commonly requires plans, site/floor plans, declaration or owner-builder information, and project-specific forms or checklists from the Building & Safety forms library.
4. 04
   The application is screened, then routed for planning approval and multi-department review as needed. Rialto's status definitions show permits may be routed to Planning before official review.
5. 05
   Respond to corrections and resubmit revised plans if required.
6. 06
   Pay plan check and permit issuance fees through OPC when invoiced. Rialto accepts online payment through OPC.
7. 07
   After approval and fee payment, permit status changes to Issued and inspections can begin.

Typical processing time: Rialto states patio, block wall, and re-roof permits may often be reviewed and issued within 10 business days. Other projects have a tentative 20-business-day plan review and a tentative 10-business-day permit processing period after plan approval. The OPC status page separately states permits in review have a 30-day review time; applicants should expect timing to vary by scope and department routing.

Source: City of Rialto Community Development Department, Building & Safety Division ↗

Rialto directs applicants to pay through OPC. The FAQ lists ECheck, MasterCard, and Visa as accepted online payment methods. The Building & Safety counter also notes the payment processing counter closes daily at 5 PM.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

• Inspections are requested through OPC (online)
• 909-820-2505 (phone)

Scheduling deadline

Inspection timeframes are a.m. (8:00am-12:00pm) or p.m. (12:00pm-5:00pm).

Inspection hours

Rialto asks applicants to schedule 2 to 3 business days in advance; if next-day inspection is available, the cut-off is 3:00 p.m..

Typical sequence: Rialto publishes that all work must be inspected before it is covered up, the approved plans must be on site, and the project proceeds after permit issuance through the applicable rough and final inspections required by the scope of work.

Source: City of Rialto Community Development Department, Building & Safety Division ↗