How To Search for Ontario Property Records

Ontario is a major Inland Empire city with expanding real estate development. But, before you buy or invest in property in the city, you should always do your due diligence. Reviewing property records is an effective way to do this. They offer valuable insight into details that can help you make informed investment decisions, such as ownership history, assessed values, tax information, liens, foreclosures, zoning classifications, land use restrictions, and building characteristics. In Ontario, property records are considered public information, meaning that they can be viewed or copied by anyone interested in doing so. The key is knowing where to look. We have provided a list of useful resources to help you find different types of Ontario property records below.

San Bernardino County Assessor-Recorder-County Clerk

The San Bernardino County Assessor-Recorder-County Clerk (ARC) is a key resource for Ontario property records. The ARC's office handles several crucial property-related services for the city, including recording and maintaining copies of official land documents, and assessing properties for taxation purposes:

Recorder Services

The Assessor-Recorder-County Clerk (ARC) is the official custodian of deeds, liens, mortgages, reconveyances, covenant restrictions, easements, and other related documents that establish property ownership and record property-related transactions in Ontario. The office provides an Official Records Search tool that you can use to look up these records online by name, document number, document type, date, or book/page number, and also to request (fees may apply). You can also visit the following ARC office locations to access records in person:

• Hall of Records:

  1st Floor, 222 W. Hospitality Lane

  San Bernardino, CA 92415

• High Desert Government Center:

  1st Floor, 15900 Smoke Tree Street

  Hesperia, CA 92345

  The office recommends booking an appointment ahead of your visit to reduce wait times. You can call (909) 387-8306 or (855) 732-2575 (toll free) for inquiries and general assistance.

Assessor Services

In addition to serving as the custodian of official land documents, the San Bernardino County Assessor-Recorder-County Clerk (ARC) is also responsible for discovering, listing, and valuing all property located within the City of Ontario for taxation purposes. The ARC's office provides several online tools (including a Public Assessor Map, an Assessor GIS Dashboard, and various approved third-party platforms) that you can use to look up assessed values, parcel details, ownership data, land use classifications, parcel maps, sales data, and other assessment-related information. Searches on these tools are typically done by parcel number or address (state privacy laws restrict name-based searches for assessment data and property owner names generally do not appear in online search results). You can also contact the following ARC locations for in-person services or general assistance:

• Hall of Records:

  4th Floor, 222 W. Hospitality Lane

  San Bernardino, CA 92415

  Phone: (909) 387-8307

  (877) 885-7654 (toll free)

• Ontario Assessor District Office:

  Suite 210, 8575 Haven Avenue

  Rancho Cucamonga, CA 91730

  Phone: (909) 948-5088

San Bernardino County Auditor-Controller/Treasurer/Tax Collector

The San Bernardino County Auditor-Controller/Treasurer/Tax Collector (ATC) bills and collects property taxes for the City of Ontario and is a valuable resource for tax-related property information, such as tax bills, payment histories, delinquent tax information, and outstanding balances. You can use the office's Property Tax Search tool to look up these records online by parcel number, bill number, address, or tax certificate number. In-person services are also available at the ATC's office, located at 268 W. Hospitality Lane, San Bernardino, CA 92415, and you may call either (909) 387-8308 or (909) 382-3090 for inquiries and general assistance.

San Bernardino County Superior Court

You can find property records tied to legal matters in Ontario, such as foreclosure cases, title disputes, boundary issues, and civil judgments affecting real estate, through the Superior Court of San Bernardino. You can use the court's website to look up case records by name or case number (note: account registration may be required for name-based searches, and fees may apply). You can also search for and obtain copies of records in person at the following courthouse locations:

• San Bernardino District Courthouse:

  247 West Third Street

  San Bernardino, CA 92415-0210

  Phone: (909) 708-8678

• Rancho Cucamonga Courthouse:

  8303 Haven Avenue

  Rancho Cucamonga, CA 91730

  Phone: (909) 708-8678

  This location is the closest to Ontario.

Ontario property records are used to fund essential local government services, such as police and fire protection, emergency response, community health programs, public schools and libraries, public transportation, road maintenance, and parks and recreation. The San Bernardino County Assessor-Recorder-County Clerk (ARC) is responsible for identifying and determining the taxable value of all real property in Ontario, while the San Bernardino County Auditor Controller/Treasurer/Tax Collector (ATC) manages tax billing and collection. Properties are assessed at their fair market value at the time of purchase or construction (for new buildings). Per California law, annual increases to this assessed value are capped at 2%, unless the property is sold or undergoes significant new construction. When either of this happens, the property is reassessed to reflect its current market value, which may result in its taxable value increasing beyond the 2% limit.

Property tax bills are usually mailed out by October every year. Taxes are payable in two installments: the first payment is due on November 1st and becomes delinquent after December 10th, while the second installment is due on February 1st and becomes delinquent after April 10th. There is a 10% penalty for payments made after each due, and additional administrative fees may also be applied. Long-term delinquency can eventually result in the property being sold at a tax-defaulted property sale to recover the owed amounts. You can pay your Ontario property taxes through several options, including online, by mail, over the phone, and in person at the ATC's office. You can contact the office at (909) 387-8308 or (909) 382-3090 for additional information or assistance.

Assessments

The San Bernardino County Assessor-Recorder-County Clerk (ARC) conducts annual assessments of all real property in Ontario to establish each property's taxable value. Property values are determined using standard appraisal methods, including the sales comparison approach (evaluating recent sales of comparable properties), the cost approach (estimating replacement costs minus depreciation), and the income approach (considering the property's income-generating potential).

When a property is newly constructed or purchased in Ontario, it is assessed at its fair market value at the time, and that value comes the property's "base year value". Under Proposition 13, this base year value cannot increase by more than 2% with each subsequent annual assessment unless the property changes ownership or undergoes substantial improvements. In such cases, the property is reassessed at current market value, and a supplemental assessment is usually issued to account for the difference outside the normal annual cycle.

Assessment notices are typically mailed to property owners in early July. These notices outline the assessed and taxable values that would be used to calculate their property taxes for the upcoming year. If you believe that your property has been incorrectly assessed, you may request an informal review with the ARC's office. If the matter cannot be resolved at this level, you can proceed with filing a formal assessment appeal with the San Bernardino County Assessment Appeals Board. The filing window for regular assessments is open from July 2nd to November 30th each year, while appeals for supplemental assessment must be submitted within 60 days of the notice date. You can contact the ARC's Appeals Unit at (909) 382-3275 for general inquiries or assistance with the process.

Appraisals

Ontario assessments work similarly to appraisals. They both determine the fair value of property by comparing similar properties with others in the local area that have sold recently. In cases of odd structures or new construction, the county may call upon an appraiser to help determine the value. Estate planners, courts, and lenders also use appraisals to value real property.

Tax Rates

The median effective property tax rate in Ontario, California, is 1.07%, above the national median of 1.02% but lower than the California state median of 1.21%. The average annual tax bill in the city is $3,406, which is also above the national average of $2,400.

Here's a look at how Ontario's tax rate compares to other counties in California:

• Alameda County 1.45%
• Butte County 1.14%
• Contra Costa County 1.36%
• Fresno County 1.22%
• Kern County 1.42%
• Los Angeles County 1.24%
• Merced County 1.07%
• Orange County 1.14%
• Placer County 1.14%
• Riverside County 1.26%
• Sacramento County 1.19%
• San Diego County 1.21%
• Santa Clara County 1.31%

Exemptions

While Ontario's property tax rates are generally on-par with the rest of the Inland Empire region, actual tax bills are typically above the national average and can represent a significant expense for some homeowners. Thankfully, San Bernardino County offers several tax relief programs designed to ease the burden for qualifying residents. These include:

• Homeowner's Exemption: Reduces a property's taxable value by up to $7,000. Available to any resident who owns and occupies a property as their primary residence.

• Disabled Veteran's Exemption: Provides substantial reductions of up to $200,000 or more in a property's assessed value. Available to veterans with service-related disabilities and their surviving, unmarried spouses.

You can contact the San Bernardino County Assessor-Recorder-County Clerk's Office at (909) 387-8307 for additional information on available tax relief programs assistance with applying for one.

Permits are required for new construction and most remodeling, renovation, and home improvement projects in Ontario. These permits are issued by the Ontario Building Department. Exemptions are usually made for cosmetic updates like painting, replacing floors, or installing kitchen cabinetry, and also for minor repairs and projects that do not affect a building's core structure or major systems. You can submit permit applications, pay fees, upload plans, and schedule inspections online using the city's Accela Citizens Access (ACA) portal. You can also visit the department's Building Counter at 303 East B Street, Ontario, CA 91764, for in-person services or call (909) 395-2023 for inquiries and general assistance.

Common types of permits issued in Ontario include:

• Building Permits: For new construction and additions, renovations, or structural modifications to existing buildings.

• Mechanical Permits: For installing, upgrading, or modifying heating, ventilation, air-conditioning, and cooling (HVAC) units and other mechanical systems

• Plumbing Permits: For installing, replacing, or altering water, sewer, drainage, or other plumbing systems. Also required for installing gas piping.

• Electrical Permits: For installing, altering, or upgrading electrical systems.

When applying for any of these permits, you must submit the proper documentation (building plans, blueprints, contractor licenses, materials lists, etc.). You must also pay the appropriate fee.

Building inspections are part of the permit process, and they ensure that the work complies with local building and safety codes. You can schedule an inspection through the online portal or in person at the office during regular business hours.

Located in the southwestern part of San Bernardino County, Ontario is a principal city in the California Inland Empire area and a major economic engine for the region. The city is home to the Ontario International Airport, one of the busiest cargo hubs in the country, and has positioned itself as a warehousing, distribution, and logistics powerhouse. Ontario is also recognized for its high quality of life, scenic parks, and numerous cultural and recreational landmarks. Key attractions include the Toyota Arena, the Ontario Mills shopping complex (one of California's largest retail and entertainment destinations), the tree-lined Euclid Avenue Historic District, and the Ontario Museum of History & Art.

Ontario, California, has a population of 175,265 residents. The city has 58,170 housing units, with about 96% of these units occupied and 60% owner-occupied. There is a wide range of housing options available, including single-family homes, townhomes, condos, apartment complexes, master-planned communities, and retirement communities, with common housing styles like Ranch, Craftsman, Mediterranean, Spanish Revival, Colonial, Traditional, and Contemporary. The average home value in Ontario, CA, is $661,303, representing a 2.3% decrease from previous years. Keep in mind that actual prices can vary across different parts of the city. Here are examples of home prices in some Ontario neighborhoods:

• Borba Village $792,284
• Creekside $576,696
• Edenglen $617,807
• Ontario Center $546,008
• The Avenue $694,479
• West Haven $793,171

The Ontario, California, real estate market is a balanced market. While prices have cooled compared to the early 2020s, demand remains steady, mostly fueled by the city's central location, logistics-driven growth, and expanding residential development. Homes typically go under contract in around 34 days of listing, with nearly 45% of listed homes selling above their initial asking price.

Searching across multiple government offices and databases to piece together a complete property profile can be time-consuming, but PropertyChecker simplifies the process by pulling key ownership details, tax records, transaction histories, and more into a single, easy-to-use platform. Whether you are buying, investing, or simply doing your due diligence, visit PropertyChecker.com to get the property information you need in minutes.