Learn how to look up property permit history in San Bernardino County. Avoid costly unpermitted work mistakes in both cities and unincorporated areas.
To check building permits in San Bernardino County, use the Land Use Services EZ Online Permitting portal for unincorporated areas, or contact the specific city's building department if the property lies within municipal limits. Verifying these records before closing helps you identify unpermitted additions or open violations that could affect your insurance, safety, and financing.
Buying a home with unpermitted renovations in San Bernardino County can lead to forced demolitions, denied homeowners insurance claims, and unexpected structural failures after closing. Discovering a beautiful converted garage, a newly built patio cover, or a finished basement can feel like a major selling point, but if the local building department has no record of the work, you could inherit a costly legal and financial liability.
Because San Bernardino County is the largest county by land area in the contiguous United States, navigating its regulatory landscape requires understanding exactly who holds the records for a specific address. A mistake here can lead to looking in the wrong database, missing critical red flags, and closing on a home with hidden hazards.
San Bernardino County features some of the most diverse geography and extreme weather conditions in California. From the heavy snow loads of the San Bernardino Mountains (including Lake Arrowhead and Big Bear) to the intense desert heat and wind of the Mojave Desert, buildings in this region must withstand unique environmental pressures.
When property owners bypass the permitting process, they bypass critical safety inspections designed to ensure structures can survive these local elements. Unpermitted work commonly found in the county includes:
Some insurance providers have documented declining coverage or denying claims for property damage that originates from unpermitted structural, electrical, or plumbing work. Furthermore, if a local code enforcement officer discovers unpermitted construction, they can issue a notice of violation, assess code enforcement penalties, and require you to either bring the work up to current building codes or completely demolish it at your own expense.
Before searching for building permits, you must determine whether the property is located in an unincorporated area of San Bernardino County or within the boundaries of one of the county's 24 incorporated cities.
If the property is located within an incorporated city (such as Fontana, Rancho Cucamonga, Ontario, Victorville, or the City of San Bernardino), that specific municipality's building department administers and stores the permit history. The county government will not have these records.
If the property is located in an unincorporated community (such as Joshua Tree, Crestline, Oak Hills, Landers, or Mentone), the San Bernardino County Land Use Services Department is the governing authority.
To find out which agency holds the records for a property, you can use the following methods:
| Method | What to Look For |
|---|---|
| Property Tax Bill | Look at the "Tax Rate Area" or the specific taxing agencies listed. If a city name is listed as the primary taxing municipality, the property is incorporated. |
| County Assessor Portal | Search the parcel on the San Bernardino County Assessor’s online property lookup. The parcel details will explicitly state whether the property is located in an incorporated city or unincorporated county land. |
| Physical Address Clues | Do not rely solely on the mailing address. A home may have a "Joshua Tree" or "Victorville" mailing address but actually sit on unincorporated land outside municipal borders. |
If your target property lies within unincorporated territory, the permit history is managed by the San Bernardino County Land Use Services Department. They host a digital public access system that allows buyers to research permit histories online.
The county utilizes an online database known as the EZ Online Permitting system, which is powered by the Accela Citizen Access platform.
If the property is older (typically built before the mid-1990s), some historical permit documents may not be digitized or viewable on the public portal. In this case, you must submit a formal public records request under the California Public Records Act.
You can submit this request online through the county's primary portal or by contacting the Land Use Services Department directly. Be specific in your request, asking for "all historical building permits, certificates of occupancy, and code enforcement files" for the target address or APN.
If the property is located within city limits, you must bypass the county database and use the city's specific building department resources. Below is an overview of how permit searches work in some of the county's largest municipalities:
If a specific city does not have an active, searchable public database, you will need to call or visit their Building and Safety Department in person, or submit a records request through the City Clerk.
A critical step in your due diligence is comparing the County Assessor's property characteristics with the actual building permit history and the physical reality of the home.
The County Assessor’s primary job is to value property for taxation purposes. To do this, they maintain records of square footage, bedroom counts, and bathroom counts. However, a match between the physical house and the assessor's database does not guarantee the work was legally permitted.
Sometimes, an assessor's office updates its records based on aerial photography, MLS listings, or physical appraisals to adjust property taxes, even if the construction was done without a permit.
To verify legality, cross-reference the two records:
When reviewing a permit history report, the status of each permit is just as important as its existence. Look closely at the status field for each entry:
An open, expired, or unfinaled permit is a cloud on the property's history. It means the work was never legally completed in the eyes of the jurisdiction. If you buy a home with an open permit, you may be required to hire a licensed contractor to complete the work, bring it up to current building codes (which may have changed since the permit was first issued), and pay for a new round of inspections.
In the desert expanses of San Bernardino County, manufactured homes are highly common. If you are researching permits for a manufactured home, the process involves a unique jurisdictional split.
While local foundations and utilities are permitted through the county or city building departments, the construction standards for the manufactured structure itself are governed by federal regulations [HUD].
When checking permits for these properties, you must verify:
If your research reveals unpermitted additions, converted spaces, or unfinaled permits, you have several avenues to protect yourself before completing the transaction.
Before you submit an offer or waive your inspection contingencies on a home in San Bernardino County, contact a licensed home inspector or a structural engineer to walk through the property with you. They can compare the physical structure with the municipal permit records you pull, helping you identify discrepancies before they become your financial burden.
The portals differ by jurisdiction, but the method is the same everywhere. For the general process — finding the right authority, reading permit statuses, and spotting work that was never permitted — see finding the right permit office anywhere.
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Decks built in mountain communities like Lake Arrowhead or Big Bear may not be engineered to support heavy winter snow loads, creating a real risk of structural collapse if the work was never reviewed through the permitting process. Unpermitted work bypasses the safety inspections specifically designed to make sure a structure can survive the county's snow, heat, and wind extremes.
The manufactured structure itself is governed by federal regulations rather than local permits, but the local building department still issues a separate permit for the foundation system -- often called an "HCD" permit, signifying compliance with California's Department of Housing and Community Development. Any additions to a manufactured home, like an attached carport or sunroom, still need their own local building permits, and unpermitted additions are particularly risky because they can compromise the structural integrity of the home's original chassis.
In vast desert or mountain areas, rural addresses are sometimes formatted inconsistently in older government systems, so searching by the exact 13-digit Assessor's Parcel Number instead eliminates address-matching errors. This matters most for properties in remote areas like Joshua Tree or Landers, where a mailing address might not even reflect the correct jurisdiction.