Kern County property record for 12025 Kostopolous Ave, Boron, CA 93516
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 1 ba · 1,944 sqft · built 1951 |
| Lot Size | 0.563 acres (24,540 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $140,000 (Dec 2017) |
| Tax Bill | $1,770 (2025) |
| Deeds & Mortgages | Dec 2017 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 231-361-13-00-4 |
| Primary APN | 231-361-13-00-4 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 1,944 sqft Living Area |
| Gross Area | 1,448 sqft |
| 1st Floor Area | 1,338 sqft |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Duplex Single |
| Construction Type | Frame |
| Lot Area | 24,540 sqft (0.563 acres) |
| Garage Type | Detached |
| Garage Area | 1,200 sqft |
| Parking Spaces | 5 Parking Spaces |
| Porch | Porch |
| Porch Area | 110 sqft |
| Heating System | Floor/Wall Furnace |
|---|
| Account Number | 231361130 |
|---|---|
| Street Address | 12025 KOSTOPOLOUS AVE |
| City | BORON |
| State | CA |
| Zip | 93516 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | C-2 |
| Legal Description | SECTION 32 , TOWNSHIP 11 , RANGE 7 , QUARTER |
| Legal Block | 2 |
| Jurisdiction | KERN CA |
| Township / Civil Division | EAST KERN |
| Census Block Group | 2 |
| Census Block | 2057 |
| Census Tract | 5600 |
Source: Kern County records, as of August 6, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 12025 KOSTOPOLOUS AVE, BORON, CA 93516 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 7, 2017 · Amount on Record |
| Deed Sale | Dec 7, 2017 · Amount on Record |
| Deed Document Number | 2017166027 |
| Prior Transfer Date | Apr 10, 1998 |
| Prior Transfer Doc | 0000077221 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | KERN CA |
| Recording Date | Dec 7, 2017 |
| Property Address | 12025 KOSTOPOLOUS AVE, BORON, CA 93516 |
| Document Number | 0000166027 |
| Instrument Date | Nov 22, 2017 |
| Instrument | 166027 |
| Transaction Type | Transfer |
| Record Updated | Jan 3, 2018 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $154.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 27385 20 MULE BORON CA 93516, BORON, CA 93516 |
Source: Kern County assessment roll, as of August 6, 2026
| Type | Name |
|---|---|
| State | California |
| County | Kern County |
| Unified School District | Muroc Joint Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $121,856 (+2%) Land $5,800 Building $116,056 | |
| 2025 | $1,770.00 (+1.9%) | $119,468 (+4.04%) Land $5,687 Building $113,781 |
| 2023 | $1,737.00 (+5.08%) | $114,830 Land $5,467 Building $109,363 |
| 2022 | $1,653.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective April 30, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 10 policies |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 10 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | BORON CSD serves 2,086 people · EPA ID CA1510002 |
|---|---|
| Water Source | Purchased surface water from ANTELOPE VALLEY E KERN WTR AGY-ROSAMOND |
| Last State Inspection | Oct 2024 |
| Also Mapped Here | DESERT LAKE COMM SERV DIST, ANTELOPE VALLEY EAST KERN WATER AGENCY |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | Arsenic resolved · Jul 2018 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 50 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Race Communications Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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