San Bernardino County property record for 10436 Helena Ave, Montclair, CA 91763
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,404 sqft · built 1988 |
| Lot Size | 0.122 acres (5,300 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $2,457 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1009-461-35-0000 |
| Primary APN | 1009-461-35-0000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,404 sqft Living Area |
| Gross Area | 1,851 sqft |
| 1st Floor Area | 690 sqft |
| 2nd Floor Area | 714 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Modern |
| Construction Type | Frame |
| Roof Material | Tile |
| Lot Area | 5,300 sqft (0.122 acres) |
| View / Lot | Average |
| Garage Type | Attached |
| Garage Area | 447 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Patio/Porch |
| Porch Area | 362 sqft |
| Patio Area | 362 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 10436 HELENA AVE |
|---|---|
| City | MONTCLAIR |
| State | CA |
| Zip | 91763-4300 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 13324 LOT 15 |
| Legal Tract | 13324 |
| Legal Block | 1 |
| Legal Lot Number | 15 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 306 |
10436 Helena Ave is owned and occupied by an individual who acquired it in August 2002.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 10436 HELENA AVE, MONTCLAIR, CA 91763-4300 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Sole Owner |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Aug 14, 2002 |
| Transfer Doc | 0000440026 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 10436 Helena Ave was $2,457.
Source: San Bernardino County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Montclair City |
| Secondary School District | Chaffey Joint Union High School District (09 - 12) |
| Elementary School District | Ontario-Montclair School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $226,831 (+2%) Land $56,767 Building $170,064 | |
| 2025 | $2,457.00 | $222,383 Land $55,654 Building $166,729 |
| 2023 | $2,334.00 (+1.35%) | $213,748 Land $53,493 Building $160,255 |
| 2022 | $2,303.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10436 Helena Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 10436 Helena Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 | MONTE VISTA WD serves 56,390 people · EPA ID CA3610029 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| 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 386 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Starlink Satellite | 280 / 30 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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