Santa Clara County property record for 21431 Bertram Rd, San Jose, CA 95120
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,131 sqft · built 1927 |
| Lot Size | 0.146 acres (6,348 sqft) |
| Owner | Individual Name on File |
| Last Sale | $98,000 (Sep 2011) |
| Tax Bill | $2,335 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 583-18-020 |
| Primary APN | 583-18-020 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,131 sqft Living Area |
| Gross Area | 852 sqft |
| 1st Floor Area | 852 sqft |
| Year Built | Built 1927 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 6,348 sqft (0.146 acres) |
| Lot Dimensions | 138 ft deep x 46 ft wide |
| Porch | Porch |
| Cooling System | None |
|---|
| Street Address | 21431 BERTRAM RD |
|---|---|
| City | SAN JOSE |
| State | CA |
| Zip | 95120-4323 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RR-H1 |
| Legal Subdivision | LAKE ALMADEN PROPERTIES |
| Legal Block | C |
| Legal Lot Number | 46 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 2 |
| Census Block | 2048 |
| Census Tract | 511911 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the New Almaden listed 1966 · 6 contributing resources · National Historic Landmark (designated 1961) · NRIS 66000236 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
21431 Bertram Rd is owned by an individual who bought it in September 2011.
Source: Santa Clara County records, as of July 27, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 6609 MOUNT HOPE DR, SAN JOSE, CA 95120-1935 |
| Owner Type | Individual |
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 Sale | Sep 23, 2011 · Amount on File |
| Deed Sale | Sep 23, 2011 · Amount on File |
| Deed Document Number | 201121332868 |
| Prior Transfer Date | Mar 15, 2006 |
| Prior Transfer Doc | 0018856911 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 21431 Bertram Rd was $2,335.
Source: Santa Clara County assessment roll, as of July 27, 2026
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Unified School District | San Jose Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $184,575 (+2%) Land $102,487 Building $82,088 | |
| 2025 | $2,335.00 | $180,957 Land $100,478 Building $80,479 |
| 2023 | $2,229.00 (+0.41%) | $173,931 Land $96,577 Building $77,354 |
| 2022 | $2,220.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21431 Bertram Rd in Zone D, where flood risk has not been studied, within 100 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective January 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone D undetermined · not studied |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 18 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 18 in force |
| Nearby Flood Claims | 14 (1983–2023) |
| Most Recent Claim | Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
Wildfire risk around 21431 Bertram Rd is high, ranking above 82% of the US, with a 0.6% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 82% of the US · above 60% of California |
|---|---|
| Wildfire Likelihood | 0.6% 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 | SAN JOSE WATER private · serves 1,039,920 people · EPA ID CA4310011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Mar 2026 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | Treatment failure resolved · Jun 2023 |
|---|---|
| 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 119 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Starlink Satellite | 280 / 30 |
May also be available: Etheric Networks.
No cell data coverage reported
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