Alameda County property record for 21329 Kahlert St, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,172 sqft · built 1959 |
| Lot Size | 0.124 acres (5,406 sqft) |
| Owner | Trust Name on File |
| Last Sale | $78,750 (Aug 2000) |
| Tax Bill | $5,640 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 415-50-20 |
| Primary APN | 415-50-20 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,172 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | L-Shape |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 5,406 sqft (0.124 acres) |
| Lot Dimensions | 101 ft deep x 53 ft wide |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 21329 KAHLERT ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-6215 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00009 BLK: 0003 TR: 1817 |
| Legal Tract | 1817 |
| Legal Block | 3 |
| Legal Lot Number | 9 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 431200 |
21329 Kahlert St is held in a trust since August 2000.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 21329 KAHLERT ST, CASTRO VALLEY, CA 94546-6215 |
| Owner Type | Company |
| Vesting | Trust |
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 | Aug 31, 2000 · Amount on File |
| Deed Sale | Aug 31, 2000 · Amount on File |
| Prior Sale | Jun 4, 1997 · Amount on File |
| Deed Document Number | 2000265025 |
| Prior Transfer Date | Feb 9, 1996 |
| Prior Transfer Doc | 0000040023 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 21329 KAHLERT ST, CASTRO VALLEY, CA 94546-6215 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | CHICAGO TITLE |
| Name | Verified Name |
|---|---|
| Address | 21329 KAHLERT ST, CASTRO VALLEY, CA 94546-6215 |
| Document Number | 0000255867 |
|---|---|
| Date | Oct 1, 2020 |
| Instrument | 2020255867 |
| Name | CALIBER HOME LOANS INC |
|---|---|
| Type | Mortgage Company |
| Address | COPPELL, TX 75019 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Oct 1, 2050 |
The 2025 property tax bill for 21329 Kahlert St was $5,640.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Hayward Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $399,583 (+2%) Land $119,875 Building $279,708 | ||
| 2025 | $5,640.00 | $391,748 Land $117,524 Building $274,224 | |
| 2023 | $5,389.00 | $376,538 Land $112,961 Building $263,577 | $750,240 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21329 Kahlert St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 31 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 31 in force |
| Nearby Flood Claims | 1 (2022) |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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.
The area around 21329 Kahlert St 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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 459 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile, Verizon.
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