Alameda County property record for 21259 Tyee St, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,185 sqft · built 1947 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Trust Name on File |
| Last Sale | $405,000 (Nov 2013) |
| Tax Bill | $6,885 (2025) |
| Deeds & Mortgages | Jun 2019 Line of Credit May 2017 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 415-40-56 |
| Primary APN | 415-40-56 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,185 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1967 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,000 sqft (0.115 acres) |
| Parking Spaces | 1 Parking Space |
| Street Address | 21259 TYEE ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-6233 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00008 BLK: 000B TR: 0787 |
| Legal Tract | 0787 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 431200 |
21259 Tyee St is held in a trust since April 2017.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 2281 ROLLINGWOOD DR, SAN BRUNO, CA 94066-1933 |
| 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.
| Date | Document |
|---|---|
| Jun 5, 2019 | Deed of Trust, Mortgage · Line of Credit CATHAY BANK |
| May 1, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 12, 2013 · Amount on File |
| Deed Sale | Nov 12, 2013 · Amount on File |
| Prior Sale | May 30, 2003 · Amount on File |
| Deed Document Number | 2013357639 |
| Last Transfer Date | Apr 9, 2017 |
| Transfer Doc | 0000095876 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 21259 TYEE ST, CASTRO VALLEY, CA 94546-6233 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000105128 |
|---|---|
| Date | Jun 5, 2019 |
| Instrument | 2019105128 |
| Name | CATHAY BANK |
|---|---|
| Type | Bank |
| Address | EL MONTE, CA 91731 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 1, 2017 |
| Property Address | 21259 TYEE ST, CASTRO VALLEY, CA 94546-6233 |
| Document Number | 0000095876 |
| Instrument Date | Apr 9, 2017 |
| Instrument | 95876 |
| Transaction Type | Transfer |
| Record Updated | May 29, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 2281 ROLLINGWOOD DR SAN BRUNO CA 940661933, SAN BRUNO, CA 94066-1933 |
The 2025 property tax bill for 21259 Tyee St was $6,885.
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 | $506,378 (+2%) Land $151,913 Building $354,465 | ||
| 2025 | $6,885.00 | $496,452 Land $148,935 Building $347,517 | |
| 2023 | $6,586.00 | $477,178 Land $143,153 Building $334,025 | $801,810 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21259 Tyee St in Zone X, an area of moderate flood risk, within 100 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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 100 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 21259 Tyee 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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