Alameda County property record for 21475 Orange Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,485 sqft · built 1943 |
| Lot Size | 0.146 acres (6,360 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $305,000 (Apr 2002) |
| Tax Bill | $8,468 (2025) |
| Deeds & Mortgages | Mar 2021 Mortgage Jul 2019 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 415-60-26 |
| Primary APN | 415-60-26 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,485 sqft Living Area |
| Year Built | Built 1943 |
|---|---|
| Effective Year Built | Effective 1943 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,360 sqft (0.146 acres) |
| Street Address | 21475 ORANGE AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-6335 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00002 BLK: TR: 0635 |
| Legal Subdivision | TRACT 635 |
| Legal Tract | 0635 |
| Legal Lot Number | 2 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 431200 |
21475 Orange Ave is owned and occupied by two individuals who acquired it in February 2021.
Source: Alameda County records, as of September 28, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 21475 ORANGE AVE, CASTRO VALLEY, CA 94546-6335 |
| Occupancy | Owner Occupied |
| 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.
| Date | Document |
|---|---|
| Mar 4, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Jul 6, 2019 | Deed of Trust, Mortgage · Line of Credit ILWU CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 9, 2002 · Amount on File |
| Deed Sale | Apr 9, 2002 · Amount on File |
| Deed Document Number | 2002155723 |
| Last Transfer Date | Feb 25, 2021 |
| Transfer Doc | 0000090851 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Mar 4, 2021 |
| Property Address | 21475 ORANGE AVE, CASTRO VALLEY, CA 94546-6335 |
| Document Number | 0000090851 |
| Map Reference | MB 8 PG 42 |
| Instrument Date | Feb 25, 2021 |
| Instrument | 2021090851 |
| Transaction Type | Transfer |
| Record Updated | Aug 22, 2022 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 21475 ORANGE AVE, CASTRO VALLEY, CA 94546-6335 |
| Document Number | 0000090852 |
|---|---|
| Date | Mar 4, 2021 |
| Instrument | 2021090852 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 21475 ORANGE AVE, CASTRO VALLEY, CA 94546-6335 |
| Document Number | 0000131932 |
| Instrument Date | Jul 6, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Jul 29, 2019 |
| Title Company | LAWYERS TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 21475 ORANGE AVE CASTRO VALLEY CA 945466335, CASTRO VALLEY, CA 94546-6335 |
| Document Number | 0000131932 |
|---|---|
| Date | Jul 11, 2019 |
| Instrument | 131932 |
| Name | ILWU CU |
|---|---|
| Type | Credit Union |
| Address | WILMINGTON, CA 90744 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | Jul 10, 2044 |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 21475 Orange Ave was $8,468 with a homeowner's exemption.
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 | $577,033 (+0.78%) Land $137,866 Building $446,167 | ||
| 2025 | $8,468.00 Homeowner's exemption | $572,583 Land $135,163 Building $437,420 | |
| 2023 | $8,061.00 Homeowner's exemption | $550,353 Land $129,916 Building $420,437 | $820,800 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21475 Orange Ave 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 21475 Orange 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 | 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 744 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 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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