Alameda County property record for 21608 Orange Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,197 sqft · built 1948 |
| Lot Size | 0.117 acres (5,100 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $925,000 (Nov 2024) |
| Tax Bill | $11,978 (2025) |
| Deeds & Mortgages | Dec 2025 Mortgage Jul 2023 Construction Loan + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 415-120-16 |
| Primary APN | 415-120-16 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,197 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,100 sqft (0.117 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 21608 ORANGE AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-6340 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00014 BLK: 0001 TR: 0803 |
| Legal Subdivision | 803 EDEN TOWNSHIP |
| Legal Tract | 0803 |
| Legal Block | 1 |
| Legal Lot Number | 14 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 431200 |
21608 Orange Ave is owned and occupied by two individuals who bought it in November 2024.
Source: Alameda County records, as of October 12, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 21608 ORANGE AVE, CASTRO VALLEY, CA 94546-6340 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 |
|---|---|
| Dec 31, 2025 | Deed of Trust, Mortgage · Conventional Mortgage OPTIMUM FIRST INC |
| Jul 14, 2023 | Quit Claim Deed, Transfer · Construction Mortgage KIAVI FUNDING INC |
| Feb 28, 2023 | Affidavit of Death of Joint Tenant, Transfer |
| Aug 27, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 21, 2024 · Amount on File |
| Deed Sale | Nov 21, 2024 · Amount on File |
| Prior Sale | Jul 14, 2023 · Amount on File |
| Deed Document Number | 2024143690 |
| Prior Transfer Date | Jun 7, 2023 |
| Prior Transfer Doc | 0000079904 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 21608 ORANGE AVE, CASTRO VALLEY, CA 94546-6340 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2026 |
| Title Company | WFT NATIONAL TITLE, WFG NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 21608 ORANGE AVE, CASTRO VALLEY, CA 94546-6340 |
| Document Number | 0000167203 |
|---|---|
| Date | Dec 31, 2025 |
| Instrument | 2025167203 |
| Name | OPTIMUM FIRST INC |
|---|---|
| Type | Mortgage Company |
| Address | 7755 CENTER AVE STE 900, HUNTINGTON BEACH, CA 92647 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jan 1, 2056 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 14, 2023 |
| Property Address | 21608 ORANGE AVE, CASTRO VALLEY, CA 94546-6340 |
| Document Number | 0000079904 |
| Map Reference | MB 20 PG 55&56 |
| Instrument Date | Jun 7, 2023 |
| Instrument | 2023079904 |
| Transaction Type | Transfer |
| Record Updated | Aug 14, 2023 |
| Title Company | STEWART TITLE COMPANY-F, STEWART TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 2722 OAKES DR, HAYWARD, CA 94542-1228 |
| Name | Verified Name |
|---|---|
| Address | 25125 SANTA CLARA ST #E285 # E285, E285, PETALUMA, CA 94955 |
| Document Number | 0000079905 |
|---|---|
| Date | Jul 14, 2023 |
| Instrument | 2023079905 |
| Name | KIAVI FUNDING INC |
|---|---|
| Type | Mortgage Company |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Affidavit of Death of Joint Tenant |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Feb 28, 2023 |
| Property Address | 21608 ORANGE AVE, CASTRO VALLEY, CA 94546-6340 |
| Document Number | 0000025028 |
| Map Reference | MB 20 PG 55B-56 |
| Instrument Date | Dec 16, 2022 |
| Instrument | 2023025028 |
| Transaction Type | Transfer |
| Record Updated | Mar 29, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 2722 OAKES DR, HAYWARD, CA 94542-1228 |
| Investor | Possibly a Property Investor |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Aug 27, 2018 |
| Property Address | 21608 ORANGE AVE, CASTRO VALLEY, CA 94546-6340 |
| Document Number | 0000167258 |
| Instrument Date | Aug 23, 2018 |
| Instrument | 167258 |
| Transaction Type | Transfer |
| Record Updated | Sep 14, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 2722 OAKES DR HAYWARD CA 945421228, HAYWARD, CA 94542-1228 |
The 2025 property tax bill for 21608 Orange Ave was $11,978.
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 | $943,500 (+2%) Land $283,050 Building $660,450 | ||
| 2025 | $11,978.00 | $925,000 Land $277,500 Building $647,500 | |
| 2023 | $1,478.00 (+3.5%) Homeowner's exemption | $54,670 (+2%) Land $27,806 Building $26,864 | $683,010 |
| 2022 | $1,428.00 Homeowner's exemption | $53,598 Land $27,261 Building $26,337 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 21608 Orange Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1996.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 15 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 15 in force |
| Nearby Flood Claims | 1 (1996) |
| Most Recent Claim | Dec 1996 · rainfall accumulation |
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 21608 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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