Alameda County property record for 21470 Orange Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,200 sqft · built 1948 |
| Lot Size | 0.117 acres (5,100 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $11,643 (2025) |
| Deeds & Mortgages | May 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 415-120-28 |
| Primary APN | 415-120-28 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,200 sqft Living Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 5,100 sqft (0.117 acres) |
| Parking Spaces | 1 Parking Space |
| Street Address | 21470 ORANGE AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-6336 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00002 BLK: 0001 TR: 0803 |
| Legal Subdivision | TRACT NO 803 |
| Legal Tract | 0803 |
| Legal Block | 1 |
| Legal Lot Number | 2 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 431200 |
21470 Orange Ave is owned and occupied by an individual who acquired it in November 1996.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21470 ORANGE AVE, CASTRO VALLEY, CA 94546-6336 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Nov 12, 1996 |
| Transfer Doc | 0000304569 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 28, 2021 |
| Property Address | 21470 ORANGE AVE, CASTRO VALLEY, CA 94546-6336 |
| Document Number | 0000199990 |
| Map Reference | MB 20 PG 55&56 |
| Instrument Date | May 11, 2021 |
| Instrument | 2021199990 |
| Transaction Type | Transfer |
| Record Updated | Jun 16, 2021 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $918.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 21470 ORANGE AVE, CASTRO VALLEY, CA 94546-6336 |
| Document Number | 0000199991 |
|---|---|
| Date | May 28, 2021 |
| Instrument | 2021199991 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2051 |
| Document Number | 0000199992 |
|---|---|
| Date | May 28, 2021 |
| Instrument | 2021199992 |
| Name | COMMUNITY HOUSING DEVELOPMENT CORPORATIO |
|---|---|
| Type | Government Agency |
| Address | RICHMOND, CA 94801 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 60 Months |
| Due | May 26, 2026 |
The 2025 property tax bill for 21470 Orange Ave was $11,643 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 | $914,890 (+1.22%) Land $276,567 Building $645,323 | ||
| 2025 | $11,643.00 Homeowner's exemption | $903,820 Land $271,146 Building $632,674 | |
| 2023 | $11,160.00 Homeowner's exemption | $868,733 Land $260,620 Building $608,113 | $875,790 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21470 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 21470 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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures