Alameda County property record for 4124 Omega Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 3,006 sqft · built 1981 |
| Lot Size | 0.21 acres (9,160 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,420,000 (Jan 2022) |
| Tax Bill | $17,660 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage Jan 2022 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-707-19-1 |
| Primary APN | 84C-707-19-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 3,006 sqft Living Area |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1994 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 9,160 sqft (0.21 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4124 OMEGA AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4539 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 0000A BLK: PM: 0102 PAGE: 0055 ;LOT: 00011 BLK: 000E TR: 0721 |
| Legal Tract | 0721 |
| Legal Lot Number | A |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 430800 |
4124 Omega Ave is owned and occupied by two individuals who bought it in January 2022.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4124 OMEGA AVE, CASTRO VALLEY, CA 94546-4539 |
| 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 |
|---|---|
| Jan 7, 2022 | Intrafamily Transfer, Transfer · Conventional Mortgage FIDELITY LENDING |
| Jan 7, 2022 | Grant Deed, Transfer TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 7, 2022 · Amount on File |
| Deed Sale | Jan 7, 2022 · Amount on File |
| Prior Sale | Aug 2, 1994 |
| Deed Document Number | 20225250 |
| Prior Transfer Date | Dec 12, 2007 |
| Prior Transfer Doc | 0000426623 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jan 7, 2022 |
| Property Address | 4124 OMEGA AVE, CASTRO VALLEY, CA 94546-4539 |
| Document Number | 0000005249 |
| Map Reference | MB 11 PG 42&43 |
| Instrument Date | Dec 29, 2021 |
| Instrument | 2022005249 |
| Transaction Type | Transfer |
| Record Updated | Feb 2, 2022 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 6747 SUNNYSLOPE AVE, CASTRO VALLEY, CA 94552-9760 |
| Document Number | 0000005251 |
|---|---|
| Date | Jan 7, 2022 |
| Instrument | 2022005251 |
| Name | FIDELITY LENDING |
|---|---|
| Type | Lending Institution |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Feb 1, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jan 7, 2022 |
| Property Address | 4124 OMEGA AVE, CASTRO VALLEY, CA 94546-4539 |
| Document Number | 0000005250 |
| Map Reference | MB 11 PG 42&43 |
| Instrument Date | Dec 29, 2021 |
| Instrument | 2022005250 |
| Transaction Type | Transfer |
| Record Updated | Feb 2, 2022 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Amount | Amount on Record |
|---|---|
| Tax | $1,562.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 4124 OMEGA AVE, CASTRO VALLEY, CA 94546-4539 |
The 2025 property tax bill for 4124 Omega Ave was $17,660 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 | Castro Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,423,000 (-0.49%) Land $429,000 Building $1,001,000 | ||
| 2025 | $17,660.00 Homeowner's exemption | $1,430,000 Land $429,000 Building $1,001,000 | |
| 2023 | $16,232.00 | $1,306,000 Land $391,800 Building $914,200 | $1,415,250 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4124 Omega Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 4124 Omega Ave is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 93% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 704 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 · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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