Alameda County property record for 18477 Center St, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,640 sqft · built 1956 |
| Lot Size | 0.165 acres (7,200 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $765,000 (Jul 2006) |
| Tax Bill | $12,880 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-885-8 |
| Primary APN | 84C-885-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,640 sqft Living Area |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1957 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,200 sqft (0.165 acres) |
| Street Address | 18477 CENTER ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-1609 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00013 BLK: 000C TR: 1564 |
| Legal Tract | 1564 |
| Legal Block | C |
| Legal Lot Number | 13 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 430200 |
18477 Center St is owned and occupied by two individuals who bought it in July 2006.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18477 CENTER ST, CASTRO VALLEY, CA 94546-1609 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Jul 24, 2006 · Amount on File |
| Deed Sale | Jul 24, 2006 · Amount on File |
| Deed Document Number | 2006284220 |
| Prior Transfer Date | Sep 19, 1994 |
| Prior Transfer Doc | 0000313658 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 18477 Center St was $12,880 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 | $1,038,348 (+1.32%) Land $313,604 Building $731,744 | ||
| 2025 | $12,880.00 Homeowner's exemption | $1,024,854 Land $307,456 Building $717,398 | |
| 2023 | $12,405.00 Homeowner's exemption | $985,067 Land $295,520 Building $689,547 | $1,026,360 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18477 Center St 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 18477 Center St is moderate, ranking above 48% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 48% of the US · lower than 71% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 412 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 in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, T-Mobile.
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