Alameda County property record for 25529 Crestfield Dr, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,605 sqft · built 1998 |
| Lot Size | 0.173 acres (7,526 sqft) |
| Owner | Trust Name on File |
| Last Sale | $408,500 (Apr 1998) |
| Tax Bill | $9,073 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 417-286-58 |
| Primary APN | 417-286-58 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,605 sqft Living Area |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1998 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,526 sqft (0.173 acres) |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 25529 CRESTFIELD DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-5541 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00052 BLK: TR: 6814 |
| Legal Tract | 6814 |
| Legal Lot Number | 52 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 435103 |
25529 Crestfield Dr is owner-occupied and held in a trust since April 2015.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 25529 CRESTFIELD DR, CASTRO VALLEY, CA 94552-5541 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 Sale | Apr 28, 1998 · Amount on File |
| Deed Sale | Apr 28, 1998 · Amount on File |
| Deed Document Number | 1998140564 |
| Last Transfer Date | Apr 1, 2015 |
| Transfer Doc | 0000107223 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 25529 Crestfield Dr was $9,073 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 | $658,119 (+0.93%) Land $199,340 Building $465,779 | ||
| 2025 | $9,073.00 Homeowner's exemption | $652,079 Land $195,432 Building $456,647 | |
| 2023 | $8,880.00 Homeowner's exemption | $626,762 Land $187,844 Building $438,918 | $1,553,940 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 25529 Crestfield Dr in Zone X, an area of minimal flood risk.
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 |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 4 in force |
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.
Wildfire risk around 25529 Crestfield Dr is moderate, ranking above 66% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 66% of the US · above 41% of California |
|---|---|
| Wildfire Likelihood | 0.2% 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 441 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Networks.
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