Alameda County property record for 1848 Crescent Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,571 sqft · built 1951 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $3,837 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 415-220-49 |
| Primary APN | 415-220-49 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,571 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | L-Shape |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 7,500 sqft (0.172 acres) |
| Lot Dimensions | 150 ft deep x 50 ft wide |
| Heating System | Floor/Wall Furnace |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1848 CRESCENT AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-7028 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00049 BLK: AR: 0415 PAGE: 0220 |
| Legal Subdivision | KNOX |
| Legal Block | I |
| Legal Lot Number | 18 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 431200 |
1848 Crescent Ave is owner-occupied and held in a trust since May 1998.
Source: Alameda County records, as of August 26, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 1848 CRESCENT AVE, CASTRO VALLEY, CA 94546-7028 |
| 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 | 2 Names on Deed |
|---|---|
| Last Transfer Date | May 13, 1998 |
| Transfer Doc | 0000164719 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1848 Crescent Ave was $3,837.
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 | $244,957 (-0.83%) Land $123,909 Building $128,048 | ||
| 2025 | $3,837.00 Homeowner's exemption | $247,017 Land $121,480 Building $125,537 | |
| 2023 | $3,652.00 Homeowner's exemption | $237,426 Land $116,763 Building $120,663 | $890,730 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1848 Crescent Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 5 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 1848 Crescent 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 98% of the US · lower than 98.4% 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 589 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, Sonic Telecom, T-Mobile, Verizon.
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