Alameda County property record for 18650 Crest Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1 ba · 1,484 sqft · built 1963 |
| Lot Size | 0.253 acres (11,000 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $5,187 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84B-370-7-17 |
| Primary APN | 84B-370-7-17 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,484 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Custom Design |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Tar & Gravel |
| Lot Area | 11,000 sqft (0.253 acres) |
| Garage Type | Carport |
| Carport | Carport |
| Heating System | Floor/Wall Furnace |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 18650 CREST AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-2730 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | LOT: 00017 BLK: 0007 AR: 084B PAGE: 0370 |
| Legal Subdivision | VALLEY CREST GARDENS |
| Legal Lot Number | 15 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 430600 |
18650 Crest Ave is owner-occupied and held in a trust since July 2006.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 18650 CREST AVE, CASTRO VALLEY, CA 94546-2730 |
| 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 Transfer Date | Jul 27, 2006 |
| Transfer Doc | 0000327970 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 18650 Crest Ave was $5,187 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 | $375,658 (+0.13%) Land $114,797 Building $267,861 | ||
| 2025 | $5,187.00 Homeowner's exemption | $375,156 Land $112,547 Building $262,609 | |
| 2023 | $4,966.00 Homeowner's exemption | $360,590 Land $108,177 Building $252,413 | $875,250 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18650 Crest Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1995.
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 | 3 in force |
| Nearby Flood Claims | 2 (1995–1998) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Jan 1998 · 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.
Wildfire risk around 18650 Crest Ave is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 522 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Etheric Networks, T-Mobile, Unwired, Verizon.
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