Alameda County property record for 18658 Crest Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,968 sqft · built 1980 |
| Lot Size | 0.155 acres (6,753 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $940,000 (Dec 2019) |
| Tax Bill | $12,890 (2025) |
| Deeds & Mortgages | Sep 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84B-370-7-25 |
| Primary APN | 84B-370-7-25 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,968 sqft Living Area |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,753 sqft (0.155 acres) |
| Street Address | 18658 CREST AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-2730 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00013 BLK: 0007 AR: 084B PAGE: 0370 ;LOT: 00014 BLK: 0007 AR: 084B PAGE: 0370 |
| Legal Subdivision | VALLEY CREST GARDENS |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 430600 |
18658 Crest Ave is owned and occupied by two individuals who bought it in December 2019.
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18658 CREST AVE, CASTRO VALLEY, CA 94546-2730 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 19, 2019 · Amount on File |
| Deed Sale | Dec 19, 2019 · Amount on File |
| Prior Sale | Nov 5, 2003 · Amount on File |
| Deed Document Number | 2019260021 |
| Prior Transfer Date | Sep 19, 2007 |
| Prior Transfer Doc | 0000420535 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 18658 CREST AVE, CASTRO VALLEY, CA 94546-2730 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | ORANGE COAST TITLE |
| Name | Verified Name |
|---|---|
| Address | 18658 CREST AVE, CASTRO VALLEY, CA 94546-2730 |
| Document Number | 0000235762 |
|---|---|
| Date | Sep 16, 2020 |
| Instrument | 2020235762 |
| Name | QUICKEN LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Oct 1, 2050 |
The 2025 property tax bill for 18658 Crest Ave was $12,890 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 | $1,041,570 (+1.32%) Land $314,571 Building $733,999 | ||
| 2025 | $12,890.00 Homeowner's exemption | $1,028,011 Land $308,403 Building $719,608 | |
| 2023 | $12,415.00 Homeowner's exemption | $988,098 Land $296,429 Building $691,669 | $1,176,570 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18658 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 18658 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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