Alameda County property record for 3845 Lux Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,194 sqft · built 1950 |
| Lot Size | 0.125 acres (5,460 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $580,000 (Jul 2015) |
| Tax Bill | $8,969 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 84B-570-90 |
| Primary APN | 84B-570-90 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,194 sqft Living Area |
| 1st Floor Area | 1,194 sqft |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,460 sqft (0.125 acres) |
| Street Address | 3845 LUX AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3412 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00023 BLK: 0002 TR: 0887 |
| Legal Subdivision | TRACT 887 EDEN |
| Legal Tract | 0887 |
| Legal Block | 2 |
| Legal Lot Number | 23 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 430700 |
3845 Lux Ave is owned and occupied by two individuals who bought it in July 2015.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3845 LUX AVE, CASTRO VALLEY, CA 94546-3412 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 28, 2015 · Amount on File |
| Deed Sale | Jul 28, 2015 · Amount on File |
| Prior Sale | Jul 2, 1999 · Amount on File |
| Deed Document Number | 2015207495 |
| Prior Transfer Date | Nov 11, 2009 |
| Prior Transfer Doc | 0000364906 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 3845 LUX AVE, CASTRO VALLEY, CA 94546-3412 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 3845 LUX AVE, CASTRO VALLEY, CA 94546-3412 |
| Document Number | 0000272007 |
|---|---|
| Date | Oct 14, 2020 |
| Instrument | 2020272007 |
| Name | QUICKEN LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 301 Months |
| Due | Nov 1, 2045 |
The 2025 property tax bill for 3845 Lux Ave was $8,969 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 | $700,285 (+0.99%) Land $210,094 Building $497,191 | ||
| 2025 | $8,969.00 Homeowner's exemption | $693,419 Land $205,975 Building $487,444 | |
| 2023 | $8,546.00 Homeowner's exemption | $659,928 Land $197,978 Building $461,950 | $837,450 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3845 Lux Ave in Zone X, an area of moderate flood risk, though there have been 1 flood claim nearby since 1998.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 1 (1998) |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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 3845 Lux 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 97% of the US · lower than 97.8% 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 938 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 · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile, Unwired, Verizon.
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