Alameda County property record for 4178 David St, Castro Valley, CA 94546 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,018 sqft · built 1948 |
| Lot Size | 0.139 acres (6,050 sqft) |
| Owner | Company Name on File |
| Tax Bill | $1,667 (2025) |
| Deeds & Mortgages | Nov 2022 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-669-131 |
| Primary APN | 84C-669-131 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,018 sqft Living Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,050 sqft (0.139 acres) |
| Parking Spaces | 1 Parking Space |
| Street Address | 4178 DAVID ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4624 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00001 BLK: 0001 TR: 0773 ;LOT: 00002 BLK: 0001 TR: 0773 |
| Legal Subdivision | 773 EDEN TOWNSHIP |
| Legal Tract | 0773 |
| Legal Block | 1 |
| Legal Lot Number | 1,2 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 430800 |
Source: Alameda County records · APN 84C-669-131
Assessment roll updated August 5, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 4178 DAVID ST, CASTRO VALLEY, CA 94546-4624 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4178 DAVID ST, CASTRO VALLEY, CA 94546-4624 |
| Transaction Type | Mortgage |
| Record Updated | Dec 16, 2022 |
| Title Company | ATLAS TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 4178 DAVID ST, CASTRO VALLEY, CA 94546-4624 |
| Document Number | 0000187713 |
|---|---|
| Date | Nov 21, 2022 |
| Instrument | 2022187713 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | DUBLIN, CA 94568 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 302 Months |
| Due | Dec 31, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6.75% |
| Change Frequency | Monthly |
| Min Rate At Change | 3% |
| Max Rate At Change | 6.75% |
| Index | Other |
| Max Rate | 17% |
Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $69,143 (-7.38%) Land $37,257 Building $38,886 | ||
| 2025 | $1,667.00 (+6.59%) Homeowner's exemption | $74,649 (+4.04%) Land $36,526 Building $38,123 | |
| 2023 | $1,564.00 Homeowner's exemption | $71,751 Land $35,108 Building $36,643 | $978,390 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 777 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Sonic Telecom | Fiber | 10,000 / 10,000 |
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: AT&T, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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