Alameda County property record for 4253 David St, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,277 sqft · built 1952 |
| Lot Size | 0.124 acres (5,400 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,410,000 (Jul 2026) |
| Tax Bill | $12,237 (2025) |
| Deeds & Mortgages | Jul 2026 Sale & Mortgage Jul 2022 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-1053-8 |
| Primary APN | 84C-1053-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,277 sqft Living Area |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,400 sqft (0.124 acres) |
| Street Address | 4253 DAVID ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4743 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00008 BLK: 0005 TR: 1191 |
| Legal Subdivision | TRACT 1191 FILED JULY 3 1952 |
| Legal Tract | 1191 |
| Legal Block | 5 |
| Legal Lot Number | 8 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 430800 |
Source: Alameda County records, as of September 17, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 4253 DAVID ST, CASTRO VALLEY, CA 94546-4743 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Husband and Wife |
| Date | Document |
|---|---|
| Jul 27, 2026 | Grant Deed, Transfer · Conventional Mortgage GOLDEN 1 CREDIT UNION |
| Jul 15, 2022 | Deed of Trust, Mortgage · Conventional Mortgage NMSI INC |
| Jun 25, 2021 | Grant Deed, Construction Loan · Construction Mortgage FJM PRIVATE MORTGAGE FUND LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 27, 2026 · Amount on Record |
| Deed Sale | Jul 27, 2026 · Amount on Record |
| Prior Sale | Jun 25, 2021 · Amount on Record |
| Deed Document Number | 202696667 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 27, 2026 |
| Property Address | 4253 DAVID ST, CASTRO VALLEY, CA 94546-4743 |
| Document Number | 0000096667 |
| Instrument Date | Jul 22, 2026 |
| Instrument | 202696667 |
| Transaction Type | Transfer |
| Record Updated | Sep 9, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $156,651.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4253 DAVID ST, CASTRO VALLEY, CA 94546-4743 |
| Document Number | 0000096668, |
|---|---|
| Date | Jul 27, 2026 |
| Instrument | 202696668 |
| Name | GOLDEN 1 CREDIT UNION |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Aug 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.13% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4253 DAVID ST, CASTRO VALLEY, CA 94546-4743 |
| Transaction Type | Mortgage |
| Record Updated | Aug 10, 2022 |
| Title Company | DOMA TITLE |
| Name | Verified Name |
|---|---|
| Address | 4253 DAVID ST, CASTRO VALLEY, CA 94546-4743 |
| Document Number | 0000127803 |
|---|---|
| Date | Jul 15, 2022 |
| Instrument | 2022127803 |
| Name | NMSI INC |
|---|---|
| Type | Mortgage Company |
| Address | ROWLAND HEIGHTS, CA 91748 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 1, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jun 25, 2021 |
| Property Address | 4253 DAVID ST, CASTRO VALLEY, CA 94546-4743 |
| Document Number | 0000229200 |
| Map Reference | MB 33 PG 16 |
| Instrument Date | Jun 21, 2021 |
| Instrument | 2021229200 |
| Transaction Type | Construction Loan |
| Record Updated | Jul 14, 2021 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $979.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 16724 MEEKLAND AVE, SAN LORENZO, CA 94580-1728 |
| Document Number | 0000229201 |
|---|---|
| Date | Jun 25, 2021 |
| Instrument | 2021229201 |
| Name | FJM PRIVATE MORTGAGE FUND LLC |
|---|---|
| Type | Mortgage Company |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $1,005,000 (+4.32%) Land $301,500 Building $703,500 | ||
| 2025 | $12,237.00 (+3.82%) | $963,353 (+4.04%) Land $289,006 Building $674,347 | |
| 2023 | $11,787.00 | $925,955 Land $277,786 Building $648,169 | $904,410 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
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 442 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks, Sonic Telecom, T-Mobile, Unwired.
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