Alameda County property record for 19144 Masterson Pl, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,737 sqft · built 1985 |
| Lot Size | 0.158 acres (6,885 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,070,000 (Jun 2019) |
| Tax Bill | $14,871 (2025) |
| Deeds & Mortgages | Jun 2019 Sale Feb 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 85A-6404-62-1 |
| Primary APN | 85A-6404-62-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,737 sqft Living Area |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,885 sqft (0.158 acres) |
| Street Address | 19144 MASTERSON PL |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-5084 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00088 BLK: TR: 4468 ;LOT: 00234 BLK: TR: 4468 |
| Legal Tract | 4468 |
| Legal Lot Number | 88 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 430101 |
19144 Masterson Pl is owned and occupied by two individuals who bought it in June 2019.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 19144 MASTERSON PL, CASTRO VALLEY, CA 94552-5084 |
| 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.
| Date | Document |
|---|---|
| Jun 7, 2019 | Grant Deed, Transfer CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Feb 20, 2018 | Deed of Trust, Mortgage · Line of Credit ALLIANT CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 7, 2019 · Amount on File |
| Deed Sale | Jun 7, 2019 · Amount on File |
| Deed Document Number | 2019107191 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jun 7, 2019 |
| Property Address | 19144 MASTERSON PL, CASTRO VALLEY, CA 94552-5084 |
| Document Number | 0000107191 |
| Instrument Date | Jun 5, 2019 |
| Instrument | 107191 |
| Transaction Type | Transfer |
| Record Updated | Jul 26, 2019 |
| Title Company | CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Amount | Amount on Record |
|---|---|
| Tax | $1,177.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 19144 MASTERSON PL CASTRO VALLEY CA 945525084, CASTRO VALLEY, CA 94552-5084 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 19144 MASTERSON PL, CASTRO VALLEY, CA 94552-5084 |
| Document Number | 0000140072 |
| Instrument Date | Feb 20, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Jul 31, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 19144 MASTERSON PL CASTRO VALLEY CA 945525084, CASTRO VALLEY, CA 94552-5084 |
| Document Number | 0000140072 |
|---|---|
| Date | Jul 17, 2018 |
| Instrument | 140072 |
| Name | ALLIANT CU |
|---|---|
| Type | Credit Union |
| Address | CHICAGO, IL 60666 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jul 16, 2048 |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 19144 Masterson Pl was $14,871 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 | $1,210,456 (+1.41%) Land $365,237 Building $852,219 | ||
| 2025 | $14,871.00 Homeowner's exemption | $1,193,584 Land $358,075 Building $835,509 | |
| 2023 | $14,331.00 Homeowner's exemption | $1,147,242 Land $344,172 Building $803,070 | $1,313,280 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 19144 Masterson Pl in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2017.
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 | 2 in force |
| Nearby Flood Claims | 2 (2017–2022) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 19144 Masterson Pl is high, ranking above 76% of the US, with a 0.5% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 76% of the US · above 52% of California |
|---|---|
| Wildfire Likelihood | 0.5% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 411 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
May also be available: Etheric Networks.
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