Alameda County property record for 4738 Mason St, Pleasanton, CA 94588
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,816 sqft · built 1975 |
| Lot Size | 0.149 acres (6,501 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,125,000 (Sep 2020) |
| Tax Bill | $14,337 (2025) |
| Deeds & Mortgages | Sep 2020 Sale & Mortgage May 2017 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 941-1305-87 |
| Primary APN | 941-1305-87 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,816 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1977 |
| Architectural Style | L-Shape |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 6,501 sqft (0.149 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4738 MASON ST |
|---|---|
| City | PLEASANTON |
| State | CA |
| Zip | 94588-3856 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00052 BLK: TR: 3311 |
| Legal Tract | 3311 |
| Legal Lot Number | 52 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | LIVERMORE-PLEASANTON |
| Census Block Group | 4 |
| Census Block | 4018 |
| Census Tract | 450603 |
4738 Mason St is owned by an individual who bought it in September 2020.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 475 CASCADITA TER, MILPITAS, CA 95035-2406 |
| Owner Type | Individual |
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 |
|---|---|
| Sep 2, 2020 | Grant Deed, Transfer · Conventional Mortgage BANK OF AMERICA NA |
| May 6, 2017 | Deed of Trust, Mortgage MISCELLANEOUS INS CO |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 2, 2020 · Amount on File |
| Deed Sale | Sep 2, 2020 · Amount on File |
| Prior Sale | Sep 9, 1998 · Amount on File |
| Deed Document Number | 2020220242 |
| Prior Transfer Date | Oct 8, 2001 |
| Prior Transfer Doc | 0000392888 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 2, 2020 |
| Property Address | 4738 MASON ST, PLEASANTON, CA 94588-3856 |
| Document Number | 0000220242 |
| Map Reference | MB 77 PG 96 |
| Instrument Date | Aug 18, 2020 |
| Instrument | 2020220242 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 475 CASCADITA TER, MILPITAS, CA 95035-2406 |
| Document Number | 0000220243 |
|---|---|
| Date | Sep 2, 2020 |
| Instrument | 2020220243 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Oct 1, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4738 MASON ST, PLEASANTON, CA 94588-3856 |
| Document Number | 0000104685 |
| Instrument Date | May 6, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jun 15, 2017 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 4738 MASON ST PLEASANTON CA 945883856, PLEASANTON, CA 94588-3856 |
| Document Number | 0000104685 |
|---|---|
| Date | May 11, 2017 |
| Instrument | 104685 |
| Name | MISCELLANEOUS INS CO |
|---|---|
| Address | PO BOX 9810, CALABASAS, CA 91372-0810 |
| Amount | Amount on Record |
|---|
The 2025 property tax bill for 4738 Mason St was $14,337.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Pleasanton City |
| Unified School District | Pleasanton Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,242,067 (+2%) Land $372,620 Building $869,447 | ||
| 2025 | $14,337.00 | $1,217,721 Land $365,316 Building $852,405 | |
| 2023 | $13,893.00 | $1,170,450 Land $351,135 Building $819,315 | $1,255,950 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4738 Mason St in Zone X, an area of moderate flood risk, though there have been 3 flood claims nearby since 1983.
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 | 4 in force |
| Nearby Flood Claims | 3 (1983–1992) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Aug 1992 · other causes |
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 4738 Mason St is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 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 | CITY OF PLEASANTON serves 76,689 people · EPA ID CA0110008 |
|---|---|
| Water Source | Purchased surface water from ZONE 7 WATER AGENCY |
| Last State Inspection | May 2024 |
| Lead | Under 1 ppb (2023–2025) 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.
Source: FCC Broadband Data Collection, based on 629 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 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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