San Mateo County property record for 419 Williams Pl, San Mateo, CA 94401
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 870 sqft · built 1929 |
| Lot Size | 0.078 acres (3,380 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $750,000 (Jul 2005) |
| Tax Bill | $13,069 (2025) |
| Deeds & Mortgages | Jul 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 032-173-190 |
| Primary APN | 032-173-190 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Building Area | 870 sqft Living Area |
| 1st Floor Area | 870 sqft |
| Family Room | Family Room |
| Year Built | Built 1929 |
|---|---|
| Effective Year Built | Effective 1929 |
| Lot Area | 3,380 sqft (0.078 acres) |
| Garage Area | 170 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 419 WILLIAMS PL |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94401-2419 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 18 ALBERT A MEYER SUB POR BLK 8 OF WESTERN ADD SAN MATEORSM 16/7 |
| Legal Subdivision | WESTERN ADD SAN MATEO |
| Legal Block | 8 |
| Legal Lot Number | 18 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 605901 |
Source: San Mateo County records, as of July 15, 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 | 419 WILLIAMS PL, SAN MATEO, CA 94401-2419 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 8, 2005 · Amount on Record |
| Deed Sale | Jul 8, 2005 · Amount on Record |
| Prior Sale | Dec 22, 1998 · Amount on Record |
| Deed Document Number | 2005113748 |
| Prior Transfer Date | Aug 12, 1994 |
| Prior Transfer Doc | 0000134871 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 419 WILLIAMS PL, SAN MATEO, CA 94401-2419 |
| Transaction Type | Mortgage |
| Record Updated | Aug 5, 2022 |
| Title Company | ORANGE COAST TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000070141 |
|---|---|
| Date | Jul 21, 2020 |
| Instrument | 2020-070141 |
| Name | OWNING CORPORATION |
|---|---|
| Type | Non-Lending Institution |
| Address | ORANGE, CA 92868 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 1, 2050 |
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | San Mateo City |
| Elementary School District | San Mateo-Foster City Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,045,418 (+2%) Land $522,709 Building $522,709 | ||
| 2025 | $13,069.00 (+4.06%) | $1,024,920 (+4.04%) Land $512,460 Building $512,460 | |
| 2023 | $12,559.00 (+1.05%) | $985,122 Land $492,561 Building $492,561 | $978,210 |
| 2022 | $12,428.00 |
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 September 10, 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 | Not rated no burnable land within 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 | CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people · EPA ID CA4110008 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2025 |
| Lead | 4 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 694 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile, Unwired.
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