San Mateo County property record for 50 W 3rd Ave, San Mateo, CA 94402
| Property Type | Quadplex |
|---|---|
| Details | 6 bd · 4 ba · 5,563 sqft · built 1949 |
| Lot Size | 0.103 acres (4,500 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,060,000 (Mar 2000) |
| Tax Bill | $23,162 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-093-160 |
| Primary APN | 034-093-160 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 16 Rooms |
| Units | 4 Units |
| Stories | 3 Stories |
| Building Area | 5,563 sqft Living Area |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1949 |
| Architectural Style | Quadruplex |
| Lot Area | 4,500 sqft (0.103 acres) |
| Lot Dimensions | 90 ft deep x 50 ft wide |
| View / Lot | Corner |
| Parking Spaces | 4 Parking Spaces |
| Street Address | 50 W 3RD AVE, W |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1582 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Local Zoning Code | R50000 |
| Legal Description | LOT 14 BLOCK B & SWLY 10 FT OF LOT 13 BLOCK B SUB OF BLOCKS A B C BAYWOOD RSM 17/19 20 CITY OF SAN MATEO |
| Legal Subdivision | BAYWOOD |
| Legal Block | B,A |
| Legal Lot Number | 14,13 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 5 |
| Census Block | 5003 |
| Census Tract | 606400 |
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 Company Names on Record |
|---|---|
| Mailing Address | 4107 EDISON ST, SAN MATEO, CA 94403-5143 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 22, 2000 · Amount on Record |
| Deed Sale | Mar 22, 2000 · Amount on Record |
| Deed Document Number | 200032943 |
| Last Transfer Date | Aug 16, 2007 |
| Transfer Doc | 0000042188 |
| Record Updated | Sep 20, 2026 |
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 |
|---|---|---|
| 2026 | $1,661,766 (+2%) Land $830,883 Building $830,883 | |
| 2025 | $23,162.00 (+4.53%) | $1,629,184 (+4.04%) Land $814,592 Building $814,592 |
| 2023 | $22,159.00 (-6.56%) | $1,565,922 Land $782,961 Building $782,961 |
| 2022 | $23,715.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 8 units insured incl. 8 condo units |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 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 | 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 570 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Etheric Networks Fixed Wireless · Fiber in parts of the area | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, GeoLinks, Sonic Telecom, Unwired.
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