San Mateo County property record for 46 Barneson Ave, San Mateo, CA 94402
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 11 bd · 8 ba · 6,393 sqft · built 1957 |
| Lot Size | 0.234 acres (10,170 sqft) |
| Owner | Company Name on File |
| Last Sale | $4,187,500 (Aug 2015) |
| Tax Bill | $57,874 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-383-180 |
| Primary APN | 034-383-180 |
|---|
| Bedrooms | 11 Beds |
|---|---|
| Full Baths | 8 Baths |
| Total Rooms | 25 Rooms |
| Units | 7 Units |
| Stories | 2 Stories |
| Building Area | 6,393 sqft Living Area |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1957 |
| Architectural Style | Multi-Family |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Type | Flat |
| Roof Material | Built-Up Asphalt |
| Lot Area | 10,170 sqft (0.234 acres) |
| Lot Dimensions | 161 ft deep x 63 ft wide |
| Garage Type | Detached |
| Parking Spaces | 7 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 46 BARNESON AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-2980 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | SWLY 63 FT OF LOT 454 SAN MATEO CITY HOMESTEAD ASSN RSM A/43 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO CITY HOMESTEAD |
| Legal Lot Number | 454 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 606600 |
46 Barneson Ave, a residential property, is owned by a company that bought it in August 2015.
Source: San Mateo County records, as of August 31, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 523 MAYFAIR AVE, SOUTH SAN FRANCISCO, CA 94080-4509 |
| Owner Type | Company |
| Vesting | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 4, 2015 · Amount on File |
| Deed Sale | Aug 4, 2015 · Amount on File |
| Prior Sale | Jul 11, 2014 · Amount on File |
| Deed Document Number | 201581938 |
| Prior Transfer Date | Dec 24, 2013 |
| Prior Transfer Doc | 0000173110 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 46 Barneson Ave was $57,874.
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 | $4,200,000 (-) Land $1,705,000 Building $2,495,000 | |
| 2025 | $57,874.00 | $4,200,000 Land $1,705,000 Building $2,495,000 |
| 2023 | $55,583.00 (+3.47%) | $4,100,000 Land $1,664,477 Building $2,435,523 |
| 2022 | $53,721.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 46 Barneson Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2022.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 1 (2022) |
| Claims Outside the SFHA | 1 of 1 |
| 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.
The area around 46 Barneson Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 906 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 · Fiber in parts of the area | 1,500 / 50 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Unwired, Verizon.
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