San Mateo County property record for 346 Sonora Dr, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,100 sqft · built 1941 |
| Lot Size | 0.154 acres (6,707 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $2,550,000 (Sep 2021) |
| Tax Bill | $22,566 (2025) |
| Deeds & Mortgages | Dec 2021 Mortgage Sep 2021 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-221-020 |
| Primary APN | 034-221-020 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,100 sqft Living Area |
| Gross Area | 2,760 sqft |
| 1st Floor Area | 1,560 sqft |
| Basement Area | 660 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1941 |
| Lot Area | 6,707 sqft (0.154 acres) |
| Lot Dimensions | 103 ft deep x 65 ft wide |
| Garage Type | Carport |
| Carport | Carport |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 346 SONORA DR |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-2340 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 12 BLOCK 15 ARAGON SUB NO 5 RSM 20/73 74 CITY OF SAN MATEO |
| Legal Subdivision | ARAGON SUB NO 5 |
| Legal Block | 15 |
| Legal Lot Number | 12 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 606500 |
Source: San Mateo County records, as of August 6, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 105 AVILA RD, SAN MATEO, CA 94402-2815 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 8, 2021 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA |
| Sep 8, 2021 | Grant Deed, Transfer NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 8, 2021 · Amount on Record |
| Deed Sale | Sep 8, 2021 · Amount on Record |
| Deed Document Number | 2021129611 |
| Prior Transfer Date | Aug 16, 2016 |
| Prior Transfer Doc | 0000098600 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 346 SONORA DR, SAN MATEO, CA 94402-2340 |
| Transaction Type | Mortgage |
| Record Updated | Oct 18, 2022 |
| Title Company | NORTH AMERICAN TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 105 AVILA RD, SAN MATEO, CA 94402-2815 |
| Document Number | 0000167817 |
|---|---|
| Date | Dec 8, 2021 |
| Instrument | 2021-167817 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Address | HOUSTON, TX 77046 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Dec 8, 2036 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Sep 8, 2021 |
| Property Address | 346 SONORA DR, SAN MATEO, CA 94402-2340 |
| Document Number | 0000129611 |
| Map Reference | MB 20 PG 73&74 |
| Instrument Date | Sep 2, 2021 |
| Instrument | 2021-129611 |
| Transaction Type | Transfer |
| Record Updated | Oct 18, 2022 |
| Title Company | NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| Amount | Amount Recorded |
|---|---|
| Tax | $15,555.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 105 AVILA RD, SAN MATEO, CA 94402-2815 |
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 | $2,922,316 (+55.14%) Land $1,921,316 Building $1,001,000 | ||
| 2025 | $22,566.00 (-25%) | $1,883,644 (-22.64%) Land $1,883,644 | |
| 2023 | $30,089.00 (-1.47%) | $2,435,000 Land $1,695,000 Building $740,000 | $2,164,680 |
| 2022 | $30,539.00 |
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 · 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 | 2 (1979–1998) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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 | 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 727 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 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, Verizon.
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