San Mateo County property record for 306 Sonora Dr, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,640 sqft · built 1936 |
| Lot Size | 0.141 acres (6,131 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $7,444 (2025) |
| Deeds & Mortgages | Dec 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-221-120 |
| Primary APN | 034-221-120 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,640 sqft Living Area |
| Gross Area | 2,220 sqft |
| 1st Floor Area | 1,640 sqft |
| Basement Area | 580 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1936 |
|---|---|
| Effective Year Built | Effective 1936 |
| Lot Area | 6,131 sqft (0.141 acres) |
| Lot Dimensions | 102 ft deep x 60 ft wide |
| Garage Type | Basement |
| Garage Area | 580 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 306 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 2 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 | 2 |
| 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 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 | 306 SONORA DR, SAN MATEO, CA 94402-2340 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Oct 24, 2023 |
| Transfer Doc | 0000068234 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Dec 27, 2023 |
| Property Address | 306 SONORA DR, SAN MATEO, CA 94402-2340 |
| Document Number | 0000068234 |
| Map Reference | MB 20 PG 73&74 |
| Instrument Date | Oct 24, 2023 |
| Instrument | 2023-068234 |
| Transaction Type | Transfer |
| Record Updated | Jan 26, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 306 SONORA DR, SAN MATEO, CA 94402-2340 |
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 | $516,568 (+2%) Land $181,180 Building $335,388 | ||
| 2025 | $7,444.00 (-2.57%) | $506,440 (+4.04%) Land $177,628 Building $328,812 | |
| 2023 | $7,640.00 (+2.23%) Homeowner's exemption | $486,777 Land $170,732 Building $316,045 | $2,314,890 |
| 2022 | $7,473.00 |
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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