San Mateo County property record for 339 Warren Rd, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,960 sqft · built 1950 |
| Lot Size | 0.15 acres (6,543 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,610,000 (Apr 2021) |
| Tax Bill | $34,597 (2025) |
| Deeds & Mortgages | Apr 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 032-032-160 |
| Primary APN | 032-032-160 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,960 sqft Living Area |
| 1st Floor Area | 1,710 sqft |
| Family Room | Family Room |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Lot Area | 6,543 sqft (0.15 acres) |
| Lot Dimensions | 133 ft deep x 51 ft wide |
| Garage Area | 520 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 339 WARREN RD |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1037 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10010 |
| Legal Description | 53.42 FT X 49.67 FT F & R MEAS CENTRAL PTN OF LOT 172 SAN MATEO PARK SUB NO 2 RSM D/55 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO PARK |
| Legal Lot Number | 172 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 605800 |
339 Warren Rd is owned and occupied by two individuals who bought it in April 2021.
Source: San Mateo County records, as of August 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 339 WARREN RD, SAN MATEO, CA 94402-1037 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Apr 27, 2021 · Amount on File |
| Deed Sale | Apr 27, 2021 · Amount on File |
| Prior Sale | May 15, 2014 · Amount on File |
| Deed Document Number | 202166997 |
| Prior Transfer Date | Feb 8, 2008 |
| Prior Transfer Doc | 0000066103 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Apr 27, 2021 |
| Property Address | 339 WARREN RD, SAN MATEO, CA 94402-1037 |
| Document Number | 0000066997 |
| Map Reference | MB D PG 55 |
| Instrument Date | Apr 13, 2021 |
| Instrument | 2021-066997 |
| Transaction Type | Transfer |
| Record Updated | May 21, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $15,921.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 339 WARREN RD, SAN MATEO, CA 94402-1037 |
| Document Number | 0000066998 |
|---|---|
| Date | Apr 27, 2021 |
| Instrument | 2021-066998 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.5% |
| Type Change Date | May 1, 2028 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 7.5% |
| Index | Other |
| Max Rate | 7.5% |
The 2025 property tax bill for 339 Warren Rd was $34,597.
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 | $2,920,615 (+2%) Land $1,584,354 Building $1,336,261 | |
| 2025 | $34,597.00 | $2,863,349 Land $1,553,289 Building $1,310,060 |
| 2023 | $33,247.00 (+2.64%) | $2,752,164 Land $1,492,974 Building $1,259,190 |
| 2022 | $32,392.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 339 Warren Rd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2012.
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 | 3 in force |
| Nearby Flood Claims | 1 (2012) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 2012 · rainfall accumulation |
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 339 Warren Rd 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 561 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · 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 |
May also be available: Etheric Networks, T-Mobile.
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