San Mateo County property record for 3901 Donner St, San Mateo, CA 94403
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 1,497 sqft · built 1941 |
| Lot Size | 0.117 acres (5,080 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,199,500 (Dec 2024) |
| Tax Bill | $15,858 (2025) |
| Deeds & Mortgages | Jul 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 042-156-010 |
| Primary APN | 042-156-010 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,497 sqft Living Area |
| 1st Floor Area | 1,497 sqft |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1941 |
| Architectural Style | Duplex Single |
| Lot Area | 5,080 sqft (0.117 acres) |
| Lot Dimensions | 96 ft deep x 53 ft wide |
| View / Lot | Corner |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3901 DONNER ST |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-4530 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R20000 |
| Legal Description | LOT 1 BLOCK 1 LAUREL PARK UNIT NO 1 RSM 23/41 CITY OF SAN MATEO |
| Legal Subdivision | LAUREL PARK UNIT NO 1 |
| Legal Block | 1 |
| Legal Lot Number | 1 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 607200 |
3901 Donner St, a duplex, is owned and occupied by two individuals who bought it in December 2024.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3363 VILLA ROBLEDA DR, MOUNTAIN VIEW, CA 94040-4549 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Dec 5, 2024 · Amount on File |
| Deed Sale | Dec 5, 2024 · Amount on File |
| Deed Document Number | 202465554 |
| Prior Transfer Date | Jul 6, 2018 |
| Prior Transfer Doc | 0000053126 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 9, 2018 |
| Property Address | 3901 DONNER ST, SAN MATEO, CA 94403-4530 |
| Document Number | 0000053126 |
| Instrument Date | Jul 6, 2018 |
| Instrument | 53126 |
| Transaction Type | Transfer |
| Record Updated | Jan 14, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Irrevocable Trust |
| Address | 373 PINE LN #A122 LOS ALTOS CA 940221665, A122, LOS ALTOS, CA 94022-1665 |
The 2025 property tax bill for 3901 Donner St was $15,858 with a homeowner's exemption.
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 | $1,223,490 (+2%) Land $1,121,490 Building $102,000 | |
| 2025 | $15,858.00 | $1,199,500 Land $1,099,500 Building $100,000 |
| 2023 | $3,845.00 (+2.95%) | $92,332 Land $34,174 Building $58,158 |
| 2022 | $3,735.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 3901 Donner St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1986.
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 Claims | 1 (1986) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1986 · Severe Storms & 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.
The area around 3901 Donner St 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 785 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile.
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