San Mateo County property record for 3825 Donner St, San Mateo, CA 94403
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2.5 ba · 1,990 sqft · built 1947 |
| Lot Size | 0.115 acres (5,014 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $8,077 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 042-155-160 |
| Primary APN | 042-155-160 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,990 sqft Living Area |
| 1st Floor Area | 1,990 sqft |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | Duplex Single |
| Lot Area | 5,014 sqft (0.115 acres) |
| Lot Dimensions | 82 ft deep x 62 ft wide |
| View / Lot | Corner |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3825 DONNER ST |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-4506 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R20000 |
| Legal Description | LOT 9 LAUREL GARDENS RSM 23/62 CITY OF SAN MATEO |
| Legal Subdivision | LAUREL GARDENS |
| Legal Lot Number | 9 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 607200 |
3825 Donner St, a duplex, is held in a trust since September 1996.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 2566 27TH AVE, SAN FRANCISCO, CA 94116-2908 |
| Owner Type | Company |
| Vesting | Trust |
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 Transfer Date | Sep 3, 1996 |
| Transfer Doc | 0000114657 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 3825 Donner St was $8,077.
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 | $412,058 (+2%) Land $211,313 Building $200,745 | |
| 2025 | $8,077.00 | $403,979 Land $207,170 Building $196,809 |
| 2023 | $8,252.00 (-4.9%) | $388,293 Land $199,126 Building $189,167 |
| 2022 | $8,677.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3825 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 3825 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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