San Mateo County property record for 821 2nd Ave, San Mateo, CA 94401
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2 ba · 1,838 sqft · built 1938 |
| Lot Size | 0.136 acres (5,904 sqft) |
| Owner | Company Name on Record |
| Last Sale | $100,000 (Aug 1999) |
| Tax Bill | $8,913 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 033-152-130 |
| Primary APN | 033-152-130 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,838 sqft Living Area |
| 1st Floor Area | 1,838 sqft |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1938 |
| Architectural Style | Duplex Single |
| Lot Area | 5,904 sqft (0.136 acres) |
| Lot Dimensions | 118 ft deep x 50 ft wide |
| View / Lot | Corner |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 821 2ND AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94401-2905 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R20000 |
| Legal Description | LOT 15 BLOCK 43 LESS WLY 50 FT BOWIE EST EASTERN ADD TO SAN MATEO RSM A/9 |
| Legal Subdivision | BOWIE EST EASTERN ADD TO SAN MATEO |
| Legal Block | 43 |
| Legal Lot Number | 15 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 606202 |
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 22 N FREMONT ST, SAN MATEO, CA 94401-3237 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 13, 1999 · Amount on Record |
| Deed Sale | Aug 13, 1999 · Amount on Record |
| Prior Sale | Apr 30, 1997 · Amount on Record |
| Deed Document Number | 1999138098 |
| Prior Transfer Date | Jul 10, 1999 |
| Prior Transfer Doc | 0000138098 |
| Record Updated | Oct 29, 2026 |
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 | $466,314 (+2%) Land $241,784 Building $224,530 | |
| 2025 | $8,913.00 (+5.47%) | $457,172 (+4.04%) Land $237,044 Building $220,128 |
| 2023 | $8,451.00 (-3.27%) | $439,424 Land $227,841 Building $211,583 |
| 2022 | $8,737.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 1 (2022) |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 791 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile.
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