San Mateo County property record for 515 S Eldorado St, San Mateo, CA 94402
| Property Type | Triplex |
|---|---|
| Details | 6 bd · 6 ba · 4,807 sqft · built 1955 |
| Lot Size | 0.261 acres (11,387 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $955,000 (Nov 2003) |
| Tax Bill | $19,425 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 033-291-270 |
| Primary APN | 033-291-270 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 6 Baths |
| Total Rooms | 12 Rooms |
| Units | 7 Units |
| Stories | 1 Story |
| Building Area | 4,807 sqft Living Area |
| 1st Floor Area | 4,807 sqft |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Triplex |
| Lot Area | 11,387 sqft (0.261 acres) |
| Lot Dimensions | 152 ft deep x 70 ft wide |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 515 S ELDORADO ST |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1327 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Local Zoning Code | RM0000 |
| Legal Description | LOT 10 BLOCK 3 & NWLY 35 FT OF LOT 11 BLOCK 3 EAST SAN MATEORSM 5/55 CITY OF SAN MATEO |
| Legal Subdivision | EAST SAN MATEO |
| Legal Block | 3 |
| Legal Lot Number | 10,11 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 606300 |
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 Individual Names on Record |
|---|---|
| Mailing Address | 2723 BARCLAY WAY, BELMONT, CA 94002-1320 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 5, 2003 · Amount on Record |
| Deed Sale | Nov 5, 2003 · Amount on Record |
| Prior Sale | Mar 10, 1998 |
| Deed Document Number | 2003317278 |
| Last Transfer Date | Nov 25, 2013 |
| Transfer Doc | 0000164126 |
| 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 | $1,384,952 (+2%) Land $870,131 Building $514,821 | |
| 2025 | $19,425.00 (+3.21%) | $1,357,797 (+4.04%) Land $853,070 Building $504,727 |
| 2023 | $18,821.00 (-0.47%) | $1,305,075 Land $819,946 Building $485,129 |
| 2022 | $18,910.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
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 915 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 | 1,500 / 50 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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