San Mateo County property record for 525 S Eldorado St, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,210 sqft · built 1922 |
| Lot Size | 0.157 acres (6,832 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,899 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 033-291-260 |
| Primary APN | 033-291-260 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,210 sqft Living Area |
| Gross Area | 1,800 sqft |
| 1st Floor Area | 1,210 sqft |
| Basement Area | 590 sqft |
| Family Room | Family Room |
| Year Built | Built 1922 |
|---|---|
| Effective Year Built | Effective 1922 |
| Lot Area | 6,832 sqft (0.157 acres) |
| Lot Dimensions | 152 ft deep x 45 ft wide |
| Garage Area | 450 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 525 S ELDORADO ST |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1327 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RM0000 |
| Legal Description | SELY 5 FT OF LOT 11 BLOCK 3 & LOT 12 BLOCK 3 EAST SAN MATEO RSM 5/55 CITY OF SAN MATEO |
| Legal Subdivision | EAST SAN MATEO |
| Legal Block | 3 |
| Legal Lot Number | 11,12 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 606300 |
525 S Eldorado St, a single family home, is owned by two individuals.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 352 LESTER CT, SANTA CLARA, CA 95051-6510 |
| Owner Type | Individual |
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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 525 S Eldorado St was $5,899.
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 | Assessed Market Value |
|---|---|---|---|
| 2026 | $343,673 (+2%) Land $132,876 Building $210,797 | ||
| 2025 | $5,899.00 | $336,935 Land $130,271 Building $206,664 | |
| 2023 | $5,735.00 (-1%) | $323,853 Land $125,213 Building $198,640 | $1,324,350 |
| 2022 | $5,793.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 525 S Eldorado St in Zone X, an area of minimal flood risk.
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.
The area around 525 S Eldorado 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 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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