San Mateo County property record for 421 S Eldorado St, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 930 sqft · built 1912 |
| Lot Size | 0.063 acres (2,755 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $538,500 (Nov 2004) |
| Tax Bill | $10,535 (2025) |
| Deeds & Mortgages | May 2021 Mortgage Feb 2022 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 033-167-060 |
| Primary APN | 033-167-060 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 930 sqft Living Area |
| 1st Floor Area | 780 sqft |
| Family Room | Family Room |
| Year Built | Built 1912 |
|---|---|
| Effective Year Built | Effective 1912 |
| Lot Area | 2,755 sqft (0.063 acres) |
| Lot Dimensions | 92 ft deep x 30 ft wide |
| Garage Area | 220 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 421 S ELDORADO ST |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1374 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RM0000 |
| Legal Description | 30 FT X 91.10 FT ON EL DORADO ST COM 57.9 FT FR 5TH AVE PTN OF LOTS 7 & 8 BLOCK 30 EASTERN ADDITION TO SAN MATEO RSM 1/58 |
| Legal Subdivision | EASTERN ADDITION |
| Legal Block | 30 |
| Legal Lot Number | 7,8 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2018 |
| Census Tract | 606202 |
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 | 421 S ELDORADO ST, SAN MATEO, CA 94402-1374 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| May 11, 2021 | Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC |
| Feb 22, 2022 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 30, 2004 · Amount on Record |
| Deed Sale | Nov 30, 2004 · Amount on Record |
| Deed Document Number | 2004234894 |
| Prior Transfer Date | Apr 10, 1997 |
| Prior Transfer Doc | 0000042238 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 421 S ELDORADO ST, SAN MATEO, CA 94402-1374 |
| Transaction Type | Mortgage |
| Record Updated | Oct 18, 2022 |
| Name | Verified Name |
|---|---|
| Address | 351 W 24TH ST 2DB, 2DB, NEW YORK, NY 10011-1505 |
| Document Number | 0000074506 |
|---|---|
| Date | May 11, 2021 |
| Instrument | 2021-074506 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Address | FOOTHILL RANCH, CA 92610 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 1, 2051 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 22, 2022 |
| Property Address | 421 S ELDORADO ST, SAN MATEO, CA 94402-1374 |
| Document Number | 0000015731 |
| Map Reference | MB 5 PG 134 |
| Instrument Date | Oct 19, 2021 |
| Instrument | 2022-015731 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Irrevocable Living Trust |
| Address | 351 W 24TH ST APT 20B, 20B, NEW YORK, NY 10011-1508 |
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 | $765,614 (+2%) Land $382,807 Building $382,807 | ||
| 2025 | $10,535.00 (+9.27%) Homeowner's exemption | $750,602 (+4.04%) Land $375,301 Building $375,301 | |
| 2023 | $9,641.00 (+2.14%) Homeowner's exemption | $721,458 Land $360,729 Building $360,729 | $840,420 |
| 2022 | $9,439.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 | 2 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 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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