San Mateo County property record for 421 Park Ln, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,560 sqft · built 1963 |
| Lot Size | 0.24 acres (10,447 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,721,000 (May 2012) |
| Tax Bill | $26,988 (2025) |
| Deeds & Mortgages | Nov 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 032-022-250 |
| Primary APN | 032-022-250 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,560 sqft Living Area |
| 1st Floor Area | 2,110 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Lot Area | 10,447 sqft (0.24 acres) |
| Lot Dimensions | 113 ft deep x 90 ft wide |
| Garage Area | 720 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 421 PARK LN |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1148 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10010 |
| Legal Description | LOT 3 PARK MANOR RSM 55/22 CITY OF SAN MATEO |
| Legal Subdivision | PARK MANOR |
| Legal Lot Number | 3 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 605800 |
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 Company Names on Record |
|---|---|
| Mailing Address | 421 PARK LN, SAN MATEO, CA 94402-1148 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 11, 2012 · Amount on Record |
| Deed Sale | May 11, 2012 · Amount on Record |
| Prior Sale | Sep 17, 2001 · Amount on Record |
| Deed Document Number | 201266030 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 421 PARK LN, SAN MATEO, CA 94402-1148 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | NORTH AMERICAN TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 421 PARK LN, SAN MATEO, CA 94402-1148 |
| Document Number | 0000136123 |
|---|---|
| Date | Nov 30, 2020 |
| Instrument | 2020-136123 |
| Name | STEARNS LENDING LLC |
|---|---|
| Type | Mortgage Company |
| Address | LEWISVILLE, TX 75057 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Dec 1, 2035 |
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 | $2,218,642 (+2%) Land $1,102,447 Building $1,116,195 | ||
| 2025 | $26,988.00 (+4.24%) Homeowner's exemption | $2,175,141 (+4.04%) Land $1,080,831 Building $1,094,310 | |
| 2023 | $25,890.00 (+1.33%) Homeowner's exemption | $2,090,680 Land $1,038,862 Building $1,051,818 | $2,211,030 |
| 2022 | $25,550.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 333 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
May also be available: Etheric Networks, Sonic Telecom, T-Mobile, Verizon.
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