San Mateo County property record for 121 Seagate Dr, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,620 sqft · built 1986 |
| Lot Size | 0.147 acres (6,409 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $605,000 (Mar 1999) |
| Tax Bill | $12,369 (2025) |
| Deeds & Mortgages | Dec 2025 Transfer |
| Flood Zone | Zone X (reduced by levee) |
| APN | 040-472-050 |
| Primary APN | 040-472-050 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,620 sqft Living Area |
| 1st Floor Area | 1,400 sqft |
| 2nd Floor Area | 1,220 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Lot Area | 6,409 sqft (0.147 acres) |
| Lot Dimensions | 6,784 ft deep x 6,784 ft wide |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 121 SEAGATE DR |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-4930 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1000C |
| Legal Description | LOT 5 BLK 5 WOODBRIDGE PARK UNIT C RSM 103/97-99 |
| Legal Subdivision | WOODBRIDGE PARK UNIT C |
| Legal Block | 5 |
| Legal Lot Number | 5 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 608502 |
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 | 121 SEAGATE DR, SAN MATEO, CA 94403-4930 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 3, 1999 · Amount on Record |
| Deed Sale | Mar 3, 1999 · Amount on Record |
| Deed Document Number | 199936948 |
| Last Transfer Date | Dec 10, 2025 |
| Transfer Doc | 0000068424 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Dec 15, 2025 |
| Property Address | 121 SEAGATE DR, SAN MATEO, CA 94403-4930 |
| Document Number | 0000068424 |
| Map Reference | MB 103 PG 97-99 |
| Instrument Date | Dec 10, 2025 |
| Instrument | 2025-068424 |
| Transaction Type | Transfer |
| Record Updated | Jan 7, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Living Trust |
| Address | 121 SEAGATE DR, SAN MATEO, CA 94403-4930 |
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 | Belmont-Redwood Shores Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $967,424 (+2%) Land $483,712 Building $483,712 | ||
| 2025 | $12,369.00 (+6.61%) Homeowner's exemption | $948,456 (+4.04%) Land $474,228 Building $474,228 | |
| 2024 | $11,602.00 (+2.33%) | ||
| 2023 | $11,338.00 (+2.82%) Homeowner's exemption | $911,628 Land $455,814 Building $455,814 | $2,319,390 |
| 2022 | $11,027.00 |
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 reduced by levee · depends on levee performance |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 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 605 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 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, GeoLinks.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures