San Mateo County property record for 255 Baldwin Ave, San Mateo, CA 94401
| Property Type | Commercial Office |
|---|---|
| Lot Size | 0.16 acres (6,963 sqft) |
| Owner | 2 Companies on Record |
| Tax Bill | $3,468 (2025) |
| Deeds & Mortgages | Apr 2022 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 032-321-180 |
| Primary APN | 032-321-180 |
|---|
| Lot Area | 6,963 sqft (0.16 acres) |
|---|
| Street Address | 255 BALDWIN AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94401-3914 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | CL00C2 |
| Legal Description | SELY 100 FT OF LOT 7 SUB PTN OF BLOCK 14 WESTERN ADD TO SAN MATEO RSM 24/47 |
| Legal Subdivision | WESTERN ADD TO SAN MATEO |
| Legal Block | 14 |
| Legal Lot Number | 7 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 606300 |
Source: San Mateo County assessment roll, 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 Companies on Record |
|---|---|
| Mailing Address | 350 GEORGETOWN AVE, SAN MATEO, CA 94402-2249 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Apr 12, 2022 |
| Transfer Doc | 0000032529 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Apr 18, 2022 |
| Property Address | 255 BALDWIN AVE, SAN MATEO, CA 94401-3914 |
| Document Number | 0000032529 |
| Map Reference | MB 24 PG 47 |
| Instrument Date | Apr 12, 2022 |
| Instrument | 2022-032529 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 350 GEORGETOWN AVE, SAN MATEO, CA 94402-2249 |
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 | $182,359 (+2%) Land $120,403 Building $61,956 | |
| 2025 | $3,468.00 (+6.81%) | $178,785 (+4.04%) Land $118,043 Building $60,742 |
| 2023 | $3,247.00 (+4.51%) | $171,844 Land $113,460 Building $58,384 |
| 2022 | $3,107.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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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