San Mateo County property record for 30 28th Ave, San Mateo, CA 94403
| Property Type | Commercial Office |
|---|---|
| Details | 3,427 sqft · built 1954 |
| Lot Size | 0.235 acres (10,231 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,300,000 (May 2015) |
| Tax Bill | $19,872 (2025) |
| Deeds & Mortgages | Dec 2025 Line of Credit Oct 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-381-050 |
| Primary APN | 039-381-050 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 3,427 sqft Gross Area |
| 1st Floor Area | 3,427 sqft |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Lot Area | 10,231 sqft (0.235 acres) |
| Lot Dimensions | 78 ft deep x 130 ft wide |
| Street Address | 30 28TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-2427 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | E20000 |
| Legal Description | 78.70 FT X 130 FT ON COR OF EDISON ST & 28TH AVE PTN OF LOT 24 SUB OF LOTS 1 2 19 21 OF BERESFORD PARK RSM A/17 CITY OF SAN MATEO |
| Legal Subdivision | BERESFORD PARK |
| Legal Lot Number | 24,1 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 607400 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 30 28TH AVE, SAN MATEO, CA 94403-2427 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Dec 1, 2025 | Deed of Trust, Mortgage · Line of Credit BMO BANK NA |
| Oct 21, 2021 | Deed of Trust, Mortgage · Commercial Mortgage JPMORGAN CHASE BANK NA |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 13, 2015 · Amount on Record |
| Deed Sale | May 13, 2015 · Amount on Record |
| Deed Document Number | 201548906 |
| Last Transfer Date | May 2, 2016 |
| Transfer Doc | 0000044015 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 30 28TH AVE, SAN MATEO, CA 94403-2427 |
| Transaction Type | Mortgage |
| Record Updated | Dec 31, 2025 |
| Title Company | STEWART TITLE, STEWART TITLE OF CA INC |
| Name | Verified Name |
|---|---|
| Address | 148 VISTA DEL GRANDE, SAN CARLOS, CA 94070-2929 |
| Document Number | 0000065065 |
|---|---|
| Date | Dec 1, 2025 |
| Instrument | 2025-065065 |
| Name | BMO BANK NA |
|---|---|
| Type | Bank |
| Address | MILWAUKEE, WI 53201 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 30 28TH AVE, SAN MATEO, CA 94403-2427 |
| Transaction Type | Mortgage |
| Record Updated | Nov 16, 2021 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Address | 30 28TH AVE, SAN MATEO, CA 94403-2427 |
| Document Number | 0000148360 |
|---|---|
| Date | Oct 21, 2021 |
| Instrument | 2021-148360 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | PONTIAC, MI 48341 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $1,593,642 (+2%) Land $1,342,341 Building $251,301 | |
| 2025 | $19,872.00 (+4.51%) | $1,562,395 (+4.04%) Land $1,316,021 Building $246,374 |
| 2023 | $19,015.00 (+0.56%) | $1,501,727 Land $1,264,919 Building $236,808 |
| 2022 | $18,909.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 4 (1978–1986) |
| Most Recent Claim | Feb 1986 · Severe Storms & Flooding |
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 290 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks.
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