San Mateo County property record for 221 28th Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,810 sqft · built 1939 |
| Lot Size | 0.137 acres (5,949 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $785,000 (Sep 2013) |
| Tax Bill | $12,955 (2025) |
| Deeds & Mortgages | Jul 2018 Mortgage Dec 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-323-100 |
| Primary APN | 039-323-100 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,810 sqft Living Area |
| Gross Area | 2,180 sqft |
| 1st Floor Area | 1,030 sqft |
| 2nd Floor Area | 650 sqft |
| Basement Area | 370 sqft |
| Family Room | Family Room |
| Year Built | Built 1939 |
|---|---|
| Effective Year Built | Effective 1939 |
| Lot Area | 5,949 sqft (0.137 acres) |
| Lot Dimensions | 98 ft deep x 60 ft wide |
| Garage Type | Basement |
| Garage Area | 370 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 221 28TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-2403 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | NELY 60.7 FT OF NWLY 98 FT OF LOT 3 SUB OF LOTS 14 15 16 17 OF BERESFORD PARK RSM D/14 CITY OF SAN MATEO |
| Legal Subdivision | BERESFORD PARK |
| Legal Lot Number | 3,14 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 607300 |
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 5 STIRLING WAY, HAYWARD, CA 94542-7945 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jul 23, 2018 | Deed of Trust, Mortgage · Commercial Mortgage EAST WEST BANK |
| Dec 10, 2021 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 6, 2013 · Amount on Record |
| Deed Sale | Sep 6, 2013 · Amount on Record |
| Prior Sale | May 20, 2002 · Amount on Record |
| Deed Document Number | 2013130499 |
| Last Transfer Date | Aug 16, 2020 |
| Transfer Doc | 0000168963 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 221 28TH AVE, SAN MATEO, CA 94403-2403 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000057073 |
|---|---|
| Date | Jul 23, 2018 |
| Instrument | 2018-057073 |
| Name | EAST WEST BANK |
|---|---|
| Type | Bank |
| Address | EL MONTE, CA 91731 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 13, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Dec 10, 2021 |
| Property Address | 221 28TH AVE, SAN MATEO, CA 94403-2403 |
| Document Number | 0000168963 |
| Map Reference | MB D PG 14 |
| Instrument Date | Aug 16, 2020 |
| Instrument | 2021-168963 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Living Trust |
| Address | 5 STIRLING WAY, HAYWARD, CA 94542-7945 |
| Investor | Possibly a Property Investor |
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 | $981,536 (+2%) Land $490,768 Building $490,768 | ||
| 2025 | $12,955.00 (+3.48%) | $962,292 (+4.04%) Land $481,146 Building $481,146 | |
| 2023 | $12,519.00 (+3.37%) | $924,926 Land $462,463 Building $462,463 | $1,416,240 |
| 2022 | $12,111.00 |
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 |
| Nearby Flood Claims | 4 (1998–2022) |
| Claims Outside the SFHA | 4 of 4 |
| Most Recent Claim | Dec 2022 · rainfall accumulation |
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 799 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
May also be available: Etheric Networks, GeoLinks, T-Mobile, Verizon.
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