San Mateo County property record for 4100 E 3rd Ave, Foster City, CA 94404 · Last verified July 2026
| Property Type | Commercial Office |
|---|---|
| Details | 131,446 sqft · built 1999 |
| Lot Size | 7.03 acres (306,496 sqft) |
| Owner | Company Name on File |
| Last Sale | $65,750,000 (Jul 2005) |
| Tax Bill | $1,302,274 (2025) |
| Deeds & Mortgages | May 2022 Mortgage Jan 2022 Sale |
| Flood Zone | Zone X (reduced by levee) |
| APN | 094-532-360 |
| Primary APN | 094-532-360 |
|---|
| Stories | 6 Stories |
|---|---|
| Building Area | 131,446 sqft Gross Area |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Fire Resistance | Fireproof Steel Frame |
| Lot Area | 306,496 sqft |
| Street Address | 4100 E 3RD AVE |
|---|---|
| City | FOSTER CITY |
| State | CA |
| Zip | 94404-4818 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | 7.0382 AC MOL PAR 1 OF LOTLINE ADJUSTMENT 1998-169031 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 608025 |
Source: San Mateo County records · APN 094-532-360
Assessment roll updated July 15, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | PO BOX 847, CARLSBAD, CA 92018-0847 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
| Date | Document |
|---|---|
| May 20, 2022 | Deed of Trust, Mortgage · Commercial Mortgage DEUTSCHE BANK NATIONAL TRUST CO |
| Jan 20, 2022 | Grant Deed, Transfer FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jul 29, 2005 · Amount on Record |
| Deed Sale | Jul 29, 2005 · Amount on Record |
| Deed Document Number | 2005128163 |
| Prior Transfer Date | Jul 20, 2005 |
| Prior Transfer Doc | 0000128163 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 4100 E 3RD AVE, FOSTER CITY, CA 94404-4818 |
| Transaction Type | Mortgage |
| Record Updated | Jul 25, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000041923 |
|---|---|
| Date | May 20, 2022 |
| Instrument | 2022-041923 |
| Name | DEUTSCHE BANK NATIONAL TRUST CO |
|---|---|
| Type | Bank |
| Address | NEW YORK, NY 10019 |
| Type | Commercial Mortgage |
|---|
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jan 20, 2022 |
| Property Address | 4100 E 3RD AVE, FOSTER CITY, CA 94404-4818 |
| Document Number | 0000004847 |
| Map Reference | DOC 98169031 |
| Instrument Date | Jan 06, 2022 |
| Instrument | 2022-004847 |
| Transaction Type | Transfer |
| Record Updated | Jul 25, 2022 |
| Title Company | FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4570 EXECUTIVE DR STE 400, 400, SAN DIEGO, CA 92121-3074 |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Foster City |
| Elementary School District | San Mateo-Foster City Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $115,878,044 (+1.99%) Land $72,522,954 Building $43,355,090 | |
| 2025 | $1,302,274.00 (+1.48%) | $113,611,844 (+4.1%) Land $71,100,936 Building $42,510,908 |
| 2024 | $1,283,272.00 (+2.1%) | |
| 2023 | $1,256,908.00 (+160.27%) | $109,140,000 Land $68,340,000 Building $40,800,000 |
| 2022 | $482,918.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816080253, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Reduced by levee depends on levee performance |
| 500-Year Floodplain | No |
| Nearest Special Flood Hazard Area | Zone VE, within 500 ft |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 1 (2026) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Apr 2026, other causes |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 475 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: AT&T, Verizon, California Internet, Xfinity. Availability varies by address; speeds are provider-advertised maximums, not measured.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures