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4000 E 3rd Ave, Foster City (San Mateo), CA 94404 Property Records

San Mateo County property record for 4000 E 3rd Ave, Foster City, CA 94404

Property Summary

Property TypeCommercial Office
Details136,610 sqft · built 1999
Lot Size8.01 acres (348,939 sqft)
OwnerCompany Name on Record
Last Sale$65,750,000 (Jul 2005)
Tax Bill$1,465,174 (2025)
Deeds & MortgagesMay 2022 Mortgage
Jan 2022 Sale
Flood ZoneZone X (reduced by levee)
APN094-532-370

Property Details

APN / Parcel Number

Primary APN094-532-370

Interior

Stories6 Stories
Building Area136,610 sqft Gross Area

Exterior

Year BuiltBuilt 1999
Effective Year BuiltEffective 2023
Fire ResistanceFireproof Steel Frame
Lot Area348,939 sqft

Location & Zoning

Street Address4000 E 3RD AVE
CityFOSTER CITY
StateCA
Zip94404-4824
Property CategoryCommercial
Property TypeCommercial > Office > Commercial Office
Legal Description8.0077 AC MOL PAR 3 OF LOTLINE ADJUSTMENT 1998-169031 ACREAGE CITY OF FOSTER CITY
Legal SubdivisionFOSTER CITY
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group3
Census Block3001
Census Tract608025

Owner

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 RecordCompany Name on Record
Mailing AddressPO BOX 847, CARLSBAD, CA 92018-0847
Owner TypeCompany

Deeds, Mortgages & Sale History

DateDocument
May 20, 2022Deed of Trust, Mortgage · Commercial Mortgage
DEUTSCHE BANK NATIONAL TRUST CO
Jan 20, 2022Grant Deed, Transfer
FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJul 29, 2005 · Amount on Record
Deed SaleJul 29, 2005 · Amount on Record
Deed Document Number2005128163
Prior Transfer DateJul 20, 2005
Prior Transfer Doc0000128163
Record UpdatedSep 20, 2026

May 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSAN MATEO CA
Property Address4000 E 3RD AVE, FOSTER CITY, CA 94404-4824
Transaction TypeMortgage
Record UpdatedJul 25, 2022
Title CompanyFIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000041923
DateMay 20, 2022
Instrument2022-041923
Lender
NameDEUTSCHE BANK NATIONAL TRUST CO
TypeBank
AddressNEW YORK, NY 10019
Agreement
TypeCommercial Mortgage

January 2022: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN MATEO CA
Recording DateJan 20, 2022
Property Address4000 E 3RD AVE, FOSTER CITY, CA 94404-4824
Document Number0000004847
Map ReferenceDOC 98169031
Instrument DateJan 6, 2022
Instrument2022-004847
Transaction TypeTransfer
Record UpdatedJul 25, 2022
Title CompanyFIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Arm's Length
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address4570 EXECUTIVE DR STE 400, 400, SAN DIEGO, CA 92121-3074

Tax Assessment & Valuation

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountySan Mateo County
MunicipalityFoster City
Elementary School DistrictSan Mateo-Foster City Elementary School District (KG - 08)
Secondary School DistrictSan Mateo Union High School District (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$130,385,320 (+2%) Land $83,347,276 Building $47,038,044
2025$1,465,174.00 (+1.42%)$127,828,746 (+4.04%) Land $81,713,016 Building $46,115,730
2024$1,444,590.00 (+2.1%)
2023$1,414,913.00 (+193.11%)$122,865,000 Land $78,540,000 Building $44,325,000
2022$482,721.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
reduced by levee · depends on levee performance
Nearest Special Flood Hazard AreaZone VE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies3 in force
Nearby Flood Claims1 (2026)
Claims Outside the SFHA1 of 1
Most Recent ClaimApr 2026 · other causes

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.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemESTERO MUNICIPAL IMPROVEMENT DISTRICT
serves 36,556 people · EPA ID CA4110021
Water SourcePurchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State InspectionNov 2024
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 475 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · Fixed Wireless, DSL in parts of the area		5,000 / 5,000
Xfinity
Cable · Fiber in parts of the area		2,000 / 250
Etheric Networks
Fixed Wireless		250 / 100
T-Mobile
Fixed Wireless		100 / 20

May also be available: GeoLinks, Verizon.

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