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40 E 40th Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 40 E 40th Ave, San Mateo, CA 94403

Property Summary

Property TypeMulti-Family Dwellings
Details6 bd · 6 ba · 5,575 sqft · built 1956
Lot Size0.145 acres (6,317 sqft)
Owner2 Trust Names on File
Last Sale$917,000 (Apr 2010)
Tax Bill$21,647 (2025)
Deeds & MortgagesMay 2020 Mortgage
Feb 2018 Transfer
Flood ZoneZone X (reduced by levee)
APN040-073-200

Property Details

APN / Parcel Number

Primary APN040-073-200

Interior

Bedrooms6 Beds
Full Baths6 Baths
Total Rooms18 Rooms
Units6 Units
Stories2 Stories
Building Area5,575 sqft Living Area

Exterior

Year BuiltBuilt 1956
Effective Year BuiltEffective 1956
Architectural StyleMulti-Family
Lot Area6,317 sqft (0.145 acres)
Lot Dimensions126 ft deep x 50 ft wide
Parking Spaces6 Parking Spaces

Location & Zoning

Street Address40 E 40TH AVE
CitySAN MATEO
StateCA
Zip94403-7820
Property CategoryResidential
Property TypeResidential > Multi-Unit > Multi-Family Dwellings
Legal Description50 FT X 126.33 FT ON SELY LINE OF EAST 40TH COM 50 FT NELY FR LOT 5 PTN OF LOT 6 SAN MATEO GARDENS RSM 20/14 CITY OF SAN MATEO
Legal SubdivisionSAN MATEO GARDENS
Legal Lot Number5,6
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group1
Census Block1006
Census Tract608501

Owner

40 E 40th Ave, a residential property, is held in a trust since April 2010.

Source: San Mateo County records, as of August 31, 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 Record2 Trust Names on File
Mailing Address134 WARREN RD, SAN MATEO, CA 94401-3720
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
May 14, 2020Deed of Trust, Mortgage
PROVIDENT CU
Feb 13, 2018Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleApr 15, 2010 · Amount on File
Deed SaleApr 15, 2010 · Amount on File
Deed Document Number201040487
Prior Transfer DateNov 25, 2002
Prior Transfer Doc0000247945
Record UpdatedOct 29, 2026

May 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSAN MATEO CA
Property Address40 E 40TH AVE, SAN MATEO, CA 94403-7820
Document Number0000053507
Instrument DateMay 14, 2020
Transaction TypeMortgage
Record UpdatedJul 3, 2020
Title CompanyFIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address134 WARREN RD SAN MATEO CA 944013720, SAN MATEO, CA 94401-3720
InvestorPossibly a Property Investor

Mortgage

Document Number0000053507
DateJun 10, 2020
Instrument53507
Lender
NamePROVIDENT CU
TypeCredit Union
Address303 TWIN DOLPHIN DR, REDWOOD CITY, CA 94065-1497
Agreement
AmountAmount on Record
Interest
Rate TypeAdjustable Rate

February 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateFeb 13, 2018
Property Address40 E 40TH AVE, SAN MATEO, CA 94403-7820
Document Number0000009798
Instrument DateFeb 8, 2018
Instrument9798
Transaction TypeTransfer
Record UpdatedMar 2, 2018
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address134 WARREN RD SAN MATEO CA 944013720, SAN MATEO, CA 94401-3720

Tax Assessment & Valuation

The 2025 property tax bill for 40 E 40th Ave was $21,647.

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

Property Jurisdictions

TypeName
StateCalifornia
CountySan Mateo County
MunicipalitySan Mateo 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$1,207,342 (+2%) Land $829,476 Building $377,866
2025$21,647.00$1,183,669 Land $813,212 Building $370,457
2023$20,819.00 (+1.35%)$1,137,708 Land $781,635 Building $356,073
2022$20,541.00

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

Flood

FEMA maps place 40 E 40th Ave in Zone X, where a levee reduces flood risk.

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
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies7 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.

Wildfire

The area around 40 E 40th Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot rated
no burnable land within 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 SystemCALIFORNIA WATER SERVICE - SAN MATEO
private · serves 103,536 people · EPA ID CA4110008
Water SourcePurchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State InspectionMar 2025
Lead4 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 734 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		2,000 / 250
Astound Broadband
Cable		1,500 / 50
Verizon
Fixed Wireless		300 / 20
Starlink
Satellite		280 / 30
Etheric Networks
Fixed Wireless		250 / 100
T-Mobile
Fixed Wireless		100 / 20

May also be available: GeoLinks, Sonic Telecom.

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