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102 43rd Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 102 43rd Ave, San Mateo, CA 94403

Property Summary

Property TypeDuplex
Details4 bd · 2 ba · 3,235 sqft · built 1948
Lot Size0.117 acres (5,086 sqft)
Owner2 Individual Names on Record
Tax Bill$6,945 (2025)
Deeds & MortgagesFeb 2020 Transfer
Feb 2020 Transfer
+ 2 more
Flood ZoneZone X (minimal risk)
APN042-261-140

Property Details

APN / Parcel Number

Primary APN042-261-140

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Units2 Units
Stories2 Stories
Building Area3,235 sqft Living Area

Exterior

Year BuiltBuilt 1948
Effective Year BuiltEffective 1948
Architectural StyleDuplex Single
Lot Area5,086 sqft (0.117 acres)
Lot Dimensions80 ft deep x 65 ft wide
TerrainAbove Road/Slope
View / LotCorner
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address102 43RD AVE
CitySAN MATEO
StateCA
Zip94403-5114
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Local Zoning CodeR20000
Legal DescriptionLOT 27 BLOCK 22 SAN MATEO KNOLLS MAP NO 2 RSM 24/61 62 CITY OF SAN MATEO
Legal SubdivisionSAN MATEO KNOLLS MAP NO 2
Legal Block22
Legal Lot Number27
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group2
Census Block2026
Census Tract607200

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 Record2 Individual Names on Record
Mailing Address16752 COLUMBIA DR, CASTRO VALLEY, CA 94552-1649
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Feb 13, 2020Quit Claim Deed, Transfer
ATTORNEY ONLY
Feb 13, 2020Quit Claim Deed, Transfer
ATTORNEY ONLY
Apr 4, 2019Affidavit of Death, Transfer
ATTORNEY ONLY
Apr 4, 2019Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last Transfer DateNov 13, 2019
Transfer Doc0000012385
Record UpdatedOct 29, 2026

February 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateFeb 13, 2020
Property Address102 43RD AVE, SAN MATEO, CA 94403-5114
Document Number0000012385
Instrument DateNov 13, 2019
Instrument12385
Transaction TypeTransfer
Record UpdatedMar 6, 2020
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address578 ATHENS ST SAN FRANCISCO CA 941122804, SAN FRANCISCO, CA 94112-2804

February 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateFeb 13, 2020
Property Address102 43RD AVE, SAN MATEO, CA 94403-5114
Document Number0000012384
Instrument DateNov 13, 2019
Instrument12384
Transaction TypeTransfer
Record UpdatedMar 6, 2020
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer
  • Partial Interest

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property
Address578 ATHENS ST SAN FRANCISCO CA 941122804, SAN FRANCISCO, CA 94112-2804

April 2019: Affidavit of Death, Transfer

Document TypeAffidavit of Death
JurisdictionSAN MATEO CA
Recording DateApr 4, 2019
Property Address102 43RD AVE, SAN MATEO, CA 94403-5114
Document Number0000024106
Instrument DateMar 27, 2019
Instrument24106
Transaction TypeTransfer
Record UpdatedApr 24, 2019
Title CompanyATTORNEY ONLY

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address102-104 43RD AVE SAN MATEO CA 944035114, SAN MATEO, CA 94403-5114

April 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateApr 4, 2019
Property Address102 43RD AVE, SAN MATEO, CA 94403-5114
Document Number0000024111
Instrument DateMar 27, 2019
Instrument24111
Transaction TypeTransfer
Record UpdatedApr 24, 2019
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSeparate Estate/Property
Address578 ATHENS ST SAN FRANCISCO CA 941122804, SAN FRANCISCO, CA 94112-2804

Tax Assessment & Valuation

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$344,850 (+2%) Land $120,691 Building $224,159
2025$6,945.00 (-10.28%)$338,089 (+4.04%) Land $118,325 Building $219,764
2023$7,741.00 (+19.39%)$324,962 Land $113,731 Building $211,231
2022$6,484.00

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
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Claims1 (1986)
Claims Outside the SFHA1 of 1
Most Recent ClaimFeb 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.

Wildfire

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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