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21 E 39th Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 21 E 39th Ave, San Mateo, CA 94403 · Last verified July 2026

Property Highlights

Property TypeResidential > Multi-Unit > Duplex
Bedrooms4 Beds
Bathrooms2 Baths
Year BuiltBuilt 1957
Square Footage2,263 sqft Living Area
Lot Size6,750 sqft (0.155 acres)
OccupancyOwner Occupied
Last Sale$1,400,000 (2021)
Tax Bill$20,524.00 (2025)

Owner

Source: San Mateo County records · APN 040-071-140

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 RecordIndividual Name on File
Mailing Address23 E 39TH AVE, SAN MATEO, CA 94403-3509
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleJun 14, 2021 · Amount on Record
Deed SaleJun 14, 2021 · Amount on Record
Prior SaleJun 22, 1999 · Amount on Record
Deed Doc Number202190765
Prior Transfer DateAug 29, 2014
Prior Transfer Doc0000079539
Record RefreshedSep 20, 2026

June 2021: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN MATEO CA
Recording DateJun 14, 2021
Property Address21 E 39TH AVE, SAN MATEO, CA 94403-3509
Document Number0000090765
Map ReferenceMB 20 PG 14
Instrument DateMay 26, 2021
Instrument2021-090765
Transaction TypeTransfer
Record UpdatedJul 01, 2021
Title CompanyLAWYERS TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$8,540.00
Amount AccuracyRounded Values by County
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address21 E 39TH AVE, SAN MATEO, CA 94403-3509

Mortgage

Document Number0000090766
DateJun 14, 2021
Instrument2021-090766
Lender
NameBANK OF AMERICA NA
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJul 01, 2051

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 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

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

YearTax BillAssessed Value
2026$1,545,711 (+2%) Land $1,159,284 Building $386,427
2025$20,524.00 (+5.54%) Homeowner's exemption$1,515,403 (+4.04%) Land $1,136,553 Building $378,850
2023$19,447.00 (+1.8%) Homeowner's exemption$1,456,560 Land $1,092,420 Building $364,140
2022$19,104.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Property Details

APN / Parcel Number

Primary APN040-071-140

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Units3 Units
Building Area2,263 sqft Living Area
1st Floor2,263 sqft 1st Floor
Stories1 Stories
FireplaceFireplace
Fireplaces1 Fireplaces
ElevatorElevator

Exterior

Year BuiltBuilt 1957
Effective Year BuiltEffective 1957
Architectural StyleDuplex Single Style
Construction TypeFrame Construction
Roof MaterialComposition Shingle Roof
Lot Area6,750 sqft (0.155 acres)
Depth X Width135 ft x 50 ft Depth x Width
Parking Spaces2 Parking Spaces

Utilities and HVAC

Heating SystemCentral Heating

Location & Zoning

Street Address21 E 39TH AVE
CitySAN MATEO
StateCA
Zip94403-3509
Property UsageResidential Property Usage
TypeResidential > Multi-Unit > Duplex
Legal DescriptionSWLY 50 FT OF NELY 100 FT OF LOT 2 SAN MATEO GARDENS RSM 20/14 CITY OF SAN MATEO
Legal SubdivisionSAN MATEO GARDENS
Legal Lot Number2
JurisdictionSAN MATEO CA
Minor Civil DivisionSAN MATEO
Census Blockgroup1
Census Block1011
Census Tract608501

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