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

San Mateo County property record for 12 E 40th Ave, San Mateo, CA 94403 · Last verified August 2026

Property Highlights

Property TypeResidential > Multi-Unit > Multi-Family Dwellings
Bedrooms12 Beds
Bathrooms8 Baths
Architecture StyleMultifamily
Year BuiltBuilt 1959
Square Footage8,368 sqft Living Area
Lot Size7,263 sqft (0.167 acres)
Tax Bill$23,932.00 (2025)

Property Details

APN / Parcel Number

Primary APN040-073-230

Interior

Bedrooms12 Beds
Full Baths8 Baths
Total Rooms28 Rooms
Units7 Units
Building Area8,368 sqft Living Area
Stories2 Stories

Exterior

Year BuiltBuilt 1959
Effective Year BuiltEffective 1959
Architectural StyleMultifamily Style
Exterior MaterialStucco Exterior
Construction TypeFrame Construction
Roof ConstructionFlat Roof Construction
Roof MaterialRoll Tar & Gravel Roof
Lot Area7,263 sqft (0.167 acres)
Depth X Width142 ft x 51 ft Depth x Width
Parking Spaces9 Parking Spaces

Location & Zoning

Street Address12 E 40TH AVE
CitySAN MATEO
StateCA
Zip94403-7817
Property UsageResidential Property Usage
TypeResidential > Multi-Unit > Multi-Family Dwellings
Legal Description52.50 FT X 143.83 FT ON 40TH AVE COM 88.98 FT FRM PACIFIC BLVD PTN OF ACREAGE & PTN OF LOT 5 SAN MATEO GARDENS RSM 20/14 CITY OF SAN MATEO
Legal SubdivisionSAN MATEO GARDENS
Legal Lot Number5
JurisdictionSAN MATEO CA
Minor Civil DivisionSAN MATEO
Census Blockgroup1
Census Block1006
Census Tract608501

Owner

Source: San Mateo County records · APN 040-073-230

Assessment roll updated July 15, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordCompany Name on File
Mailing Address37 E 38TH AVE, SAN MATEO, CA 94403-3507
Owner TypeOwner is a Company
VestingOwner is a Trust, Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last Transfer DateJan 07, 1994
Transfer Doc0000170133
Record RefreshedSep 20, 2026

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified August 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$1,185,939 (+2%) Land $360,737 Building $825,202
2025$23,932.00 (-7.09%)$1,162,686 (+4.04%) Land $353,664 Building $809,022
2023$25,757.00 (+11.21%)$1,117,539 Land $339,932 Building $777,607
2022$23,161.00

Flood & Wildfire

12 E 40th Ave is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.

Flood

Source: FEMA National Flood Hazard Layer · San Mateo County (06081C), updated September 10, 2026

FEMA Flood ZoneZone X
minimal flood hazard · outside the 0.2% annual chance floodplain
Special Flood Hazard AreaNo

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire Risk to HomesNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach of burnable land

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

Nearby Properties on E 40th Ave

Nearby Streets

Search Property Records by Address or Parcel Number