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

San Mateo County property record for 48 E 40th Ave, San Mateo, CA 94403 · Last verified August 2026

Property Highlights

Property TypeResidential > Multi-Unit > Multi-Family Dwellings
Bedrooms6 Beds
Bathrooms6 Baths
Architecture StyleMultifamily
Year BuiltBuilt 1955
Square Footage5,040 sqft Living Area
Lot Size6,317 sqft (0.145 acres)
Last Sale$1,285,000 (2005)
Tax Bill$29,194.00 (2025)

Property Details

APN / Parcel Number

Primary APN040-073-180

Interior

Bedrooms6 Beds
Full Baths6 Baths
Total Rooms18 Rooms
Units6 Units
Building Area5,040 sqft Living Area
Stories2 Stories

Exterior

Year BuiltBuilt 1955
Effective Year BuiltEffective 1955
Architectural StyleMultifamily Style
Lot Area6,317 sqft (0.145 acres)
Depth X Width126 ft x 50 ft Depth x Width
Parking Spaces6 Parking Spaces

Location & Zoning

Street Address48 E 40TH AVE
CitySAN MATEO
StateCA
Zip94403-7822
Property UsageResidential Property Usage
TypeResidential > Multi-Unit > Multi-Family Dwellings
Legal Description50 FT X 127 FT ON SELY LINE OF EAST 40TH AVE LYING ADJ TO LOT 7 PTN OF LOT 6 SAN MATEO GARDENS RSM 20/14 CITY OF SAN MATEO
Legal SubdivisionSAN MATEO GARDENS
Legal Lot Number7,6
JurisdictionSAN MATEO CA
Minor Civil DivisionSAN MATEO
Census Blockgroup1
Census Block1006
Census Tract608501

Owner

Source: San Mateo County records · APN 040-073-180

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 Record2 Individual Names on File
Mailing AddressPO BOX 1694, SAN BRUNO, CA 94066-7694
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJun 17, 2005 · Amount on Record
Deed SaleJun 17, 2005 · Amount on Record
Deed Doc Number2005101611
Last Transfer DateFeb 09, 2021
Transfer Doc0000022286
Record RefreshedSep 20, 2026

February 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionSAN MATEO CA
Recording DateFeb 10, 2021
Property Address48 E 40TH AVE, SAN MATEO, CA 94403-7822
Document Number0000022286
Map ReferenceMB 20 PG 14
Instrument DateFeb 09, 2021
Instrument2021-022286
Transaction TypeTransfer
Record UpdatedAug 05, 2022

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenant/Joint Tenant w/ Right Of Survivorship

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$1,826,985 (+2%) Land $1,144,534 Building $682,451
2025$29,194.00 (+3.54%)$1,791,163 (+4.04%) Land $1,122,093 Building $669,070
2023$28,196.00 (+2%)$1,721,612 Land $1,078,522 Building $643,090
2022$27,644.00

Flood & Wildfire

48 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
reduced risk due to levee; depends on levee performance
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.

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