323 N Eldorado St, San Mateo, CA 94401 Property Records

San Mateo County property record for 323 N Eldorado St, San Mateo, CA 94401

Property Summary

Property TypeSingle Family Home
Details5 bd · 4 ba · 2,582 sqft · built 1947
Lot Size0.139 acres (6,059 sqft)
Owner2 Individual Names on Record
Last Sale$730,000 (Aug 2016)
Tax Bill$21,991 (2025)
Deeds & MortgagesApr 2018 Mortgage
Dec 2017 Mortgage
Flood ZoneZone X (moderate risk)
APN032-206-080

Property Details

APN / Parcel Number

Primary APN032-206-080

Interior

Bedrooms5 Beds
Full Baths4 Baths
Total Rooms10 Rooms
Stories2 Stories
Building Area2,582 sqft Living Area
1st Floor Area1,789 sqft
2nd Floor Area793 sqft
Family RoomFamily Room

Exterior

Year BuiltBuilt 1947
Effective Year BuiltEffective 1947
Lot Area6,059 sqft (0.139 acres)
Lot Dimensions121 ft deep x 50 ft wide
Garage Area390 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral

Location & Zoning

Street Address323 N ELDORADO ST
CitySAN MATEO
StateCA
Zip94401-1733
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR20000
Legal DescriptionLOT 20 BLOCK 35 RESUB OF BLOCKS 34 35 & 36 WESTERN ADDITION TO TOWN OF SAN MATEO RSM 2/55
Legal SubdivisionWESTERN ADDITION TO TOWN OF SAN MATEO
Legal Block35,34
Legal Lot Number20
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group1
Census Block1010
Census Tract606201

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 Address323 N ELDORADO ST, SAN MATEO, CA 94401-1733
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Apr 4, 2018Deed of Trust, Mortgage · Commercial Mortgage
CATHAY BANK
Dec 29, 2017Deed of Trust, Mortgage · Conventional Mortgage
PARKSIDE LNDG

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 29, 2016 · Amount on Record
Deed SaleAug 29, 2016 · Amount on Record
Prior SaleOct 7, 2015 · Amount on Record
Deed Document Number201687270
Prior Transfer DateAug 24, 2016
Prior Transfer Doc0000087270
Record UpdatedOct 29, 2026

April 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSAN MATEO CA
Property Address323 N ELDORADO ST, SAN MATEO, CA 94401-1733
Transaction TypeMortgage
Record UpdatedJul 25, 2022
Title CompanyCHICAGO TITLE CO

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000025092
DateApr 4, 2018
Instrument2018-025092
Lender
NameCATHAY BANK
TypeBank
AddressEL MONTE, CA 91731
Agreement
TypeCommercial Mortgage
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

December 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSAN MATEO CA
Property Address323 N ELDORADO ST, SAN MATEO, CA 94401-1733
Document Number0000000574
Instrument DateDec 29, 2017
Transaction TypeMortgage
Record UpdatedJan 30, 2018
Title CompanyCHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property
Address323 N ELDORADO ST SAN MATEO CA 944011733, SAN MATEO, CA 94401-1733

Mortgage

Document Number0000000574
DateJan 5, 2018
Instrument574
Lender
NamePARKSIDE LNDG
AddressSAN FRANCISCO, CA 94103
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueJan 4, 2048

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 ValueAssessed Market Value
2026$1,811,503 (+2%) Land $802,610 Building $1,008,893
2025$21,991.00 (+4.4%) Homeowner's exemption$1,775,985 (+4.04%) Land $786,873 Building $989,112
2023$21,065.00 (-2.15%) Homeowner's exemption$1,707,024 Land $756,319 Building $950,705$2,251,260
2022$21,528.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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
moderate risk
500-Year FloodplainYes
0.2% annual chance
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies2 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

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

Wildfire RiskLow
lower than 99.1% of the US · lower than 99.2% of California
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond 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 694 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
Sonic Telecom
Fiber
1,000 / 1,000
Verizon
Fixed Wireless
1,000 / 75
Etheric Networks
Fixed Wireless
250 / 100

May also be available: GeoLinks, T-Mobile, Unwired.

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