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331 N Delaware St, San Mateo, CA 94401 Property Records

San Mateo County property record for 331 N Delaware St, San Mateo, CA 94401

Property Summary

Property TypeSingle Family Home
Details4 bd · 3.5 ba · 2,250 sqft · built 2000
Lot Size0.123 acres (5,368 sqft)
Owner2 Individual Names on Record
Last Sale$808,000 (Nov 2012)
Tax Bill$14,326 (2025)
Deeds & MortgagesSep 2020 Transfer
Sep 2020 Transfer
Flood ZoneZone X (moderate risk)
APN032-204-050

Property Details

APN / Parcel Number

Primary APN032-204-050

Interior

Bedrooms4 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Total Rooms10 Rooms
Units2 Units
Stories2 Stories
Building Area2,250 sqft Living Area
1st Floor Area850 sqft

Exterior

Year BuiltBuilt 2000
Effective Year BuiltEffective 2000
Architectural StyleMulti-Family
Exterior MaterialStucco
Construction TypeFrame
Roof MaterialComposition Shingle
Lot Area5,368 sqft (0.123 acres)
Lot Dimensions161 ft deep x 33 ft wide
Garage TypeDetached
Parking Spaces390 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address331 N DELAWARE ST
CitySAN MATEO
StateCA
Zip94401-1727
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeRM0003
Legal DescriptionSE 16 FT 8 IN OF LOT 25 & NW 16 FT 8 IN OF LOT 26 BLOCK 24 WESTERN ADDITION TO TOWN OF SAN MATEO RSM
Legal SubdivisionWESTERN ADDITION TO TOWN OF SAN MATEO
Legal Block24
Legal Lot Number25,26
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group1
Census Block1012
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 Address331 N DELAWARE ST, SAN MATEO, CA 94401-1727
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Sep 3, 2020Quit Claim Deed, Transfer
FIRST AMERICAN TITLE
Sep 3, 2020Intrafamily Transfer, Transfer
FIRST AMERICAN TITLE COMPANY

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleNov 14, 2012 · Amount on Record
Deed SaleNov 14, 2012 · Amount on Record
Prior SaleAug 26, 2004 · Amount on Record
Deed Document Number2012168867
Prior Transfer DateMay 8, 1997
Prior Transfer Doc0000055108
Record UpdatedOct 29, 2026

September 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateSep 3, 2020
Property Address331 N DELAWARE ST, SAN MATEO, CA 94401-1727
Document Number0000090109
Instrument DateAug 28, 2020
Instrument90109
Transaction TypeTransfer
Record UpdatedOct 20, 2020
Title CompanyFIRST AMERICAN TITLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSeparate Estate/Property
Address331 N DELAWARE ST SAN MATEO CA 944011727, SAN MATEO, CA 94401-1727

September 2020: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionSAN MATEO CA
Recording DateSep 3, 2020
Property Address331 N DELAWARE ST, SAN MATEO, CA 94401-1727
Document Number0000090108
Map ReferenceMB D PG 48
Instrument DateAug 28, 2020
Instrument2020-090108
Transaction TypeTransfer
Record UpdatedAug 9, 2021
Title CompanyFIRST AMERICAN TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipTenants in Common
Address1440 CHAPIN AVE STE 350, 350, BURLINGAME, CA 94010-4011

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$1,014,880 (+2%) Land $507,440 Building $507,440
2025$14,326.00 (+6.23%)$994,982 (+4.04%) Land $497,491 Building $497,491
2023$13,486.00 (+0.04%)$956,348 Land $478,174 Building $478,174
2022$13,480.00

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
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 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 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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