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324 Sylvan Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 324 Sylvan Ave, San Mateo, CA 94403

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 1,990 sqft · built 1950
Lot Size0.136 acres (5,940 sqft)
Owner2 Trust Names on File
Last Sale$350,000 (Dec 1995)
Tax Bill$8,858 (2025)
Deeds & MortgagesDec 2020 Transfer
Dec 2020 Mortgage
+ 2 more
Flood ZoneZone X (minimal risk)
APN039-314-170

Property Details

APN / Parcel Number

Primary APN039-314-170

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms7 Rooms
Stories1 Story
Building Area1,990 sqft Living Area
1st Floor Area1,560 sqft
Family RoomFamily Room

Exterior

Year BuiltBuilt 1950
Effective Year BuiltEffective 1950
Lot Area5,940 sqft (0.136 acres)
Lot Dimensions110 ft deep x 54 ft wide
Garage Area480 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral

Location & Zoning

Street Address324 SYLVAN AVE
CitySAN MATEO
StateCA
Zip94403-3332
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR10006
Legal DescriptionLOT 3 SYLVAN TRACT RSM 29/47 CITY OF SAN MATEO
Legal SubdivisionSYLVAN TRACT
Legal Lot Number3
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group2
Census Block2010
Census Tract607300

Owner

324 Sylvan Ave is owner-occupied and held in a trust since December 1995.

Source: San Mateo County records, as of July 15, 2026

Owner of Record2 Trust Names on File
Mailing Address324 SYLVAN AVE, SAN MATEO, CA 94403-3332
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Dec 29, 2020Quit Claim Deed, Transfer
NOT AVAILABLE
Dec 29, 2020Intrafamily Transfer, Transfer · Conventional Mortgage
BEST CAPITAL FUNDING
Oct 18, 2018Quit Claim Deed, Transfer
OTHER
Oct 17, 2018Quit Claim Deed, Transfer · Conventional Mortgage
QUICKEN LNS

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 18, 1995 · Amount on File
Deed SaleDec 18, 1995 · Amount on File
Deed Document Number1995136608
Prior Transfer DateOct 6, 1995
Prior Transfer Doc0000108893
Record UpdatedOct 29, 2026

December 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateDec 29, 2020
Property Address324 SYLVAN AVE, SAN MATEO, CA 94403-3332
Document Number0000153646
Instrument DateAug 31, 2020
Instrument153646
Transaction TypeTransfer
Record UpdatedFeb 4, 2021
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address324 SYLVAN AVE SAN MATEO CA 944033332, SAN MATEO, CA 94403-3332

December 2020: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionSAN MATEO CA
Recording DateDec 29, 2020
Property Address324 SYLVAN AVE, SAN MATEO, CA 94403-3332
Document Number0000153644
Map ReferenceMB 29 PG 47
Instrument DateAug 31, 2020
Instrument2020-153644
Transaction TypeTransfer
Record UpdatedOct 18, 2022
Title CompanySTEWART TITLE GUARANTY CO

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address324 SYLVAN AVE, SAN MATEO, CA 94403-3332

Mortgage

Document Number0000153645
DateDec 29, 2020
Instrument2020-153645
Lender
NameBEST CAPITAL FUNDING
TypeLending Institution
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term298 Months
DueOct 1, 2045

October 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateOct 18, 2018
Property Address324 SYLVAN AVE, SAN MATEO, CA 94403-3332
Document Number0000080911
Instrument DateOct 9, 2018
Instrument80911
Transaction TypeTransfer
Record UpdatedNov 22, 2018
Title CompanyOTHER

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address324 SYLVAN AVE SAN MATEO CA 944033332, SAN MATEO, CA 94403-3332

October 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateOct 17, 2018
Property Address324 SYLVAN AVE, SAN MATEO, CA 94403-3332
Document Number0000080269
Instrument DateOct 9, 2018
Instrument80269
Transaction TypeTransfer
Record UpdatedNov 22, 2018
Title CompanyOTHER

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband and Wife
Address324 SYLVAN AVE SAN MATEO CA 944033332, SAN MATEO, CA 94403-3332

Mortgage

Document Number80270
DateOct 17, 2018
Instrument80270
Lender
NameQUICKEN LNS
TypeFunding / Finance Company
AddressDETROIT, MI 48226-1906
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term360 Months
DueOct 16, 2048

Tax Assessment & Valuation

The 2025 property tax bill for 324 Sylvan Ave was $8,858 with a homeowner's exemption.

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$636,726 (+2%) Land $296,521 Building $340,205
2025$8,858.00 Homeowner's exemption$624,242 Land $290,707 Building $333,535
2023$8,511.00 (+0.04%) Homeowner's exemption$600,004 Land $279,419 Building $320,585$2,135,610
2022$8,508.00

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

Flood

FEMA maps place 324 Sylvan Ave in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1998.

Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies2 in force
Nearby Flood Claims4 (1998–2022)
Claims Outside the SFHA4 of 4
Most Recent ClaimDec 2022 · rainfall accumulation

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

The area around 324 Sylvan Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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 716 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Sonic Telecom
Fiber		10,000 / 10,000
AT&T
Fiber · Fixed Wireless, DSL in parts of the area		5,000 / 5,000
Xfinity
Cable		2,000 / 250
Astound Broadband
Cable · Fiber in parts of the area		1,500 / 50

May also be available: Etheric Networks, GeoLinks, T-Mobile.

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