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322 30th Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 322 30th Ave, San Mateo, CA 94403

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,490 sqft · built 1936
Lot Size0.192 acres (8,358 sqft)
Owner2 Company Names on Record
Last Sale$341,000 (Sep 1996)
Tax Bill$7,226 (2025)
Deeds & MortgagesFeb 2026 Transfer
Flood ZoneZone X (minimal risk)
APN039-317-180

Property Details

APN / Parcel Number

Primary APN039-317-180

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Stories1 Story
Building Area1,490 sqft Living Area
1st Floor Area730 sqft
Family RoomFamily Room

Exterior

Year BuiltBuilt 1936
Effective Year BuiltEffective 1936
Lot Area8,358 sqft (0.192 acres)
Lot Dimensions184 ft deep x 45 ft wide
Garage Area600 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral

Location & Zoning

Street Address322 30TH AVE
CitySAN MATEO
StateCA
Zip94403-2717
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR10006
Legal DescriptionHAV 45.50 FT FRONT ON THIRTIETH AVE COM 138.20 FT FR ISABELLE AVE PTN LOT 24 BERESFORD PARK RSM 1/68
Legal SubdivisionBERESFORD PARK
Legal Lot Number24
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group2
Census Block2006
Census Tract607300

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 Company Names on Record
Mailing Address322 30TH AVE, SAN MATEO, CA 94403-2717
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleSep 30, 1996 · Amount on Record
Deed SaleSep 30, 1996 · Amount on Record
Prior SaleAug 2, 1995 · Amount on Record
Deed Document Number1996121568
Prior Transfer DateSep 12, 1996
Prior Transfer Doc0000121567
Record UpdatedOct 29, 2026

February 2026: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionSAN MATEO CA
Recording DateFeb 13, 2026
Property Address322 30TH AVE, SAN MATEO, CA 94403-2717
Document Number0000007367
Map ReferenceMB 1 PG 68
Instrument DateFeb 5, 2026
Instrument2026-007367
Transaction TypeTransfer
Record UpdatedMar 20, 2026

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address322 30TH AVE, SAN MATEO, CA 94403-2717

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$566,462 (+2%) Land $283,231 Building $283,231
2025$7,226.00 (+3.96%) Homeowner's exemption$555,356 (+4.04%) Land $277,678 Building $277,678
2023$6,951.00 (+1.88%) Homeowner's exemption$533,794 Land $266,897 Building $266,897$1,663,020
2022$6,823.00

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
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

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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