341 Grunion Ct, Foster City (San Mateo), CA 94404 Property Records

San Mateo County property record for 341 Grunion Ct, Foster City, CA 94404

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,860 sqft · built 1966
Lot Size0.14 acres (6,089 sqft)
Owner2 Trust Names on File
Last Sale$820,000 (Oct 2011)
Tax Bill$12,320 (2025)
Flood ZoneZone X (reduced by levee)
APN094-303-110

Property Details

APN / Parcel Number

Primary APN094-303-110

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Building Area1,860 sqft Living Area
1st Floor Area1,860 sqft
Family RoomFamily Room

Exterior

Year BuiltBuilt 1966
Effective Year BuiltEffective 1966
Lot Area6,089 sqft (0.14 acres)
Lot Dimensions95 ft deep x 65 ft wide
View / LotCorner
Garage Area420 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral

Location & Zoning

Street Address341 GRUNION CT
CityFOSTER CITY
StateCA
Zip94404-1922
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR10006
Legal DescriptionLOT 468 FOSTER CITY NEIGHBORHOOD NO 3 UNIT NO 2 RSM 62/43 50
Legal SubdivisionFOSTER CITY NEIGHBORHOOD NO 3 UNIT NO 2
Legal Lot Number468
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group2
Census Block2007
Census Tract608300

Owner

341 Grunion Ct is held in a trust since October 2011.

Source: San Mateo County records, as of August 14, 2026

Owner of Record2 Trust Names on File
Mailing Address3439 BARHITE ST, PASADENA, CA 91107-1258
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

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleOct 28, 2011 · Amount on File
Deed SaleOct 28, 2011 · Amount on File
Prior SaleMar 29, 2007 · Amount on File
Deed Document Number2011129011
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

The 2025 property tax bill for 341 Grunion Ct was $12,320.

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountySan Mateo County
MunicipalityFoster 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$1,050,552 (+2%) Land $525,276 Building $525,276
2025$12,320.00$1,029,954 Land $514,977 Building $514,977
2023$11,891.00 (+1.36%)$989,962 Land $494,981 Building $494,981$1,620,990
2022$11,732.00

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

Flood

FEMA maps place 341 Grunion Ct in Zone X, where a levee reduces flood risk.

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

FEMA Flood ZoneZone X
reduced by levee · depends on levee performance
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies6 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

The area around 341 Grunion Ct 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 SystemESTERO MUNICIPAL IMPROVEMENT DISTRICT
serves 36,556 people · EPA ID CA4110021
Water SourcePurchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State InspectionNov 2024
LeadUnder 1 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 636 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
Verizon
Fixed Wireless
300 / 20
Etheric Networks
Fixed Wireless
250 / 100
T-Mobile
Fixed Wireless
100 / 20

May also be available: GeoLinks, Sail Internet.

Nearby Properties on Grunion Ct

Nearby Streets

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