3797 E Castro Valley Blvd, Castro Valley, CA 94552 Property Records

Alameda County property record for 3797 E Castro Valley Blvd, Castro Valley, CA 94552

Property Summary

Property TypeGovernment / Public Use
Lot Size0.49 acres (21,339 sqft)
OwnerCompany Name on File
Flood ZoneZone X (minimal risk)
APN85-6300-7-3

Property Details

APN / Parcel Number

Primary APN85-6300-7-3
Alternative APN
  • 085-6300-007-03

Exterior

Lot Area21,339 sqft (0.49 acres)

Location & Zoning

Street Address3797 E CASTRO VALLEY BLVD
CityCASTRO VALLEY
StateCA
Zip94552-4835
Property CategoryPublic Works
Property TypePublic Works > Government / Public Use
Legal DescriptionRANCHO: MISC
JurisdictionALAMEDA CA
Township / Civil DivisionHAYWARD
Census Block Group1
Census Block1013
Census Tract430101

Owner

3797 E Castro Valley Blvd, a public works property, is owned by a company.

Source: Alameda County records, as of August 5, 2026

Owner of RecordCompany Name on File
Mailing AddressPO BOX 23440, OAKLAND, CA 94623-0440
Owner TypeCompany

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 NamesName on Deed
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyAlameda County
Unified School DistrictCastro Valley Unified School District (KG - 12)

Flood

FEMA maps place 3797 E Castro Valley Blvd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.

Source: FEMA National Flood Hazard Layer, effective May 25, 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 Claims1 (1998)
Claims Outside the SFHA1 of 1
Most Recent ClaimFeb 1998 · Severe Winter Storms And Flooding

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

Wildfire risk around 3797 E Castro Valley Blvd is low, with a 0.05% annual chance of wildfire.

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

Wildfire RiskLow
lower than 64% of the US · lower than 78% of California
Wildfire Likelihood0.05% 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 SystemEAST BAY MUD
serves 1,468,000 people · EPA ID CA0110005
Water SourceSurface water
Last State InspectionDec 2021
LeadUnder 1 ppb (2022–2024)
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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 211 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Unwired
Fixed Wireless
300 / 25
Verizon
Fixed Wireless
300 / 20
Starlink
Satellite
280 / 30
AT&T
DSL · Fiber, Fixed Wireless in parts of the area
100 / 20

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

Nearby Properties on E Castro Valley Blvd

Nearby Streets

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