20330 Forest Ave, Castro Valley, CA 94546 Property Records

Alameda County property record for 20330 Forest Ave, Castro Valley, CA 94546

Property Summary

Property TypeSingle Family Home
Details2 bd · 2 ba · 1,675 sqft · built 1941
Lot Size0.115 acres (5,016 sqft)
OwnerCompany Name on File
Last Sale$650,000 (Jan 2007)
Tax Bill$11,144 (2025)
Flood ZoneZone X (minimal risk)
APN84C-713-5-2

Property Details

APN / Parcel Number

Primary APN84C-713-5-2
Alternative APN
  • 084C-0713-005-02

Interior

Bedrooms2 Beds
Full Baths2 Baths
Total Rooms5 Rooms
Stories2 Stories
Building Area1,675 sqft Living Area

Exterior

Year BuiltBuilt 1941
Effective Year BuiltEffective 1946
Architectural StyleL-Shape
Construction TypeWood
Lot Area5,016 sqft (0.115 acres)
Garage TypeCarport
CarportCarport

Location & Zoning

Street Address20330 FOREST AVE
CityCASTRO VALLEY
StateCA
Zip94546-4525
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT: 00002 BLK: 0005 AR: 084C PAGE: 0713
JurisdictionALAMEDA CA
Township / Civil DivisionHAYWARD
Census Block Group4
Census Block4001
Census Tract430800

Owner

20330 Forest Ave is owned by a company that acquired it in December 2012.

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

Owner of RecordCompany Name on File
Mailing Address403 JUNCTION AVE, 117, LIVERMORE, CA 94551-5949
Owner TypeCompany
VestingPartnership

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
Last SaleJan 5, 2007 · Amount on File
Deed SaleJan 5, 2007 · Amount on File
Deed Document Number20075123
Last Transfer DateDec 20, 2012
Transfer Doc0000429977
Record UpdatedOct 29, 2026

Tax Assessment & Valuation

The 2025 property tax bill for 20330 Forest Ave was $11,144.

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)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$888,204 (+2%) Land $266,461 Building $621,743
2025$11,144.00$870,791 Land $261,237 Building $609,554
2023$10,731.00$836,984 Land $251,095 Building $585,889$925,920

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

Flood

FEMA maps place 20330 Forest Ave in Zone X, an area of minimal flood risk.

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
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies1 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

Wildfire risk around 20330 Forest Ave is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire RiskLow
lower than 94% of the US · lower than 96% of California
Wildfire LikelihoodUnder 0.01% 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 777 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Sonic Telecom
Fiber
10,000 / 10,000
AT&T
Fiber · DSL · Fixed Wireless 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.

Nearby Properties on Forest Ave

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