18542 Walnut Rd, Castro Valley, CA 94546 Property Records

Alameda County property record for 18542 Walnut Rd, Castro Valley, CA 94546 · Last verified January 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms3 Baths
Year BuiltBuilt 1976
Square Footage1,961 sqft Living Area
Lot Size9,408 sqft (0.215 acres)
OccupancyOwner Occupied
Last Sale$410,000 (2009)
Tax Bill$7,047.00 (2025)

Property Details

APN / Parcel Number

Primary APN84D-1168-32-7
Alternative APN
  • 084D-1168-032-07

Interior

Bedrooms3 Beds
Full Baths3 Baths
Partial Baths1 Partial Baths
Total Rooms8 Rooms
Building Area1,961 sqft Living Area
Stories1 Stories

Exterior

Year BuiltBuilt 1974
Effective Year BuiltEffective 1976
Architectural StyleOther Style
Construction TypeWood Construction
Lot Area9,408 sqft (0.215 acres)

Location & Zoning

Street Address18542 WALNUT RD
CityCASTRO VALLEY
StateCA
Zip94546-2144
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionSUBD:CASTRO VALLEY ORCHARDS
Legal SubdivisionCASTRO VALLEY ORCHARDS
JurisdictionALAMEDA CA
Minor Civil DivisionHAYWARD
Census Blockgroup1
Census Block1005
Census Tract430300

Owner

Source: Alameda County records · APN 84D-1168-32-7

Assessment roll updated July 1, 2025 · Last verified January 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Owner Names on File
Mailing Address18542 WALNUT RD, CASTRO VALLEY, CA 94546-2144
OccupancyOwner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleAug 18, 2009 · Amount on Record
Deed SaleAug 18, 2009 · Amount on Record
Prior SaleJan 28, 2009 · Amount on Record
Deed Doc Number2009270716
Record RefreshedJun 08, 2026

Tax Assessment & Valuation

Source: Alameda County records · Assessment roll updated July 1, 2025 · Last verified January 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

YearTax BillAssessed Value
2025$7,047.00 (+3.13%)$529,198 (+4.04%) Land $158,759 Building $370,439
2023$6,833.00$508,653 Land $152,596 Building $356,057

Flood & Wildfire

18542 Walnut Rd is in FEMA Zone X (minimal flood hazard (unshaded X)), outside the Special Flood Hazard Area, with indirect wildfire exposure (Low risk).

Flood

Source: FEMA National Flood Hazard Layer · Alameda County (06001C), updated May 25, 2026

FEMA Flood ZoneZone X
minimal flood hazard (unshaded X)
Special Flood Hazard AreaNo

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024)

Wildfire Risk to HomesLow
20th percentile of exposed land nationally · 11th in California
Wildfire LikelihoodLow — about 1 in 3,030 per year
ExposureIndirect
within ember reach of burnable land · adjoins burnable vegetation

Lookups use the parcel center point against federal datasets; a lot that straddles a boundary may differ at its edges, and lenders make the official flood determination. Wildfire values come from a national model at roughly 900 ft resolution with fuels as of 2020 and describe conditions, not a forecast.

Nearby Properties on Walnut Rd

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