4321 Walnut Ave, Irvine, CA 92604 Property Records

Orange County property record for 4321 Walnut Ave, Irvine, CA 92604 · Last verified August 2026

Property Highlights

Property TypeOther > Exempt (Full or Partial)
Lot Size37.3 acres
Tax Bill$2,091.00 (2025)

Owner

Source: Orange County records · APN 449-021-11

Assessment roll updated August 4, 2026 · Last verified August 2026

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

Owner of RecordCompany Name on File
Mailing Address5050 BARRANCA PKWY, IRVINE, CA 92604-4652
Owner TypeOwner is a Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Record RefreshedSep 20, 2026

Tax Assessment & Valuation

Source: Orange County records · Assessment roll updated August 4, 2026 · Last verified August 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyOrange County
MunicipalityIrvine City
Unified School DistrictIrvine 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
2026$25,556,998 (+2%) Land $5,326,010 Building $20,230,988
2025$2,091.00 (+16.1%) Additional exemption filed$25,055,881 (+4.04%) Land $5,221,579 Building $19,834,302
2023$1,801.00 (+3.51%) Additional exemption filed$24,082,932 Land $5,018,819 Building $19,064,113
2022$1,740.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Orange County (06059C), updated September 27, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Property Details

APN / Parcel Number

Primary APN449-021-11

Exterior

Lot Area1,625,163 sqft

Location & Zoning

Street Address4321 WALNUT AVE
CityIRVINE
StateCA
Zip92604-2239
Property UsageOther Property Usage
TypeOther > Exempt (Full or Partial)
Legal DescriptionA TR IRVINE SUB BLK 85 LOT 183 IRVINE SUB LOT 183 BLK 85 POR OF LOT AND POR OF
Legal SubdivisionIRVINE SUB
Legal Tract361
Legal Block85
Legal Lot Number183
JurisdictionORANGE CA
Minor Civil DivisionIRVINE-LAKE FOREST
Census Blockgroup2
Census Block2014
Census Tract52526

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