30100 Ahern Ave, Union City, CA 94587 Property Records

Alameda County property record for 30100 Ahern Ave, Union City, CA 94587

Property Summary

Property TypeWarehouse, Storage
Details100,080 sqft · built 1975
Lot Size4.23 acres (184,259 sqft)
OwnerCompany Name on Record
Tax Bill$120,246 (2025)
Flood ZoneZone X (minimal risk)
APN463-45-21

Property Details

APN / Parcel Number

Primary APN463-45-21
Alternative APN
  • 463-0045-021-00

Interior

Stories1 Story
Building Area100,080 sqft Total Area

Exterior

Year BuiltBuilt 1975
Effective Year BuiltEffective 1975
Architectural StyleL-Shape
Construction TypeMasonry / Concrete Block
Fire ResistanceMasonry Walls, Wood Interior
Lot Area184,259 sqft

Location & Zoning

Street Address30100 AHERN AVE
CityUNION CITY
StateCA
Zip94587-1202
Property CategoryIndustrial
Property TypeIndustrial > Warehouse, Storage
Legal DescriptionLOT: 00001 BLK: PM: 0080 PAGE: 0093 ;LOT: 00002 BLK: PM: 0080 PAGE: 0093 ;LOT: 00003 BLK: PM: 0080 PAGE: 0093
JurisdictionALAMEDA CA
Township / Civil DivisionFREMONT
Census Block Group1
Census Block1016
Census Tract440333

Owner

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

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

Owner of RecordCompany Name on Record
Mailing AddressPO BOX 30428, CHARLOTTE, NC 28230-0428
Owner TypeCompany
VestingCompany

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
MunicipalityUnion City
Unified School DistrictNew Haven Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$8,814,229 (+2%) Land $2,618,679 Building $6,195,550
2025$120,246.00 (+5.36%)$8,641,435 (+4.04%) Land $2,567,342 Building $6,074,093
2023$114,126.00$8,305,953 Land $2,467,672 Building $5,838,281

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

Flood

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 Policies2 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

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

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% 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 SystemALAMEDA COUNTY WATER DISTRICT
serves 344,000 people · EPA ID CA0110001
Water SourceSurface water
Last State InspectionNov 2025
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 43 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Tekify Fiber & Wireless
Fixed Wireless
1,000 / 1,000
Unwired
Fixed Wireless
300 / 25

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

Nearby Properties on Ahern Ave

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