451 Riverside Dr, Napa, CA 94559 Property Records

Napa County property record for 451 Riverside Dr, Napa, CA 94559

Property Summary

Property TypeApartment House (2-4 Units)
Details12 bd · 6 ba · 4,488 sqft · built 1965
Lot Size0.21 acres (9,185 sqft)
OwnerIndividual Name on Record
Last Sale$1,050,000 (Dec 2016)
Tax Bill$17,446 (2025)
Flood ZoneZone X (moderate risk)
APN005-103-004-000

Property Details

APN / Parcel Number

Primary APN005-103-004-000
Alternative APN
  • 00510304

Interior

Bedrooms12 Beds
Full Baths6 Baths
Total Rooms24 Rooms
Building Area4,488 sqft Total Area

Exterior

Year BuiltBuilt 1965
Construction TypeWood
Lot Area9,185 sqft (0.21 acres)

Location & Zoning

Old Parcel Number00510304
Street Address451 RIVERSIDE DR
CityNAPA
StateCA
Zip94559-3801
Property CategoryCommercial
Property TypeResidential > Multi-Unit > Apartment House (2-4 Units)
Local Zoning CodeRT 5
Legal DescriptionSTHRN 70 FT LOT 2 BLK B NAPA ABAJO SUB BK D OF DEEDS PG 110 H 005103005000 005103005000
Legal SubdivisionNAPA ABAJO SUB
Legal BlockB
Legal Lot Number2
JurisdictionNAPA CA
Township / Civil DivisionNAPA
Census Block Group3
Census Block3002
Census Tract200202

Owner

Source: Napa County records, as of December 1, 2025

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

Owner of RecordIndividual Name on Record
Co-ownerCo-owner on Record
Mailing Address3311 LINDA MESA WAY, NAPA, CA 94558-4232
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 12, 2016 · Amount on Record
Deed SaleDec 12, 2016 · Amount on Record
Prior SaleFeb 5, 2015
Deed Document Number2016-0031705
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

Source: Napa County assessment roll, as of July 1, 2025

Property Jurisdictions

TypeName
StateCalifornia
CountyNapa County
MunicipalityNapa City
Unified School DistrictNapa Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2025$17,446.00 (+6.64%)$1,218,612 (+4.04%) Land $638,320 Building $580,292
2023$16,360.00 (+2.33%)$1,171,293 Land $613,534 Building $557,759
2022$15,987.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective June 25, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
moderate risk
500-Year FloodplainYes
0.2% annual chance
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 27 policies
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies27 in force
Nearby Flood Claims24 (1983–2006)
Claims Outside the SFHA2 of 24
Most Recent ClaimFeb 2006 · rainfall accumulation
Claims by Event
  • Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 6 claims
  • Severe Storms & Flooding, Feb 1986 · 16 claims

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 RiskNot rated
no burnable land within 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 SystemCITY OF NAPA
serves 84,804 people · EPA ID CA2810003
Water SourceSurface water
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 440 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · Fixed Wireless, DSL in parts of the area
5,000 / 5,000
Xfinity
Cable · Fiber in parts of the area
2,000 / 250
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

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