321 Underhill Dr, Napa, CA 94558 Property Records

Napa County property record for 321 Underhill Dr, Napa, CA 94558

Property Summary

Property Type	Duplex
Details	4 bd · 3 ba · 2,156 sqft · built 1990
Lot Size	0.24 acres (10,454 sqft)
Owner	Company Name on Record
Last Sale	$949,000 (Apr 2025)
Tax Bill	$12,486 (2026)
Deeds & Mortgages	Jan 2022 Mortgage Jul 2019 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`004-372-015-000`

Property Details

APN / Parcel Number

Primary APN	`004-372-015-000`
Alternative APNs	`004-372-015` `00437215`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Building Area	2,178 sqft Living Area
Gross Area	2,618 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1990
Effective Year Built	Effective 1990
Architectural Style	Duplex Single
Construction Type	Wood
Lot Area	10,454 sqft (0.24 acres)
Garage Type	Attached
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Old Parcel Number	004-372-015
Street Address	321 UNDERHILL DR
City	NAPA
State	CA
Zip	94558-7400
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	RM
Legal Subdivision	COVENTRY MANOR
Jurisdiction	NAPA CA
Township / Civil Division	NAPA
Census Block Group	1
Census Block	1001
Census Tract	200802

Owner

Source: Napa County records, as of October 21, 2026

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

Owner of Record	Company Name on Record
Mailing Address	2340 CAMINITO CALA, DEL MAR, CA 92014-3737
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Jan 20, 2022	Deed of Trust, Mortgage · Conventional Mortgage FINANCE OF AMERICA MORTGAGE LLC
Jul 8, 2019	Deed of Trust, Mortgage · Conventional Mortgage NATIONAL BANK OF KANSAS CITY

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 7, 2025 · Amount on Record
Deed Sale	Apr 7, 2025 · Amount on Record
Prior Sale	Nov 4, 2004 · Amount on Record
Deed Document Number	20254832
Prior Transfer Date	Jul 27, 2011
Prior Transfer Doc	0000018843
Record Updated	Oct 29, 2026

January 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NAPA CA
Property Address	321 UNDERHILL DR, NAPA, CA 94558-7400
Transaction Type	Mortgage
Record Updated	Jan 28, 2022
Title Company	BOSTON NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	707 HARRY JAMES CT, WINDSOR, CA 95492-7559

Mortgage

Document Number	0000001177
Date	Jan 20, 2022
Instrument	2022-0001177

Lender

Name	FINANCE OF AMERICA MORTGAGE LLC
Type	Mortgage Company
Address	CONSHOHOCKEN, PA 19428

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	359 Months
Due	Dec 1, 2051

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NAPA CA
Property Address	321 UNDERHILL DR, NAPA, CA 94558-7400
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000012931
Date	Jul 8, 2019
Instrument	2019-0012931

Lender

Name	NATIONAL BANK OF KANSAS CITY
Type	Bank
Address	KANSAS CITY, MO 64114

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jul 1, 2049

Tax Assessment & Valuation

Source: Napa County assessment roll, as of October 21, 2026

Property Jurisdictions

Type	Name
State	California
County	Napa County
Municipality	Napa City
Unified School District	Napa Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$12,486.00 (+10.86%)	$967,980 (+12.05%) Land $408,000 Building $559,980	$967,980 (+12.05%) Land $408,000 Building $559,980
2025	$11,263.00 (+4.8%)	$863,907 (+4.04%) Land $421,500 Building $442,407	$863,907 Land $421,500 Building $442,407
2023	$10,747.00 (+1.28%)	$830,363 Land $405,134 Building $425,229
2022	$10,611.00

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

Flood

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	1 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 Risk	Low lower than 98% of the US · lower than 98.4% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None 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 System	CITY OF NAPA serves 84,804 people · EPA ID CA2810003
Water Source	Surface water
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 578 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: T-Mobile, Verizon.

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