306 Underhill Dr, Napa, CA 94558 Property Records

Napa County property record for 306 Underhill Dr, Napa, CA 94558

Property Summary

Property Type	Condominium
Details	2 bd · 1.5 ba · 1,201 sqft · built 1990
Lot Size	0.04 acres (1,742 sqft)
Owner	Individual Name on File
Last Sale	$570,000 (Jun 2022)
Tax Bill	$7,645 (2026)
Deeds & Mortgages	Jun 2022 Sale & Mortgage Feb 2021 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`004-660-012-000`

Property Details

APN / Parcel Number

Primary APN	`004-660-012-000`
Alternative APNs	`004-660-012` `00466012`

Interior

Bedrooms	2 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	2 Stories
Building Area	1,201 sqft Living Area
Gross Area	1,487 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1990
Effective Year Built	Effective 1990
Architectural Style	Condo/Apartment
Construction Type	Wood
Lot Area	1,742 sqft (0.04 acres)
Garage Type	Attached
Garage Area	286 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC

Location & Zoning

Old Parcel Number	004-660-012
Street Address	306 UNDERHILL DR
City	NAPA
State	CA
Zip	94558-6163
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	RM
Legal Description	LOT 12 CHARLSON PARK SUB UNIT NO 3 16R/M100 CC&R 1677/654;1739/140,2
Legal Subdivision	CHARLSON PARK #1,#2,#3
Legal Lot Number	12
Jurisdiction	NAPA CA
Township / Civil Division	NAPA
Census Block Group	1
Census Block	1001
Census Tract	200802

Owner

306 Underhill Dr, a condominium, is owned and occupied by an individual who bought it in June 2022.

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

Owner of Record	Individual Name on File
Mailing Address	306 UNDERHILL DR, NAPA, CA 94558-6163
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jun 30, 2022	Grant Deed, Transfer · Conventional Mortgage NAVY FCU
Feb 16, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage REDWOOD CU
Dec 13, 2019	Deed of Trust, Mortgage · Line of Credit BANK OF THE WEST

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 30, 2022 · Amount on File
Deed Sale	Jun 30, 2022 · Amount on File
Prior Sale	Nov 24, 1997 · Amount on File
Deed Document Number	202212965
Prior Transfer Date	Dec 28, 2000
Prior Transfer Doc	0000000306
Record Updated	Oct 29, 2026

June 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	NAPA CA
Recording Date	Jun 30, 2022
Property Address	306 UNDERHILL DR, NAPA, CA 94558-6163
Document Number	0000012965
Map Reference	MB 16 PG 100&101
Instrument Date	May 19, 2022
Instrument	2022-0012965
Transaction Type	Transfer
Record Updated	Jul 8, 2022
Title Company	NAVY FEDERAL TITLE/CALIFORNIA, NAVY FEDERAL TITLE OF CA INC

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	306 UNBDER HILL DRIVE, NAPA, CA 94558-6163

Mortgage

Document Number	0000012966
Date	Jun 30, 2022
Instrument	2022-0012966

Lender

Name	NAVY FCU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2052

February 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	NAPA CA
Recording Date	Feb 16, 2021
Property Address	306 UNDERHILL DR, NAPA, CA 94558-6163
Document Number	0000006385
Map Reference	MB 16 PG 100&101
Instrument Date	Feb 4, 2021
Instrument	2021-0006385
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	2471 SOLANO AVE # 202, 202, NAPA, CA 94558-4645

Mortgage

Document Number	0000006386
Date	Feb 16, 2021
Instrument	2021-0006386

Lender

Name	REDWOOD CU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2051

December 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NAPA CA
Property Address	306 UNDERHILL DR, NAPA, CA 94558-6163
Document Number	0000001568
Instrument Date	Dec 13, 2019
Transaction Type	Mortgage
Record Updated	Feb 6, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	2471 SOLANO AVE #202 NAPA CA 945584645, 202, NAPA, CA 94558-4645

Mortgage

Document Number	0000001568
Date	Jan 23, 2020
Instrument	1568

Lender

Name	BANK OF THE WEST
Type	Bank
Address	OMAHA, NE 68154

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Jan 22, 2050

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2026 property tax bill for 306 Underhill Dr was $7,645, up 2.1% from the year before.

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	$7,645.00 (+2.14%)	$616,983 (+2%) Land $278,183 Building $338,800	$616,983 (+2%) Land $278,183 Building $338,800
2025	$7,485.00	$604,886 Land $272,729 Building $332,157	$604,886 Land $272,729 Building $332,157
2023	$7,168.00 (+177.08%)	$581,400 Land $262,140 Building $319,260
2022	$2,587.00

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

Flood

FEMA maps place 306 Underhill Dr in Zone X, an area of minimal flood risk.

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

Wildfire risk around 306 Underhill Dr is low, with less than a 0.01% annual chance of 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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