3863 Diablo St, Napa, CA 94558 Property Records

Napa County property record for 3863 Diablo St, Napa, CA 94558

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,122 sqft · built 1965
Lot Size	0.13 acres (5,663 sqft)
Owner	Individual Name on Record
Tax Bill	$2,769 (2026)
Deeds & Mortgages	Jul 2021 Line of Credit Oct 2019 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`038-284-020-000`

Property Details

APN / Parcel Number

Primary APN	`038-284-020-000`
Alternative APNs	`038-284-020` `03828420`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Building Area	1,122 sqft Living Area
Gross Area	1,586 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1965
Construction Type	Wood
Lot Area	5,663 sqft (0.13 acres)
Garage Type	Attached
Garage Area	464 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	None
Heating System	HVAC

Location & Zoning

Old Parcel Number	038-284-020
Street Address	3863 DIABLO ST
City	NAPA
State	CA
Zip	94558-2303
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RS5
Legal Description	LOT 147 N-BEL-AIRE PARK NO 3 7R/M36
Legal Subdivision	NORTH BEL-AIRE PARK #3
Legal Lot Number	147
Jurisdiction	NAPA CA
Township / Civil Division	NAPA
Census Block Group	2
Census Block	2001
Census Tract	200601

Owner

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

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

Owner of Record	Individual Name on Record
Mailing Address	1401 SYLVANER AVE, SAINT HELENA, CA 94574-2365
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 13, 2021	Deed of Trust, Mortgage · Line of Credit UMPQUA BANK
Oct 8, 2019	Quit Claim Deed, Transfer COMMONWEALTH LAND TITLE INSURANCE, COMMONWEALTH LAND TITLE
Oct 8, 2019	Quit Claim Deed, Transfer COMMONWEALTH LAND TITLE INSURANCE, COMMONWEALTH LAND TITLE CO.
Oct 8, 2019	Intrafamily Transfer, Transfer COMMONWEALTH LAND TITLE CO

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Oct 1, 2019
Transfer Doc	0000020611
Record Updated	Oct 29, 2026

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NAPA CA
Property Address	3863 DIABLO ST, NAPA, CA 94558-2303
Transaction Type	Mortgage
Record Updated	Jul 22, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3863 DIABLO ST, NAPA, CA 94558-2303

Mortgage

Document Number	0000023045
Date	Jul 13, 2021
Instrument	2021-0023045

Lender

Name	UMPQUA BANK
Type	Bank
Address	NAPA, CA 94558

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

October 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	NAPA CA
Recording Date	Oct 8, 2019
Property Address	3863 DIABLO ST, NAPA, CA 94558-2303
Document Number	0000020613
Instrument Date	Oct 1, 2019
Instrument	20613
Transaction Type	Transfer
Record Updated	Oct 23, 2019
Title Company	COMMONWEALTH LAND TITLE INSURANCE, COMMONWEALTH LAND TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	3863 DIABLO ST NAPA CA 945582303, NAPA, CA 94558-2303

October 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	NAPA CA
Recording Date	Oct 8, 2019
Property Address	3863 DIABLO ST, NAPA, CA 94558-2303
Document Number	0000020611
Instrument Date	Oct 1, 2019
Instrument	20611
Transaction Type	Transfer
Record Updated	Oct 24, 2019
Title Company	COMMONWEALTH LAND TITLE INSURANCE, COMMONWEALTH LAND TITLE CO.

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	3863 DIABLO ST NAPA CA 945582303, NAPA, CA 94558-2303

October 2019: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	NAPA CA
Recording Date	Oct 8, 2019
Property Address	3863 DIABLO ST, NAPA, CA 94558-2303
Document Number	0000020610
Map Reference	MB 7 PG 35&36
Instrument Date	Oct 1, 2019
Instrument	2019-0020610
Transaction Type	Transfer
Record Updated	Aug 12, 2021
Title Company	COMMONWEALTH LAND 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
Address	3863 DIABLO ST, NAPA, CA 94558-2303

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	$2,769.00 (+2.37%) Homeowner's exemption	$179,607 (+2%) Land $73,952 Building $105,655	$179,607 Land $73,952 Building $105,655
2025	$2,705.00 (+4.04%) Homeowner's exemption	$176,086 (+4.04%) Land $72,502 Building $103,584
2023	$2,600.00 (+1.17%) Homeowner's exemption	$169,250 Land $69,688 Building $99,562
2022	$2,570.00

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
Nearest Special Flood Hazard Area	Zone AO, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	4 in force
Nearby Flood Claims	1 (1986)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 1986 · Severe Storms & Flooding

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	Not 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 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 505 locations within half a mile, as of December 31, 2025

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

May also be available: T-Mobile.

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