1817 Main St, Saint Helena, CA 94574 Property Records

Napa County property record for 1817 Main St, Saint Helena, CA 94574

Property Summary

Property Type	Triplex
Details	5 bd · 5.5 ba · 5,246 sqft · built 1875
Lot Size	1.56 acres (67,954 sqft)
Owner	2 Individual Names on File
Last Sale	$4,000,000 (Oct 2023)
Tax Bill	$44,163 (2026)
Deeds & Mortgages	Oct 2023 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`009-490-006-000`

Property Details

APN / Parcel Number

Primary APN	`009-490-006-000`
Alternative APNs	`009-490-006` `00949006`

Interior

Bedrooms	5 Beds
Full Baths	5.5 Baths
Half Baths	1 Half Bath
Building Area	5,246 sqft Living Area

Exterior

Year Built	Built 1875
Effective Year Built	Effective 1875
Architectural Style	Triplex
Lot Area	67,954 sqft
Total Buildings	3 Buildings

Location & Zoning

Old Parcel Number	009-490-006
Street Address	1817 MAIN ST
City	SAINT HELENA
State	CA
Zip	94574-1000
Property Category	Residential
Property Type	Residential > Multi-Unit > Triplex
Legal Description	PCL 1 MAP NO 2025 2P/M87 H 009490010000 009490010000 P
Legal Subdivision	2-87, PARCEL MAP
Jurisdiction	NAPA CA
Township / Civil Division	ST. HELENA
Census Block Group	2
Census Block	2006
Census Tract	201602

Owner

1817 Main St, a triplex, is owned and occupied by two individuals who bought it in October 2023.

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

Owner of Record	2 Individual Names on File
Mailing Address	1817 MAIN ST, SAINT HELENA, CA 94574-1000
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 11, 2023 · Amount on File
Deed Sale	Oct 11, 2023 · Amount on File
Deed Document Number	202316366
Prior Transfer Date	Jun 8, 2015
Prior Transfer Doc	0000015083
Record Updated	Oct 29, 2026

October 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	NAPA CA
Recording Date	Oct 11, 2023
Property Address	1817 MAIN ST, SAINT HELENA, CA 94574-1000
Document Number	0000016366
Map Reference	MB 2 PG 87
Instrument Date	Jun 18, 2015
Instrument	2023-0016366
Transaction Type	Transfer
Record Updated	Oct 20, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

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
Relationship	Community Property with Right of Survivorship
Address	1817 MAIN ST, SAINT HELENA, CA 94574-1000

Mortgage

Document Number	0000016367
Date	Oct 11, 2023
Instrument	2023-0016367

Lender

Name	MISSION LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Nov 1, 2053

Tax Assessment & Valuation

The 2026 property tax bill for 1817 Main St was $44,163, up 1.7% from the year before.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$44,163.00 (+1.73%)	$4,161,600 (+2%) Land $1,851,912 Building $2,309,688	$4,161,600 Land $1,851,912 Building $2,309,688
2025	$43,410.00	$4,080,000 Land $1,815,600 Building $2,264,400
2023	$2,938.00 (+3.93%)	$267,292 Land $53,266 Building $214,026
2022	$2,827.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 1817 Main St in Zone X, an area of minimal flood risk, though there have been 8 flood claims nearby since 1995.

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
Nearby Flood Policies	7 in force
Nearby Flood Claims	8 (1995–2005)
Claims Outside the SFHA	5 of 8
Most Recent Claim	Dec 2005 · Severe Storms, Flooding, Mudslides, And Landslides
Claims by Event	Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 2 claims Severe Winter Storms, Flooding Landslides, Mud Flow, Mar 1995 · 3 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

Wildfire risk around 1817 Main St is low, with 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 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	Indirect 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 ST. HELENA serves 5,386 people · EPA ID CA2810004
Water Source	Surface water
Last State Inspection	Feb 2025
Lead	Under 1 ppb (2024–2026) action level 15 ppb

Violations Reported to EPA

Water Quality	Haloacetic acids not recorded as resolved · Jul 2023 Treatment failure resolved · Nov 2020
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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 138 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

May also be available: Valley Internet.

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