1057 Pratt Ave, Saint Helena, CA 94574 Property Records

Napa County property record for 1057 Pratt Ave, Saint Helena, CA 94574

Property Summary

Property Type	Duplex
Details	4 bd · 3.5 ba · 3,121 sqft · built 2021
Lot Size	0.36 acres (15,682 sqft)
Owner	2 Individual Names on File
Last Sale	$4,600,000 (May 2023)
Tax Bill	$51,801 (2026)
Deeds & Mortgages	May 2023 Sale Jun 2018 Sale
Flood Zone	Zone X (minimal risk)
APN	`009-142-003-000`

Property Details

APN / Parcel Number

Primary APN	`009-142-003-000`
Alternative APNs	`009-142-003` `00914203`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	3,121 sqft Living Area

Exterior

Year Built	Built 2021
Effective Year Built	Effective 2021
Architectural Style	Duplex Single
Construction Type	Wood
Lot Area	15,682 sqft (0.36 acres)
Garage Type	Detached
Garage Area	598 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC

Location & Zoning

Old Parcel Number	009-142-003
Street Address	1057 PRATT AVE
City	SAINT HELENA
State	CA
Zip	94574-1036
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Subdivision	HACKNEY, ELIZABETH L. TRACT
Legal Lot Number	3
Jurisdiction	NAPA CA
Township / Civil Division	ST. HELENA
Census Block Group	2
Census Block	2008
Census Tract	201602

Owner

1057 Pratt Ave, a duplex, is owned by two individuals who bought it in May 2023.

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

Owner of Record	2 Individual Names on File
Mailing Address	129 5 MILE RIVER RD, DARIEN, CT 06820-6235
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

Date	Document
May 8, 2023	Grant Deed, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Jun 26, 2018	Grant Deed, Transfer OLD REPUBLIC TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 8, 2023 · Amount on File
Deed Sale	May 8, 2023 · Amount on File
Prior Sale	Jun 26, 2018 · Amount on File
Deed Document Number	20236915
Prior Transfer Date	Jan 6, 2014
Prior Transfer Doc	0000001424
Record Updated	Oct 29, 2026

May 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	NAPA CA
Recording Date	May 8, 2023
Property Address	1057 PRATT AVE, SAINT HELENA, CA 94574-1036
Document Number	0000006915
Map Reference	MB 1 PG 97
Instrument Date	May 4, 2023
Instrument	2023-0006915
Transaction Type	Transfer
Record Updated	Aug 1, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount 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	129 5 MILE RIVER RD, DARIEN, CT 06820-6235

June 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	NAPA CA
Recording Date	Jun 26, 2018
Property Address	1057 PRATT AVE, SAINT HELENA, CA 94574-1036
Document Number	0000012566
Instrument Date	Jun 22, 2018
Instrument	12566
Transaction Type	Transfer
Record Updated	Jul 10, 2018
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Tax	$913.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	116 27TH ST SAN FRANCISCO CA 941104313, SAN FRANCISCO, CA 94110-4313

Tax Assessment & Valuation

The 2026 property tax bill for 1057 Pratt Ave was $51,801, 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	$51,801.00 (+1.73%)	$4,881,556 (+2%) Land $1,353,040 Building $3,528,516	$4,881,556 (+2%) Land $1,353,040 Building $3,528,516
2025	$50,918.00	$4,785,840 Land $1,326,510 Building $3,459,330	$4,785,840 Land $1,326,510 Building $3,459,330
2023	$39,758.00 (+97.99%)	$3,707,725 Land $907,725 Building $2,800,000
2022	$20,081.00

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

Flood

FEMA maps place 1057 Pratt Ave 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 1057 Pratt Ave 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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