958 McCorkle Ave, Saint Helena, CA 94574 Property Records

Napa County property record for 958 McCorkle Ave, Saint Helena, CA 94574

Property Summary

Property Type	Duplex
Details	4 bd · 3 ba · 1,566 sqft · built 1999
Lot Size	0.1 acres (4,356 sqft)
Owner	Company Name on File
Last Sale	$690,000 (Jul 2015)
Tax Bill	$8,883 (2026)
Deeds & Mortgages	May 2018 Transfer Dec 2017 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`009-090-053-000`

Property Details

APN / Parcel Number

Primary APN	`009-090-053-000`
Alternative APNs	`009-090-053` `00909053`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Half Baths	2 Half Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,566 sqft Living Area

Exterior

Year Built	Built 1999
Effective Year Built	Effective 1999
Architectural Style	Duplex Single
Construction Type	Wood
Lot Area	4,356 sqft (0.1 acres)
Garage Type	Detached
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC

Location & Zoning

Old Parcel Number	009-090-053
Street Address	958 MCCORKLE AVE
City	SAINT HELENA
State	CA
Zip	94574-1329
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Description	PCL 4 22P/M19-21 PTN LOTS 9 & 10 SCHOOL SITE TRACT 2R/M31
Legal Subdivision	ROBERT P SHERIDAN
Legal Tract	2
Legal Lot Number	9
Jurisdiction	NAPA CA
Township / Civil Division	ST. HELENA
Census Block Group	2
Census Block	2015
Census Tract	201601

Owner

958 McCorkle Ave, a duplex, is owned by a company that acquired it in December 2017.

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

Owner of Record	Company Name on File
Mailing Address	1701 MADRONA AVE, SAINT HELENA, CA 94574-1810
Owner Type	Company
Vesting	Company

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 14, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Dec 27, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY
Dec 27, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jul 31, 2015 · Amount on File
Deed Sale	Jul 31, 2015 · Amount on File
Prior Sale	Mar 11, 2002 · Amount on File
Deed Document Number	201519686
Last Transfer Date	Dec 20, 2017
Transfer Doc	0000028544
Record Updated	Oct 29, 2026

May 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	NAPA CA
Recording Date	May 14, 2018
Property Address	958 MCCORKLE AVE, SAINT HELENA, CA 94574-1329
Document Number	0000009561
Instrument Date	Apr 27, 2018
Instrument	9561
Transaction Type	Transfer
Record Updated	May 21, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	958-960 MCCORKLE AVE ST HELENA CA 945741329, ST HELENA, CA 94574-1329

December 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	NAPA CA
Recording Date	Dec 27, 2017
Property Address	958 MCCORKLE AVE, SAINT HELENA, CA 94574-1329
Document Number	0000028539
Instrument Date	Dec 20, 2017
Instrument	28539
Transaction Type	Transfer
Record Updated	Jan 22, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1701 MADRONA AVE ST HELENA CA 945741810, ST HELENA, CA 94574-1810

December 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	NAPA CA
Recording Date	Dec 27, 2017
Property Address	958 MCCORKLE AVE, SAINT HELENA, CA 94574-1329
Document Number	0000028544
Instrument Date	Dec 20, 2017
Instrument	28544
Transaction Type	Transfer
Record Updated	Jan 18, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	1701 MADRONA ST ST ST HELENA CA 94574, ST HELENA, CA 94574

Tax Assessment & Valuation

The 2026 property tax bill for 958 McCorkle Ave was $8,883, 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	$8,883.00 (+1.73%)	$833,149 (+2%) Land $458,836 Building $374,313	$833,149 Land $458,836 Building $374,313
2025	$8,732.00	$816,814 Land $449,840 Building $366,974
2023	$8,456.00 (+3.97%)	$785,098 Land $432,373 Building $352,725
2022	$8,133.00

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

Flood

FEMA maps place 958 McCorkle Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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 AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 18 policies
Nearby Flood Policies	18 in force
Nearby Flood Claims	15 (1986–2019)
Claims Outside the SFHA	1 of 15
Most Recent Claim	Feb 2019 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Winter Storms, Flooding, And Mudslides, Jan 2017 · 2 claims Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 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 958 McCorkle 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	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 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 461 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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