Napa County property record for 520 Chaix Ln, Saint Helena, CA 94574
| Property Type | Vineyard |
|---|---|
| Lot Size | 37.3 acres (1,626,095 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $21,044 (2026) |
| Deeds & Mortgages | Feb 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 030-240-016-000 |
| Primary APN | 030-240-016-000 |
|---|---|
| Alternative APNs |
|
| Lot Area | 1,626,095 sqft |
|---|
| Old Parcel Number | 030-240-016 |
|---|---|
| Street Address | 520 CHAIX LN |
| City | SAINT HELENA |
| State | CA |
| Zip | 94574 |
| Property Category | Agriculture or Farming |
| Property Type | Agriculture / Farming > Vineyard |
| Local Zoning Code | AP |
| Jurisdiction | NAPA CA |
| Township / Civil Division | ST. HELENA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 201500 |
520 Chaix Ln, an agricultural property, is held in a trust since February 2021.
Source: Napa County records, as of October 21, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 1043 CHARTER OAK AVE, SAINT HELENA, CA 94574-1315 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Feb 10, 2021 |
| Transfer Doc | 0000006006 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | NAPA CA |
| Recording Date | Feb 11, 2021 |
| Property Address | 520 CHAIX LN, SAINT HELENA, CA 94574 |
| Document Number | 0000006006 |
| Map Reference | MB 6 PG 21 |
| Instrument Date | Feb 10, 2021 |
| Instrument | 2021-0006006 |
| Transaction Type | Transfer |
| Record Updated | Aug 9, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | PO BOX 26, SAINT HELENA, CA 94574-0026 |
The 2026 property tax bill for 520 Chaix Ln was $21,044, up 12.7% from the year before.
Source: Napa County assessment roll, as of October 21, 2026
| Type | Name |
|---|---|
| State | California |
| County | Napa County |
| Unified School District | St. Helena Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $21,044.00 (+12.66%) | $1,769,619 (+4.67%) Land $468,617 Building $1,301,002 | $1,769,619 (+4.67%) Land $468,617 Building $1,301,002 |
| 2025 | $18,680.00 | $1,690,614 Land $459,429 Building $1,231,185 | $1,690,614 Land $459,429 Building $1,231,185 |
| 2023 | $16,990.00 (+3.21%) | $1,510,608 Land $441,590 Building $1,069,018 | |
| 2022 | $16,461.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 520 Chaix Ln in Zone X, an area of minimal flood risk, though there have been 56 flood claims nearby since 1982.
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 |
| Flood Insurance Cost | Premium on File median of 91 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 91 in force |
| Nearby Flood Claims | 56 (1982–2019) |
| Claims Outside the SFHA | 14 of 56 |
| Most Recent Claim | Feb 2019 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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 risk around 520 Chaix Ln is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 6 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Valley Internet Fixed Wireless | 300 / 150 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile, Xfinity.
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