Napa County property record for 451 Sanitarium Rd, Saint Helena, CA 94574
| Property Type | Vineyard |
|---|---|
| Lot Size | 15.1 acres (657,756 sqft) |
| Owner | Trust Name on File |
| Last Sale | $1,750,000 (Jul 2002) |
| Tax Bill | $29,422 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 021-341-017-000 |
| Primary APN | 021-341-017-000 |
|---|---|
| Alternative APNs |
|
| Lot Area | 657,756 sqft |
|---|
| Old Parcel Number | 021-341-017 |
|---|---|
| Street Address | 451 SANITARIUM RD |
| City | SAINT HELENA |
| State | CA |
| Zip | 94574-9734 |
| Property Category | Agriculture or Farming |
| Property Type | Agriculture / Farming > Vineyard |
| Local Zoning Code | AW |
| Legal Description | SEC 24 TWP 8N RNG 6W |
| Legal Subdivision | CARNE HUMANA RANCHO |
| Jurisdiction | NAPA CA |
| Township / Civil Division | ANGWIN |
| Census Block Group | 6 |
| Census Block | 6010 |
| Census Tract | 201700 |
451 Sanitarium Rd, an agricultural property, is held in a trust since April 2004.
Source: Napa County records, as of October 21, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 451 SANITARIUM RD, SAINT HELENA, CA 94574-9734 |
| 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 Sale | Jul 25, 2002 · Amount on File |
| Deed Sale | Jul 25, 2002 · Amount on File |
| Prior Sale | Nov 12, 1993 |
| Deed Document Number | 200229386 |
| Last Transfer Date | Apr 5, 2004 |
| Transfer Doc | 0000013950 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 451 Sanitarium Rd was $29,422, up 1.8% 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 | $29,422.00 (+1.78%) | $2,781,806 (+2%) Land $1,181,836 Building $1,599,970 | $2,781,806 Land $1,181,836 Building $1,599,970 |
| 2025 | $28,907.00 | $2,727,263 Land $1,158,663 Building $1,568,600 | |
| 2023 | $27,954.00 (+10.25%) | $2,621,364 Land $1,113,672 Building $1,507,692 | |
| 2022 | $25,356.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 451 Sanitarium Rd in Zone X, an area of minimal flood risk, though there have been 23 flood claims nearby since 1986.
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 |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 23 (1986–2005) |
| Claims Outside the SFHA | 4 of 23 |
| Most Recent Claim | Dec 2005 · Severe Storms, Flooding, Mudslides, And Landslides |
| 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 451 Sanitarium Rd is moderate, ranking above 46% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 46% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 74 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Starlink Satellite | 280 / 30 |
May also be available: Valley Internet.
5G (outdoors only) and 4G LTE
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