Napa County property record for 1021 Allison Ave, Saint Helena, CA 94574
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,671 sqft · built 2002 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Trust Name on File |
| Last Sale | $595,000 (Nov 2002) |
| Tax Bill | $9,303 (2026) |
| Flood Zone | Zone X (moderate risk) |
| APN | 009-090-062-000 |
| Primary APN | 009-090-062-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,671 sqft Living Area |
| Gross Area | 2,032 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2002 |
|---|---|
| Effective Year Built | Effective 2002 |
| Construction Type | Wood |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 361 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Old Parcel Number | 009-090-062 |
|---|---|
| Street Address | 1021 ALLISON AVE |
| City | SAINT HELENA |
| State | CA |
| Zip | 94574-1305 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | JOHANNAS NOBLE HOUSE |
| Jurisdiction | NAPA CA |
| Township / Civil Division | ST. HELENA |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 201601 |
1021 Allison Ave is owner-occupied and held in a trust since November 2002.
Source: Napa County records, as of October 21, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 1021 ALLISON AVE, SAINT HELENA, CA 94574-1305 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 21, 2002 · Amount on File |
| Deed Sale | Nov 21, 2002 · Amount on File |
| Prior Sale | Sep 14, 2001 · Amount on File |
| Deed Document Number | 200247913 |
| Prior Transfer Date | Sep 11, 2001 |
| Prior Transfer Doc | 0000031995 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 1021 Allison Ave was $9,303 with a homeowner's exemption, up 1.7% from the year before.
Source: Napa County assessment roll, as of October 21, 2026
| Type | Name |
|---|---|
| State | California |
| County | Napa County |
| Municipality | St. Helena City |
| Unified School District | St. Helena Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $9,303.00 (+1.75%) Homeowner's exemption | $878,972 (+2%) Land $413,633 Building $465,339 | $878,972 Land $413,633 Building $465,339 |
| 2025 | $9,143.00 Homeowner's exemption | $861,738 Land $405,523 Building $456,215 | |
| 2023 | $8,851.00 (+3.99%) Homeowner's exemption | $828,277 Land $389,777 Building $438,500 | |
| 2022 | $8,511.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1021 Allison Ave in Zone X, an area of moderate flood risk, within 100 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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 100 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 |
|
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 1021 Allison 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.
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 |
| 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.
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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