Napa County property record for 910 Allison Ave, Saint Helena, CA 94574
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,312 sqft · built 1902 |
| Lot Size | 0.21 acres (9,148 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $700,000 (Mar 2008) |
| Tax Bill | $10,224 (2026) |
| Deeds & Mortgages | Mar 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 009-503-007-000 |
| Primary APN | 009-503-007-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,312 sqft Living Area |
| Year Built | Built 1902 |
|---|---|
| Effective Year Built | Effective 1936 |
| Construction Type | Wood |
| Lot Area | 9,148 sqft (0.21 acres) |
| Cooling System | None |
|---|---|
| Heating System | HVAC |
| Old Parcel Number | 009-503-007 |
|---|---|
| Street Address | 910 ALLISON AVE |
| City | SAINT HELENA |
| State | CA |
| Zip | 94574-1304 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PCL A MAP NO 1478 14R/S80 |
| Legal Subdivision | PITNEY & BOOKER |
| Jurisdiction | NAPA CA |
| Township / Civil Division | ST. HELENA |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 201601 |
Source: Napa County records, as of October 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 14496 SUNRISE DR NE, BAINBRIDGE ISLAND, WA 98110-4192 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 26, 2008 · Amount on Record |
| Deed Sale | Mar 26, 2008 · Amount on Record |
| Prior Sale | Apr 11, 2006 · Amount on Record |
| Deed Document Number | 20087529 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NAPA CA |
| Property Address | 910 ALLISON AVE, SAINT HELENA, CA 94574-1304 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OF OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000007563 |
|---|---|
| Date | Mar 30, 2017 |
| Instrument | 2017-0007563 |
| Name | CITY NATIONAL BANK |
|---|---|
| Type | Bank |
| Amount | Amount Recorded |
|---|
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 | $10,224.00 (+1.73%) | $958,907 (+2%) Land $736,878 Building $222,029 | $958,907 Land $736,878 Building $222,029 |
| 2025 | $10,050.00 (+3.27%) | $940,106 (+4.04%) Land $722,430 Building $217,676 | |
| 2023 | $9,732.00 (+3.97%) | $903,602 Land $694,378 Building $209,224 | |
| 2022 | $9,360.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 Record 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.
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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