Napa County property record for 301 Underhill Dr, Napa, CA 94558
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 1,901 sqft · built 1948 |
| Lot Size | 0.23 acres (10,019 sqft) |
| Owner | Trust Name on File |
| Last Sale | $135,000 (Mar 2011) |
| Tax Bill | $4,806 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 004-372-016-000 |
| Primary APN | 004-372-016-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,901 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 10,019 sqft (0.23 acres) |
| Garage Type | Carport |
| Carport | Carport |
| Heating System | HVAC |
|---|
| Old Parcel Number | 004-372-016 |
|---|---|
| Street Address | 301 UNDERHILL DR |
| City | NAPA |
| State | CA |
| Zip | 94558-7400 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | RM |
| Legal Subdivision | COVENTRY MANOR |
| Legal Lot Number | 1 |
| Jurisdiction | NAPA CA |
| Township / Civil Division | NAPA |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 200802 |
301 Underhill Dr, a duplex, is held in a trust since May 2013.
Source: Napa County records, as of October 21, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 1370 TRANCAS ST, NAPA, CA 94558-2912 |
| 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 | Mar 18, 2011 · Amount on File |
| Deed Sale | Mar 18, 2011 · Amount on File |
| Deed Document Number | 20116541 |
| Last Transfer Date | May 6, 2013 |
| Transfer Doc | 0000013737 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 301 Underhill Dr was $4,806, up 2.3% from the year before.
Source: Napa County assessment roll, as of October 21, 2026
| Type | Name |
|---|---|
| State | California |
| County | Napa County |
| Municipality | Napa City |
| Unified School District | Napa Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $4,806.00 (+2.28%) | $313,619 (+2%) Land $163,344 Building $150,275 | $313,619 Land $163,344 Building $150,275 |
| 2025 | $4,699.00 | $307,471 Land $160,142 Building $147,329 | |
| 2023 | $4,633.00 (-0.19%) | $295,533 Land $153,924 Building $141,609 | |
| 2022 | $4,642.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 301 Underhill Dr in Zone X, an area of minimal flood risk.
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 | 1 in force |
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 301 Underhill Dr is low, with less than 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 98% of the US · lower than 98.4% of California |
|---|---|
| Wildfire Likelihood | Under 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 NAPA serves 84,804 people · EPA ID CA2810003 |
|---|---|
| Water Source | Surface water |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 578 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: T-Mobile, Verizon.
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