Napa County property record for 1817 Jefferson St, Napa, CA 94559
| Property Type | Commercial Office |
|---|---|
| Details | 2,888 sqft · built 1937 |
| Lot Size | 0.15 acres (6,534 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $95,000 (Oct 1999) |
| Tax Bill | $5,432 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 002-097-012-000 |
| Primary APN | 002-097-012-000 |
|---|---|
| Alternative APNs |
|
| Stories | 2 Stories |
|---|---|
| Building Area | 2,888 sqft Gross Area |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1975 |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 6,534 sqft (0.15 acres) |
| Garage Type | Attached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 002-097-012 |
|---|---|
| Street Address | 1817 JEFFERSON ST |
| City | NAPA |
| State | CA |
| Zip | 94559-1617 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | OC |
| Legal Description | N 1/2 LOT 4 BLK 5 SPENCERS ADDN 1R/M68 |
| Legal Subdivision | SPENCERS ADDN |
| Legal Block | 5 |
| Legal Lot Number | 4 |
| Jurisdiction | NAPA CA |
| Township / Civil Division | NAPA |
| Census Block Group | 3 |
| Census Block | 3026 |
| Census Tract | 200501 |
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 Company Names on Record |
|---|---|
| Mailing Address | 1817 JEFFERSON ST, NAPA, CA 94559-1617 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 5, 1999 · Amount on Record |
| Deed Sale | Oct 5, 1999 · Amount on Record |
| Prior Sale | Oct 17, 1995 · Amount on Record |
| Deed Document Number | 199931238 |
| Last Transfer Date | Mar 14, 2025 |
| Transfer Doc | 0000003843 |
| Record Updated | Oct 29, 2026 |
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 | $5,432.00 (+5.23%) | $338,976 (+2%) Land $105,524 Building $233,452 | $338,976 (+2%) Land $105,524 Building $233,452 |
| 2025 | $5,162.00 (+18.1%) | $332,330 (+4.04%) Land $103,455 Building $228,875 | $332,330 Land $103,455 Building $228,875 |
| 2023 | $4,371.00 (+1.25%) | $319,428 Land $99,439 Building $219,989 | |
| 2022 | $4,317.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 6 (1995–2005) |
| Claims Outside the SFHA | 4 of 6 |
| Most Recent Claim | Dec 2005 · Severe Storms, Flooding, Mudslides, And Landslides |
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 | Not rated no burnable land within 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 707 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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