Napa County property record for 1603 Main St, Saint Helena, CA 94574
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 3.5 ba · 2,626 sqft · built 1900 |
| Lot Size | 0.18 acres (7,841 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,568,000 (Feb 2025) |
| Tax Bill | $16,999 (2026) |
| Deeds & Mortgages | May 2018 Transfer Dec 2017 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 009-164-008-000 |
| Primary APN | 009-164-008-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Building Area | 2,626 sqft Living Area |
| Gross Area | 3,006 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 7,841 sqft (0.18 acres) |
| Garage Type | Attached |
| Garage Area | 380 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 009-164-008 |
|---|---|
| Street Address | 1603 MAIN ST, B |
| City | SAINT HELENA |
| State | CA |
| Zip | 94574-1061 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Jurisdiction | NAPA CA |
| Township / Civil Division | ST. HELENA |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 201602 |
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 | 238 IRVING ST, SAN MATEO, CA 94402-2222 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| May 14, 2018 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Dec 27, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Dec 27, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 19, 2025 · Amount on Record |
| Deed Sale | Feb 19, 2025 · Amount on Record |
| Prior Sale | May 29, 2015 · Amount on Record |
| Deed Document Number | 20252466 |
| Prior Transfer Date | Jan 25, 2011 |
| Prior Transfer Doc | 0000002638 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | NAPA CA |
| Recording Date | May 14, 2018 |
| Property Address | 1603 MAIN ST, SAINT HELENA, CA 94574-1047 |
| Document Number | 0000009562 |
| Instrument Date | Apr 27, 2018 |
| Instrument | 9562 |
| Transaction Type | Transfer |
| Record Updated | May 21, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 1603 MAIN ST ST HELENA CA 945741047, ST HELENA, CA 94574-1047 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | NAPA CA |
| Recording Date | Dec 27, 2017 |
| Property Address | 1603 MAIN ST, SAINT HELENA, CA 94574-1047 |
| Document Number | 0000028540 |
| Instrument Date | Dec 20, 2017 |
| Instrument | 28540 |
| Transaction Type | Transfer |
| Record Updated | Jan 17, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1701 MADRONA AVE ST HELENA CA 945741810, ST HELENA, CA 94574-1810 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | NAPA CA |
| Recording Date | Dec 27, 2017 |
| Property Address | 1603 MAIN ST, SAINT HELENA, CA 94574-1047 |
| Document Number | 0000028545 |
| Instrument Date | Dec 20, 2017 |
| Instrument | 28545 |
| Transaction Type | Transfer |
| Record Updated | Jan 17, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 1701 MADRONA AVE ST HELENA CA 945741810, ST HELENA, CA 94574-1810 |
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 | $16,999.00 (-1.22%) | $1,599,360 (-0.97%) Land $596,700 Building $1,002,660 | $1,599,360 (-0.97%) Land $596,700 Building $1,002,660 |
| 2025 | $17,209.00 (+3.26%) | $1,615,051 (+4.04%) Land $600,920 Building $1,014,131 | $1,615,051 Land $600,920 Building $1,014,131 |
| 2023 | $16,665.00 (+3.98%) | $1,552,339 Land $577,587 Building $974,752 | |
| 2022 | $16,027.00 |
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 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.
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 488 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 |
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