Napa County property record for 3644 Spring Mountain Rd, Saint Helena, CA 94574
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 5.5 ba · 6,136 sqft · built 2015 |
| Lot Size | 59.6 acres (2,599,661 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $6,750,000 (Jan 2025) |
| Tax Bill | $72,419 (2026) |
| Deeds & Mortgages | Mar 2024 Sale Mar 2024 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 022-150-010-000 |
| Primary APN | 022-150-010-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 5.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Building Area | 6,136 sqft Living Area |
| Gross Area | 6,863 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2015 |
|---|---|
| Effective Year Built | Effective 2015 |
| Exterior Material | Glass |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 2,599,661 sqft |
| Garage Type | Attached |
| Garage Area | 727 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 022-150-010 |
|---|---|
| Street Address | 3644 SPRING MOUNTAIN RD |
| City | SAINT HELENA |
| State | CA |
| Zip | 94574-9677 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AW |
| Legal Description | SEC 21 TWP 8N RNG 6W |
| Legal Subdivision | D. O. HUNT TRACT |
| Jurisdiction | NAPA CA |
| Township / Civil Division | ST. HELENA |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 201500 |
3644 Spring Mountain Rd is held in a trust since January 2025.
Source: Napa County records, as of October 21, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 303 VISTA DE LA PLAYA, LA JOLLA, CA 92037-5336 |
| Owner Type | Company |
| Vesting | Trust, Family Living Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Mar 15, 2024 | Grant Deed, Transfer TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Mar 15, 2024 | Grant Deed, Transfer TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 31, 2025 · Amount on File |
| Deed Sale | Jan 31, 2025 · Amount on File |
| Prior Sale | Sep 12, 2008 |
| Deed Document Number | 20251453 |
| Prior Transfer Date | Mar 29, 2003 |
| Prior Transfer Doc | 0000049973 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | NAPA CA |
| Recording Date | Mar 15, 2024 |
| Property Address | 3644 SPRING MOUNTAIN RD, SAINT HELENA, CA 94574-9677 |
| Document Number | 0000003807 |
| Instrument Date | Mar 14, 2024 |
| Instrument | 2024-0003807 |
| Transaction Type | Transfer |
| Record Updated | Apr 8, 2024 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 895 HARVARD AVE, MENLO PARK, CA 94025-5324 |
| Investor | Possibly a Property Investor |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | NAPA CA |
| Recording Date | Mar 15, 2024 |
| Property Address | 3644 SPRING MOUNTAIN RD, SAINT HELENA, CA 94574-9677 |
| Document Number | 0000003806 |
| Instrument Date | Mar 4, 2024 |
| Instrument | 2024-0003806 |
| Transaction Type | Transfer |
| Record Updated | Apr 8, 2024 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 895 HARVARD AVE, MENLO PARK, CA 94025-5324 |
| Investor | Possibly a Property Investor |
The 2026 property tax bill for 3644 Spring Mountain Rd was $72,419, down 8.2% from the year before.
Source: Napa County assessment roll, as of October 21, 2026
| Type | Name |
|---|---|
| State | California |
| County | Napa County |
| Unified School District | St. Helena Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $72,419.00 (-8.23%) | $6,885,000 (-8.05%) Land $1,785,000 Building $5,100,000 | $6,885,000 Land $1,785,000 Building $5,100,000 |
| 2025 | $78,916.00 | $7,488,002 Land $2,305,094 Building $5,182,908 | |
| 2023 | $76,343.00 (+2.93%) | $7,197,236 Land $2,215,586 Building $4,981,650 | |
| 2022 | $74,167.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3644 Spring Mountain Rd in Zone X, an area of minimal flood risk, though there have been 18 flood claims nearby since 1982.
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 |
| Flood Insurance Cost | Premium on File median of 41 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 41 in force |
| Nearby Flood Claims | 18 (1982–2012) |
| Claims Outside the SFHA | 4 of 18 |
| Most Recent Claim | Dec 2012 · rainfall accumulation |
| 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 3644 Spring Mountain Rd is moderate, ranking above 52% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 52% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 1 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| Valley Internet Fixed Wireless | 150 / 75 |
5G (outdoors only) and 4G LTE
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