Napa County property record for 310 Ashlar Dr, Napa, CA 94558
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,803 sqft · built 1952 |
| Lot Size | 1.01 acres (43,996 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $995,000 (Feb 2011) |
| Tax Bill | $14,640 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-090-003-000 |
| Primary APN | 052-090-003-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 2,803 sqft Living Area |
| Gross Area | 3,617 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1956 |
| Construction Type | Wood |
| Lot Area | 43,996 sqft |
| Garage Type | Attached |
| Garage Area | 814 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | None |
|---|---|
| Heating System | Central |
| Old Parcel Number | 052-090-003 |
|---|---|
| Street Address | 310 ASHLAR DR |
| City | NAPA |
| State | CA |
| Zip | 94558-3714 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RS10 |
| Legal Description | PGE ESMNT 1569/698 RD/UTLTY ESMT 1622/333 SWR 1737/106 |
| Legal Subdivision | IMREIVILLE SUBD |
| Jurisdiction | NAPA CA |
| Township / Civil Division | NAPA |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 200400 |
310 Ashlar Dr is owned and occupied by two individuals who bought it in February 2011.
Source: Napa County records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 310 ASHLAR DR, NAPA, CA 94558-3714 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Feb 25, 2011 · Amount on File |
| Deed Sale | Feb 25, 2011 · Amount on File |
| Deed Document Number | 20114812 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 310 Ashlar Dr was $14,640 with a homeowner's exemption, up 2.1% 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 | $14,640.00 (+2.06%) Homeowner's exemption | $1,300,254 (+2%) Land $392,032 Building $908,222 | $1,300,254 Land $392,032 Building $908,222 |
| 2025 | $14,344.00 Homeowner's exemption | $1,274,760 Land $384,346 Building $890,414 | |
| 2023 | $13,584.00 (+1.51%) Homeowner's exemption | $1,225,261 Land $369,422 Building $855,839 | |
| 2022 | $13,382.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 310 Ashlar Dr in Zone X, an area of minimal flood risk, though there have been 54 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 14 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 14 in force |
| Nearby Flood Claims | 54 (1982–2019) |
| Claims Outside the SFHA | 5 of 54 |
| 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.
Wildfire risk around 310 Ashlar Dr is moderate, ranking above 45% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 45% of the US · lower than 73% of California |
|---|---|
| Wildfire Likelihood | 0.08% 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 73 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: T-Mobile, Valley Internet, Verizon.
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