Napa County property record for 451 Monroe St, Napa, CA 94559
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,325 sqft · built 1950 |
| Lot Size | 0.181 acres (7,896 sqft) |
| Owner | 2 Individuals on Record |
| Tax Bill | $8,958 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 004-202-007-000 |
| Primary APN | 004-202-007-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Building Area | 2,325 sqft Living Area |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 2013 |
| Construction Type | Wood |
| Lot Area | 7,896 sqft (0.181 acres) |
| Garage Type | Attached |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | None |
|---|---|
| Heating System | HVAC |
| Old Parcel Number | 00420207 |
|---|---|
| Street Address | 451 MONROE ST |
| City | NAPA |
| State | CA |
| Zip | 94559-3141 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RT 5 |
| Legal Description | LOT 8 VAUGHANS SUB 3R/M67 |
| Legal Subdivision | VAUGHANS |
| Legal Lot Number | 8 |
| Jurisdiction | NAPA CA |
| Township / Civil Division | NAPA |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 200201 |
Source: Napa County assessment roll, as of July 1, 2025
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| Owner of Record | 2 Individuals on Record |
|---|---|
| Mailing Address | 451 MONROE ST, NAPA, CA 94559-3141 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 27, 2005 |
| Deed Sale | Jul 27, 2005 |
| Prior Sale | Jul 25, 2005 |
| Deed Document Number | 2005-0029949 |
| Record Updated | Jun 8, 2026 |
Source: Napa County assessment roll, as of July 1, 2025
| 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 |
|---|---|---|
| 2025 | $8,958.00 (+5.08%) | $724,151 (+4.04%) Land $267,931 Building $456,220 |
| 2023 | $8,525.00 (+1.37%) | $696,033 Land $257,528 Building $438,505 |
| 2022 | $8,410.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 | 1 (2019) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 2019 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 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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