As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$4,656 (+2.1%)
$169,864 + $284,051
$453,915
2024
$4,561 (+2.0%)
$169,864 + $284,051
$453,915
2023
$4,474 (+1.7%)
$166,534 + $278,482
$445,016
2022
$4,399 (+3.0%)
$163,269 + $273,022
$436,291
2021
$4,273 (+0.3%)
$160,068 + $267,669
$427,737
2020
$4,260 (+1.8%)
$156,930 + $262,421
$419,351
2019
$4,184 (+1.3%)
$155,321 + $259,731
$415,052
2018
$4,131 (+1.9%)
$152,276 + $254,639
$406,915
2017
$4,055 (+1.9%)
$146,364 + $244,752
$391,116
2016
$3,978 (+1.3%)
$146,364 + $244,752
$391,116
2015
$3,928 (+1.8%)
$143,495 + $239,953
$383,448
2014
$3,857 (+2.9%)
$138,572 + $231,720
$370,292
2012
$3,749 (+2.1%)
$137,946 + $230,673
$368,619
2011
$3,671 (+1.6%)
$135,242 + $226,150
$361,392
2010
$3,614 (−1.0%)
$132,591 + $221,716
$354,307
2009
$3,651 (+2.4%)
$131,601 + $220,059
$351,660
2008
$3,564
$131,913 + $220,581
$352,494
Tax history for 1425 Howell Mountain Rd
Year
Property tax
Land + Additions
Assessment*
2025
$4,656 (+2.1%)
$169,864 + $284,051
$453,915
2024
$4,561 (+2.0%)
$169,864 + $284,051
$453,915
2023
$4,474 (+1.7%)
$166,534 + $278,482
$445,016
2022
$4,399 (+3.0%)
$163,269 + $273,022
$436,291
2021
$4,273 (+0.3%)
$160,068 + $267,669
$427,737
2020
$4,260 (+1.8%)
$156,930 + $262,421
$419,351
2019
$4,184 (+1.3%)
$155,321 + $259,731
$415,052
2018
$4,131 (+1.9%)
$152,276 + $254,639
$406,915
2017
$4,055 (+1.9%)
$146,364 + $244,752
$391,116
2016
$3,978 (+1.3%)
$146,364 + $244,752
$391,116
2015
$3,928 (+1.8%)
$143,495 + $239,953
$383,448
2014
$3,857 (+2.9%)
$138,572 + $231,720
$370,292
2012
$3,749 (+2.1%)
$137,946 + $230,673
$368,619
2011
$3,671 (+1.6%)
$135,242 + $226,150
$361,392
2010
$3,614 (−1.0%)
$132,591 + $221,716
$354,307
2009
$3,651 (+2.4%)
$131,601 + $220,059
$351,660
2008
$3,564
$131,913 + $220,581
$352,494
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
AW
Agricultural Watershed District
The AW district classification is intended to be applied in those areas of the county where the predominant use is agriculturally oriented, where watershed areas, reservoirs and floodplain tributaries are located, where development would adversely impact on all such uses, and where the protection of agriculture, watersheds and floodplain tributaries from fire, pollution and erosion is essential to the general health, safety and welfare.
Permitted uses
Include but are not limited to:
Agriculture
Housing-Single unit
Housing-Senior
Housing-Other
Office
Recreation
Communications tower
Property details
Interior
Bathroom Information
# of Full Baths: 2
Room Information
# of Rooms: 8
Exterior
View Information
View: Good
Property Information
Living Sq. Ft: 2,472
Building Sq. Ft: 2,472
# of Stories: 2
Parking & Garage Information
Parking Type: Carport
Garage/Parking Sq. Ft: 330
Garage / Carport Type: Carport
Lot Information
# of Buildings: 2
Land Sq. Ft: 191,664
Acres: 4.4
Zoning Code: AW
County Use Description: MULTI RES 2-4 UNITS
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 2,472
Stories: 2.0
Lot Size: 4.4 acres
Style: Other
Year Built: 1910
Year Renovated: 1976
County: Napa County
APN: 18131004000
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
Howell Mountain Elementary School
Public K-8 • Assigned • 1.4mi
4/10
Saint Helena High School
Public 9-12 • Assigned • 7.4mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
6/10 Fire Factor
9% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 95° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
28 unhealthy days expected this year, 28 days in 30 years
Provided by First Street
Historical weather
Angwin, CA • 94508
Average low and high temperatures (°F)
57
41
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41
65
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80
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86
58
81
55
72
51
58
44
55
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
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