1663 Howell Mountain Rd is a 1,188 square foot vacant land on a 10.76 acre lot with 3 bedrooms and 2 bathrooms. - it last sold on September 15, 2020 for $725,000. Based on Redfin's Angwin data, we estimate the home's value is $960,460.
Vacant landProperty Type
2005Year Built
10.76 acresLot Size
$89,262Price/Acres
Source:Public Records
Redfin Estimate
$960,460
$235K since sold in September 2020$15K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.6% lower than the average sale price ($1.06M) of 6 comparable homes.
Claim this home to receive a free report every month with insights on the changing estimate.
Market trends in 94508, CA
Last updated July 2026
Buyer's Market
Seller's Market
Buyer's market
Sale-to-List Price
94.9%
+0.4% MoM
Median sale price
$895K
$80K MoM
Avg. days on market
74d
53 days MoM
Recently sold homes
3
1 MoM
Provided by Redfin
Sale history for 1663 Howell Mountain Rd
Date
Event
Price
Public Records
Sep 15, 2020
Sold
$725,000
$610/sq ft
BAREIS #22008772
May 13, 2020
Delisted
—
Apr 24, 2020
Listed
*
Year
Property tax
Land + Additions
Assessment*
2025
$8,045 (+2.0%)
$503,330 + $281,432
$784,762
2024
$7,887 (+1.9%)
$503,330 + $281,432
$784,762
2023
$7,737 (+1.6%)
$493,461 + $275,914
$769,375
2022
$7,615 (+2.0%)
$483,786 + $270,504
$754,290
2021
$7,468 (+89.5%)
$474,300 + $265,200
$739,500
2020
$3,941 (+1.8%)
$465,000 + $260,000
$725,000
2019
$3,873 (+1.3%)
$289,164 + $88,516
$377,680
2018
$3,824 (+1.8%)
$283,495 + $86,781
$370,276
2017
$3,756 (+1.9%)
$272,488 + $83,412
$355,900
2016
$3,685 (+1.3%)
$272,488 + $83,412
$355,900
2015
$3,639 (+1.8%)
$267,146 + $81,777
$348,923
2014
$3,575 (−42.5%)
$257,980 + $78,972
$336,952
2012
$6,216 (+5.5%)
$256,815 + $78,616
$335,431
2011
$5,894 (−22.3%)
$251,780 + $77,075
$328,855
2010
$7,583 (−2.8%)
$246,844 + $75,564
$322,408
2009
$7,805 (−0.3%)
$240,391 + $225,690
$466,081
2008
$7,828
$240,962 + $226,226
$467,188
Tax history for 1663 Howell Mountain Rd
Year
Property tax
Land + Additions
Assessment*
2025
$8,045 (+2.0%)
$503,330 + $281,432
$784,762
2024
$7,887 (+1.9%)
$503,330 + $281,432
$784,762
2023
$7,737 (+1.6%)
$493,461 + $275,914
$769,375
2022
$7,615 (+2.0%)
$483,786 + $270,504
$754,290
2021
$7,468 (+89.5%)
$474,300 + $265,200
$739,500
2020
$3,941 (+1.8%)
$465,000 + $260,000
$725,000
2019
$3,873 (+1.3%)
$289,164 + $88,516
$377,680
2018
$3,824 (+1.8%)
$283,495 + $86,781
$370,276
2017
$3,756 (+1.9%)
$272,488 + $83,412
$355,900
2016
$3,685 (+1.3%)
$272,488 + $83,412
$355,900
2015
$3,639 (+1.8%)
$267,146 + $81,777
$348,923
2014
$3,575 (−42.5%)
$257,980 + $78,972
$336,952
2012
$6,216 (+5.5%)
$256,815 + $78,616
$335,431
2011
$5,894 (−22.3%)
$251,780 + $77,075
$328,855
2010
$7,583 (−2.8%)
$246,844 + $75,564
$322,408
2009
$7,805 (−0.3%)
$240,391 + $225,690
$466,081
2008
$7,828
$240,962 + $226,226
$467,188
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
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
Feb 18, 2004 • Final
Building/mobile home/mfg home permanent foundation/new
New construction
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 2
Fireplace Information
# of Fireplaces: 3
Has Fireplace
Room Information
# of Rooms: 5
Exterior
Exterior Information
Construction Type: Manufactured/Modular
Building Construction Quality: Average
Property Information
Living Sq. Ft: 1,188
Building Sq. Ft: 1,188
# of Units: 1
# of Stories: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 468,706
Acres: 10.76
Zoning Code: AW
County Use Description: RURAL RESID 5+ ACRES
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,188
Stories: 1.0
Lot Size: 10.76 acres
Style: Vacant Land
Year Built: 2005
Year Renovated: 2005
County: Napa County
APN: 18131015000
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
Howell Mountain Elementary School
Public K-8 • Assigned • 1.8mi
4/10
Saint Helena High School
Public 9-12 • Assigned • 7.8mi
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
12% 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
57
41
65
46
64
45
73
49
79
52
80
53
85
57
81
55
72
51
58
44
55
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.7 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.7 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$913,000 – $1.11M
Sell confidently with a local market expert in Angwin. 3 minutes to get started.