445 Napa Rd is a 2,022 square foot house on a 3.5 acre lot with 3 bedrooms and 1.5 bathrooms. Based on Redfin's Sonoma data, we estimate the home's value is $1,397,313.
Single-familyProperty Type
1930Year Built
3.5 acresLot Size
$691Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,397,313
$23K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.9% lower than the average sale price ($1.57M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$1,782 (+1.9%)
$52,253 + $63,952
$116,205
2024
$1,749 (+2.0%)
$51,229 + $62,699
$113,928
2023
$1,715 (+5.5%)
$50,225 + $61,470
$111,695
2022
$1,625 (+2.6%)
$49,241 + $60,265
$109,506
2021
$1,584
$48,276 + $59,084
$107,360
2020
$1,584 (+1.7%)
$47,330 + $57,926
$105,256
2019
$1,557 (+11.8%)
$46,845 + $57,333
$104,178
2018
$1,392 (+21.6%)
$45,927 + $56,209
$102,136
2017
$1,145 (+13.4%)
$44,145 + $34,419
$78,564
2015
$1,010 (+1.4%)
$43,280 + $33,745
$77,025
2014
$996 (+0.8%)
$41,795 + $32,588
$74,383
2013
$988 (+1.6%)
$41,795 + $32,588
$74,383
2012
$973 (+1.4%)
$41,607 + $32,441
$74,048
2011
$959 (+0.6%)
$40,792 + $31,805
$72,597
2010
$954 (+0.6%)
$39,993 + $31,182
$71,175
2009
$948 (+2.2%)
$39,695 + $30,949
$70,644
2007
$928
$39,010 + $30,415
$69,425
Tax history for 445 Napa Rd
Year
Property tax
Land + Additions
Assessment*
2025
$1,782 (+1.9%)
$52,253 + $63,952
$116,205
2024
$1,749 (+2.0%)
$51,229 + $62,699
$113,928
2023
$1,715 (+5.5%)
$50,225 + $61,470
$111,695
2022
$1,625 (+2.6%)
$49,241 + $60,265
$109,506
2021
$1,584
$48,276 + $59,084
$107,360
2020
$1,584 (+1.7%)
$47,330 + $57,926
$105,256
2019
$1,557 (+11.8%)
$46,845 + $57,333
$104,178
2018
$1,392 (+21.6%)
$45,927 + $56,209
$102,136
2017
$1,145 (+13.4%)
$44,145 + $34,419
$78,564
2015
$1,010 (+1.4%)
$43,280 + $33,745
$77,025
2014
$996 (+0.8%)
$41,795 + $32,588
$74,383
2013
$988 (+1.6%)
$41,795 + $32,588
$74,383
2012
$973 (+1.4%)
$41,607 + $32,441
$74,048
2011
$959 (+0.6%)
$40,792 + $31,805
$72,597
2010
$954 (+0.6%)
$39,993 + $31,182
$71,175
2009
$948 (+2.2%)
$39,695 + $30,949
$70,644
2007
$928
$39,010 + $30,415
$69,425
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jun 15, 2017 • Final
Building permit with plan check
Construct a new attached garage.
New construction
Jun 11, 2016 • Final
Building permit no plan check
Remove the existing roofing material and install a new built-up roofing system.
Roofing
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: 1
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Living Sq. Ft: 2,022
Ground Floor Sq. Ft: 2,022
Building Sq. Ft: 2,550
# of Stories: 1
Legal Description: 84 FM 128-332-11 PT TO RD 83057950
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 1,032
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 152,460
Acres: 3.5
Zoning Code: RR3
County Use Description: RURAL RESID-1 RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.5
Sq. Ft.: 2,022
Stories: 1.0
Lot Size: 3.5 acres
Style: Single Family Residential
Year Built: 1930
Year Renovated: 1941
County: Sonoma County
APN: 128332037000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Prestwood Elementary School
Public K-5 • Assigned • 0.6mi
5/10
Adele Harrison Middle School
Public 6-8 • Assigned • 0.5mi
4/10
Sonoma Valley High School
Public 9-12 • Assigned • 0.6mi
7/10
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
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 92° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
19 unhealthy days expected this year, 19 days in 30 years
Provided by First Street
Historical weather
Sonoma, CA • 95476
Average low and high temperatures (°F)
62
40
64
42
72
46
70
47
78
51
83
54
85
55
89
55
84
58
80
51
65
46
59
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.3 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.3 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.33M – $1.61M
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