17631 Middlefield Rd is a 1,363 square foot house on a 6,000 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's Sonoma data, we estimate the home's value is $728,836.
Single-familyProperty Type
1922Year Built
6,000 sq ftLot Size
$535Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$728,836
$42K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.4% lower than the average sale price ($754K) 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
$3,182 (+1.5%)
$23,555 + $47,108
$70,663
2024
$3,136 (−4.3%)
$23,094 + $46,185
$69,279
2023
$3,277 (+3.6%)
$22,642 + $45,280
$67,922
2022
$3,165 (+9.6%)
$22,199 + $44,393
$66,592
2021
$2,889 (+34.2%)
$21,764 + $43,523
$65,287
2020
$2,154 (−22.8%)
$21,338 + $42,670
$64,008
2019
$2,788 (+5.4%)
$21,120 + $42,233
$63,353
2018
$2,644 (+36.8%)
$20,706 + $41,405
$62,111
2017
$1,933 (+3.9%)
$19,902 + $39,799
$59,701
2015
$1,860 (+11.6%)
$19,512 + $39,019
$58,531
2014
$1,667 (+4.3%)
$18,843 + $37,681
$56,524
2013
$1,598 (−4.9%)
$18,843 + $37,681
$56,524
2012
$1,681 (+3.4%)
$18,758 + $37,511
$56,269
2011
$1,625 (+2.7%)
$18,391 + $36,776
$55,167
2010
$1,583 (+2.9%)
$18,031 + $36,055
$54,086
2009
$1,538 (+3.6%)
$17,897 + $35,786
$53,683
2007
$1,485
$17,589 + $35,169
$52,758
Tax history for 17631 Middlefield Rd
Year
Property tax
Land + Additions
Assessment*
2025
$3,182 (+1.5%)
$23,555 + $47,108
$70,663
2024
$3,136 (−4.3%)
$23,094 + $46,185
$69,279
2023
$3,277 (+3.6%)
$22,642 + $45,280
$67,922
2022
$3,165 (+9.6%)
$22,199 + $44,393
$66,592
2021
$2,889 (+34.2%)
$21,764 + $43,523
$65,287
2020
$2,154 (−22.8%)
$21,338 + $42,670
$64,008
2019
$2,788 (+5.4%)
$21,120 + $42,233
$63,353
2018
$2,644 (+36.8%)
$20,706 + $41,405
$62,111
2017
$1,933 (+3.9%)
$19,902 + $39,799
$59,701
2015
$1,860 (+11.6%)
$19,512 + $39,019
$58,531
2014
$1,667 (+4.3%)
$18,843 + $37,681
$56,524
2013
$1,598 (−4.9%)
$18,843 + $37,681
$56,524
2012
$1,681 (+3.4%)
$18,758 + $37,511
$56,269
2011
$1,625 (+2.7%)
$18,391 + $36,776
$55,167
2010
$1,583 (+2.9%)
$18,031 + $36,055
$54,086
2009
$1,538 (+3.6%)
$17,897 + $35,786
$53,683
2007
$1,485
$17,589 + $35,169
$52,758
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 22, 2018 • Final
Building permit no plan check
Roofing
Dec 15, 2016 • Final
Demolition
Demolition
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: 3
Room Information
# of Rooms: 7
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: SONOMA HLNDS 01
Living Sq. Ft: 1,363
Building Sq. Ft: 1,363
# of Stories: 1
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 180
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,000
Legal Lot Number: 5
Legal Block Number: D
Acres: 0.1377
Zoning Code: R15UA
County Use Description: SFD W/GRANNY UNIT
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 1,363
Stories: 1.0
Lot Size: 6,000 square feet
Style: Single Family Residential
Year Built: 1922
Year Renovated: 1950
County: Sonoma County
APN: 056333025000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Flowery Elementary School
Public K-5 • Assigned • 0.3mi
5/10
Adele Harrison Middle School
Public 6-8 • Assigned • 3.0mi
4/10
Sonoma Valley High School
Public 9-12 • Assigned • 2.8mi
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
4/10 Heat Factor
7 days above 97° expected this year, 16 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
82
54
89
55
86
56
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
$693,000 – $839,000
Reach more buyers when you sell with Redfin. Save up to $7,288 in fees.3 minutes to get started.