18857 Robinson Rd is a 1,798 square foot house on a 7,000 square foot lot with 3 bedrooms and 2.5 bathrooms. Based on Redfin's Sonoma data, we estimate the home's value is $985,439.
Single-familyProperty Type
1989Year Built
7,000 sq ftLot Size
$548Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$985,439
$17K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.2% higher than the average sale price ($946K) 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
$6,654 (+2.8%)
$133,977 + $287,109
$421,086
2024
$6,475 (+2.0%)
$131,350 + $281,480
$412,830
2023
$6,345 (+1.8%)
$128,775 + $275,961
$404,736
2022
$6,233 (+2.4%)
$126,250 + $270,550
$396,800
2021
$6,087 (−5.2%)
$123,775 + $265,246
$389,021
2020
$6,419 (+12.1%)
$121,349 + $260,046
$381,395
2019
$5,728 (+9.1%)
$120,105 + $257,380
$377,485
2018
$5,251 (−7.5%)
$117,750 + $252,334
$370,084
2017
$5,675 (+17.1%)
$113,179 + $242,537
$355,716
2015
$4,846 (−0.5%)
$110,960 + $237,782
$348,742
2014
$4,872 (+2.3%)
$107,154 + $229,624
$336,778
2013
$4,762 (−0.3%)
$107,154 + $229,624
$336,778
2012
$4,778 (+5.4%)
$106,670 + $228,587
$335,257
2011
$4,532 (+1.5%)
$104,579 + $224,105
$328,684
2010
$4,467 (+1.6%)
$102,529 + $219,711
$322,240
2009
$4,396 (+3.1%)
$101,763 + $218,069
$319,832
2007
$4,265
$100,005 + $214,302
$314,307
Tax history for 18857 Robinson Rd
Year
Property tax
Land + Additions
Assessment*
2025
$6,654 (+2.8%)
$133,977 + $287,109
$421,086
2024
$6,475 (+2.0%)
$131,350 + $281,480
$412,830
2023
$6,345 (+1.8%)
$128,775 + $275,961
$404,736
2022
$6,233 (+2.4%)
$126,250 + $270,550
$396,800
2021
$6,087 (−5.2%)
$123,775 + $265,246
$389,021
2020
$6,419 (+12.1%)
$121,349 + $260,046
$381,395
2019
$5,728 (+9.1%)
$120,105 + $257,380
$377,485
2018
$5,251 (−7.5%)
$117,750 + $252,334
$370,084
2017
$5,675 (+17.1%)
$113,179 + $242,537
$355,716
2015
$4,846 (−0.5%)
$110,960 + $237,782
$348,742
2014
$4,872 (+2.3%)
$107,154 + $229,624
$336,778
2013
$4,762 (−0.3%)
$107,154 + $229,624
$336,778
2012
$4,778 (+5.4%)
$106,670 + $228,587
$335,257
2011
$4,532 (+1.5%)
$104,579 + $224,105
$328,684
2010
$4,467 (+1.6%)
$102,529 + $219,711
$322,240
2009
$4,396 (+3.1%)
$101,763 + $218,069
$319,832
2007
$4,265
$100,005 + $214,302
$314,307
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jun 11, 2016 • Final
Building permit no plan check
Tear off the existing roof and install new composition shingles on a single-family home.
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: 2
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 5
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Living Sq. Ft: 1,798
Ground Floor Sq. Ft: 966
Building Sq. Ft: 1,798
# of Stories: 2
Legal Description: 89 FM PT OF 127-091-08 OR 88-65271 PM 87-587
Parking & Garage Information
Garage/Parking Sq. Ft: 420
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,000
Legal Lot Number: 4
Acres: 0.1607
Zoning Code: R1B8FRZN
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.5
Sq. Ft.: 1,798
Stories: 2.0
Lot Size: 7,000 square feet
Style: Single Family Residential
Year Built: 1989
Year Renovated: 1989
County: Sonoma County
APN: 127091044000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Sassarini Elementary School
Public K-5 • Assigned • 1.0mi
3/10
Altimira Middle School
Public 6-8 • Assigned • 1.4mi
2/10
Sonoma Valley High School
Public 9-12 • Assigned • 1.8mi
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 95° 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
$937,000 – $1.13M
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