18850 Robinson Rd is a 2,140 square foot house on a 6,174 square foot lot with 3 bedrooms and 2.5 bathrooms. - it last sold on October 29, 1996 for $227,000. Based on Redfin's Sonoma data, we estimate the home's value is $1,077,720.
Single-familyProperty Type
1986Year Built
6,174 sq ftLot Size
$504Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,077,720
$851K since sold in October 1996$13K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 30.9% higher than the average sale price ($823K) of 6 comparable homes.
*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 history record
Construct a new single-family home.
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
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 6
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: 502 SUNSHINE VLY SUB
Living Sq. Ft: 2,140
Ground Floor Sq. Ft: 1,272
Building Sq. Ft: 2,140
# of Stories: 2
Legal Description: TRACT 502 LOT 9
Parking & Garage Information
Garage/Parking Sq. Ft: 468
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,174
Legal Lot Number: 9
Acres: 0.1417
Zoning Code: R1B8FRZN
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.5
Sq. Ft.: 2,140
Stories: 2.0
Lot Size: 6,174 square feet
Style: Single Family Residential
Year Built: 1986
Year Renovated: 1986
County: Sonoma County
APN: 127440028000
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
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46
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78
51
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85
55
89
55
86
56
80
51
65
46
59
43
Jan
Feb
Mar
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May
Jun
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Aug
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Oct
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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
$1.02M – $1.24M
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