6666 St Helena Rd is a 4,382 square foot house on a 10.97 acre lot with 5 bedrooms and 5 bathrooms. - it last sold on October 31, 1997 for $225,000. Based on Redfin's Santa Rosa data, we estimate the home's value is $1,873,016.
Single-familyProperty Type
1974Year Built
10.97 acresLot Size
$427Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,873,016
$1.6M since sold in October 1997$11K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 78% higher than the average sale price ($1.05M) 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
Mar 22, 2022 • Final
Building permit with plan check
Install a new energy storage system at a residential property.
Battery
Electrical
Oct 31, 2016 • Final
Building permit with plan check
Electrical
Solar
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: 5
Heating & Cooling
Heating Type: Baseboard Electric
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 11
Exterior
Exterior Information
Physical Condition: Average
Construction Type: Wood/Steel
Building Construction Quality: Good
View Information
View: Good
Property Information
Living Sq. Ft: 4,382
Building Sq. Ft: 9,822
# of Stories: 2
Legal Description: 74 FORM PT OF 26 C/W PT OF 24 & PT TO RD FILE
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 976
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 477,853
Legal Lot Number: 1
Acres: 10.97
Zoning Code: RR5
County Use Description: RURAL RESID-1 RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 5.0
Sq. Ft.: 4,382
Stories: 2.0
Lot Size: 10.97 acres
Style: Single Family Residential
Year Built: 1974
Year Renovated: 2014
County: Sonoma County
APN: 028150041000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Places
Transit
Whited Elementary Charter School
Charter K-6 • Assigned • 4.5mi
6/10
Rincon Valley Middle School
Public 7-8 • Assigned • 3.8mi
5/10
Maria Carrillo High School
Public 9-12 • Assigned • 3.5mi
9/10
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
3% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 93° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
26 unhealthy days expected this year, 28 days in 30 years
Provided by First Street
Historical weather
Santa Rosa, CA • 95404
Average low and high temperatures (°F)
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47
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51
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79
54
86
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83
55
79
51
65
46
60
44
Jan
Feb
Mar
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May
Jun
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Aug
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Dec
Sun exposure
In this area, properties receive around 11.4 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.4 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.78M – $2.15M
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