6640 St Helena Rd is a 1,538 square foot house on a 1.03 acre lot with 2 bedrooms and 3 bathrooms. Based on Redfin's Santa Rosa data, we estimate the home's value is $844,708.
Single-familyProperty Type
1962Year Built
1.03 acresLot Size
$549Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$844,708
$183K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.3% lower than the average sale price ($912K) 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
Dec 31, 2025 • Final
Building permit with plan check
Battery
Electrical
New construction
Solar
Dec 31, 2025 • Final
Temporary utilities
Electrical
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
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Style Type: Square Design
Construction Type: Wood/Steel
Building Construction Quality: Average
Pool Information
Has Pool
Property Information
Living Sq. Ft: 1,538
Ground Floor Sq. Ft: 1,538
Building Sq. Ft: 2,818
# of Stories: 1
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 768
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 44,867
Acres: 1.03
Zoning Code: RR5
County Use Description: RURAL RESID-1 RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 3.0
Sq. Ft.: 1,538
Stories: 1.0
Lot Size: 1.03 acres
Style: Single Family Residential
Year Built: 1962
Year Renovated: 1980
County: Sonoma County
APN: 028150020000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Places
Transit
Whited Elementary Charter School
Charter K-6 • Assigned • 4.3mi
6/10
Rincon Valley Middle School
Public 7-8 • Assigned • 3.7mi
5/10
Maria Carrillo High School
Public 9-12 • Assigned • 3.4mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Historical weather
Santa Rosa, CA • 95404
Average low and high temperatures (°F)
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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
$803,000 – $972,000
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