4450 Guerneville Rd is a 2,241 square foot house on a 4.41 acre lot with 3 bedrooms and 3 bathrooms. - it last sold on September 18, 2003 for $350,000. Based on Redfin's Santa Rosa data, we estimate the home's value is $1,261,347.
Single-familyProperty Type
1930Year Built
4.41 acresLot Size
$563Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,261,347
$911K since sold in September 2003$26K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.1% lower than the average sale price ($1.32M) 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
May 19, 2026 • Final
Building permit with plan check
Addition
ADU
Feb 27, 2026 • Final
Building revision
Remodel
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
Basement Information
Basement Sq. Ft: 1,212
Bathroom Information
# of Full Baths: 3
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Building Style Type: U-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: EL MOLINO RANCHO
Living Sq. Ft: 2,241
Building Sq. Ft: 2,241
# of Stories: 1
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 1,620
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 192,100
Acres: 4.41
Zoning Code: LIA100
County Use Description: RURAL RESID-1 RESID
Location Information
Parcel Location Influence: Pond
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,241
Stories: 1.0
Lot Size: 4.41 acres
Style: Single Family Residential
Year Built: 1930
Year Renovated: 2010
County: Sonoma County
APN: 130050011000
Home facts updated by county records on Oct 28, 2026
Around this home
Schools
K - 12
Preschool & daycare
Oak Grove Elementary School
Public K • Assigned • 1.9mi
Oak Grove Elementary/Willowside Middle School
Charter 1-8 • Assigned • 2.0mi
6/10
Analy High School
Public 9-12 • Assigned • 3.1mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Historical weather
Santa Rosa, CA • 95401
Average low and high temperatures (°F)
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Sun exposure
In this area, properties receive around 10.8 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
10.8 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.20M – $1.45M
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