4400 Middle Two Rock Rd is a 3,536 square foot house on a 8.49 acre lot with 6 bedrooms and 3.5 bathrooms. - it last sold on February 19, 1998 for $87,200. Based on Redfin's Petaluma data, we estimate the home's value is $1,693,472.
Single-familyProperty Type
1962Year Built
8.49 acresLot Size
$479Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,693,472
$1.6M since sold in February 1998$4,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12.5% lower than the average sale price ($1.93M) 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.
Zoning and permits
Zoning
Permits
LEA B6 60
RC 50'
SR
Land Extensive Agriculture - B6 Combining District - 60 Acres Per Dwelling Unit
Enhances and protects lands best suited for permanent agricultural use and capable of relatively low production per acre of land; and Implements the land extensive agriculture land use category of the general plan and the policies of the Agricultural Resources Element. The adopted zoning maps shall specify the maximum permitted density, determined by gross acreage for all residential uses. Minimum front, side and rear yard requirements and the minimum parcel or lot size, if not otherwise specified, shall conform to the base district with which the B6 district is combined unless specifically approved otherwise by the planning commission.
Zone overlays
Riparian Corridor Combining Zone
Scenic Resources Combining District
Permitted uses
Include but are not limited to:
Equestrian facility
Greenhouse / nursery
Livestock production
Housing-Single unit
Agriculture-Cropland
Park & open space
Apr 14, 2026 • Active
Building permit no plan check
Electrical
Jun 11, 2016 • Final
Building history record
Work on plumbing.
Plumbing
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
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 9
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: LAGUNA DE SAN ANTONIO RHO
Living Sq. Ft: 3,536
Building Sq. Ft: 3,906
# of Stories: 1
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 306
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 369,824
Legal Lot Number: 7
Legal Block Number: 3
Acres: 8.49
Zoning Code: LEA60
County Use Description: RURAL RESID-2+ RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 6
Baths: 3.5
Sq. Ft.: 3,536
Stories: 1.0
Lot Size: 8.49 acres
Style: Single Family Residential
Year Built: 1962
Year Renovated: 1962
County: Sonoma County
APN: 022200022000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Two Rock Elementary School
Public K-6 • Assigned • 1.7mi
8/10
Petaluma Junior High School
Public 7-8 • Assigned • 5.3mi
4/10
Petaluma High School
Public 9-12 • Assigned • 6.0mi
8/10
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
3/10 Fire Factor
0.77% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 89° expected this year, 16 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
14 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
Petaluma, CA • 94952
Average low and high temperatures (°F)
59
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67
51
73
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73
52
72
48
61
44
56
42
Jan
Feb
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Apr
May
Jun
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Sun exposure
In this area, properties receive around 10.9 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
10.9 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.61M – $1.95M
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