38 Rio Vista Way is a 1,076 square foot house on a 5,000 square foot lot with 3 bedrooms and 1 bathroom. - it last sold on July 29, 2020 for $650,000. Based on Redfin's Petaluma data, we estimate the home's value is $788,460.
Single-familyProperty Type
1950Year Built
5,000 sq ftLot Size
$733Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$788,460
$138K since sold in July 2020$6,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 19.4% higher than the average sale price ($660K) 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
R3
Residential 3 Zone
The R3 zone is applied to the older neighborhoods surrounding the downtown that are characterized by a variety of housing types and densities in a walkable context. Densities range from 6.1 to 12.0 units per acre. The R3 zone is consistent with and implements the diverse low density residential land use classification of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Multiple units
Housing-Senior
Lodging & hospitality
Fire house
Police station
Park & open space
Property details
Interior
Bathroom Information
# of Full Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 6
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: MADISON SQUARE 03 B
Living Sq. Ft: 1,076
Ground Floor Sq. Ft: 1,076
Building Sq. Ft: 1,392
# of Stories: 1
Legal Description: LOT 21 MADISON SQUARE NO 3 SUB B
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 188
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,000
Legal Lot Number: 21
Legal Block Number: 33
Acres: 0.1148
Zoning Code: CITYPE
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,076
Stories: 1.0
Lot Size: 5,000 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1980
County: Sonoma County
APN: 007018004000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
McKinley Elementary School
Public K-6 • Assigned • 0.2mi
4/10
Petaluma Junior High School
Public 7-8 • Assigned • 1.4mi
4/10
Petaluma High School
Public 9-12 • Assigned • 1.2mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
8/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.46% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 91° 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
12 unhealthy days expected this year, 12 days in 30 years
Provided by First Street
Historical weather
Petaluma, CA • 94952
Average low and high temperatures (°F)
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72
48
61
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56
42
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Sun exposure
In this area, properties receive around 11.1 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.1 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$750,000 – $907,000
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