23 Rio Vista Way is a 1,838 square foot house on a 5,200 square foot lot with 4 bedrooms and 2.5 bathrooms. - it last sold on January 03, 1992 for $147,500. Based on Redfin's Petaluma data, we estimate the home's value is $903,540.
Single-familyProperty Type
1950Year Built
5,200 sq ftLot Size
$492Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$903,540
$756K since sold in January 1992$36K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8.1% lower than the average sale price ($983K) 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
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
Oct 12, 2023 • Final
Residential mechanical - alteration, remodel or repair
HVAC
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: 2
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Wall Furnace
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 8
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: MADISON SQUARE 03-B
Living Sq. Ft: 1,838
Ground Floor Sq. Ft: 995
Building Sq. Ft: 1,838
# of Stories: 1
Legal Description: MAP 63 PG 31 LOT 6
Parking & Garage Information
Garage/Parking Sq. Ft: 282
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,200
Legal Lot Number: 6
Acres: 0.1194
Zoning Code: CITYPE
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 1,838
Stories: 1.0
Lot Size: 5,200 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1989
County: Sonoma County
APN: 007019017000
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 • 1.3mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
9/10 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
44
56
42
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Feb
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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
$859,000 – $1.04M
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