18117 Madera Rd is a 1,341 square foot multi-family home on a 3,200 square foot lot with 2 bedrooms and 2 bathrooms. Based on Redfin's Sonoma data, we estimate the home's value is $660,760.
Multi-familyProperty Type
1951Year Built
3,200 sq ftLot Size
$493Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$660,760
$51K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.4% lower than the average sale price ($729K) 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
Jun 11, 2016 • Final
Building permit with plan check
Electrical
Roofing
Jun 11, 2016 • Final
Building permit with plan check
Electrical
Remodel
Roofing
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
Room Information
# of Rooms: 6
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: BOYES SPGS PARK A
Living Sq. Ft: 1,341
Building Sq. Ft: 1,824
# of Stories: 1
Legal Description: 1973 FORM 56-411-13 & PT TO 17 BY MAP DEPT
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 483
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 3,200
Legal Lot Number: 4-6
Legal Block Number: 13
Acres: 0.0735
Zoning Code: R15UA
County Use Description: DUPLEX
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 1,341
Stories: 1.0
Lot Size: 3,200 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1951
Year Renovated: 1963
County: Sonoma County
APN: 056411016000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Flowery Elementary School
Public K-5 • Assigned • 0.5mi
5/10
Adele Harrison Middle School
Public 6-8 • Assigned • 2.6mi
4/10
Sonoma Valley High School
Public 9-12 • Assigned • 2.5mi
7/10
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
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 96° expected this year, 16 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
19 unhealthy days expected this year, 19 days in 30 years
Provided by First Street
Historical weather
Sonoma, CA • 95476
Average low and high temperatures (°F)
62
40
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42
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46
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47
78
51
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82
54
89
55
86
56
80
51
65
46
59
43
Jan
Feb
Mar
Apr
May
Jun
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Sun exposure
In this area, properties receive around 11.3 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.3 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$628,000 – $760,000
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