550 First St is a 1,879 square foot house on a 1.14 acre lot with 3 bedrooms and 2 bathrooms. - it last sold on June 09, 1998 for $370,000. Based on Redfin's Sebastopol data, we estimate the home's value is $1,247,199.
Single-familyProperty Type
1986Year Built
1.14 acresLot Size
$664Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,247,199
$877K since sold in June 1998$27K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.9% lower than the average sale price ($1.35M) 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
R2
Single-Family Residential District
The purpose of the R2 District is to implement the Low Density Residential land use category of the General Plan, and the General Plan goal of preserving the communitys rural agricultural setting and residential character. The R2 District allows densities up to approximately 2.5 units per acre.
Permitted uses
Include but are not limited to:
Agriculture
Garden center
Day care facility
Housing-Group
Housing-Single unit
Housing-Other
Park & open space
Property details
Interior
Bathroom Information
# of Full Baths: 2
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: SEBASTOPOL
Living Sq. Ft: 1,879
Ground Floor Sq. Ft: 1,320
Building Sq. Ft: 1,879
# of Stories: 2
Legal Description: 79 FORM PT OF 4-171-12 PM 62
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 768
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 49,658
Legal Lot Number: 2
Acres: 1.14
Zoning Code: CITYSE
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,879
Stories: 2.0
Lot Size: 1.14 acres
Style: Single Family Residential
Year Built: 1986
Year Renovated: 1987
County: Sonoma County
APN: 004171017000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Park Side Elementary School
Public K-4 • Assigned • 0.3mi
9/10
Brook Haven Elementary School
Public 5-8 • Assigned • 0.6mi
5/10
Analy High School
Public 9-12 • Assigned • 0.8mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 90° 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
Sebastopol, CA • 95472
Average low and high temperatures (°F)
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74
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82
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79
53
76
50
63
46
57
44
Jan
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
$1.19M – $1.44M
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