For sale
$3,600,000
Est. $24,211/mo —
Studio
•
— ba
•
10,312
sq ft

421 West St, Sebastopol, CA 95472

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About this home

Multi-familyProperty Type
1973Year Built
0.6 acresLot Size
$349Price/Sq.Ft.
Listed by Matthew Flaherty •DRE #DRE #02075798 • Colliers International
•415-288-7811 (agent)
•415-788-3100 (broker)
Listing updated:
Redfin checked: a minute ago
•Source:San Francisco MLS #326089095
4 days on Redfin • 137 views • 1 favorites

Payment calculator

$24,211 per month

Principal and interest$19,891
Property taxes
HOA dues
Home insurance
Utilities
Down payment
20% ($720,000)
Home price
$3,600,000
Loan details
30-yr fixed, 7.38%
5 minutes to get started. No credit impact. 

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Around this home

Schools

Park Side Elementary School

Public K-4 • Assigned • 0.3mi

9/10
Brook Haven Elementary School

Public 5-8 • Assigned • 0.5mi

5/10
Analy High School

Public 9-12 • Assigned • 0.3mi

8/10
Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Property details

  • Laundry & utility
  • Other laundry features
  • Heating & cooling
  • Other heating
  • Other cooling

Sale and tax history for 421 West St

Public record

Beds
16
Baths
14
Stories
2
Lot width
—
Lot depth
—
Lot size
0.6 Acres
Year renovated
1990
Finished Sq. Ft.
10,312
Unfinished Sq. Ft.
—
Total Sq. Ft.
10,312
Year built
1973
Style
Multi-Family (5+ Unit)
County
Sonoma County
APN
004252017000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 13, 2026.

Climate risks

1/10 Flood Factor

Minimal risk 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 91° expected this year, 17 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)
61
41
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43
69
45
66
46
73
49
76
51
77
52
82
53
79
55
76
50
63
46
57
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Oct
Nov
Dec

Sun exposure

76/ 100

Good sunlight

Sunscore

There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.1 hrs
4.1 hrs
JuneDecember
Provided by Shadowmap

Redfin Estimate for 421 West St

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GreatSchools Ratings provided by GreatSchools.org.