178 Helm is a 2,093 square foot house on a 0.42 acre lot with 2 bedrooms and 2 bathrooms. - it last sold on January 09, 2018 for $845,000. Based on Redfin's The Sea Ranch data, we estimate the home's value is $1,355,719.
Single-familyProperty Type
1994Year Built
0.42 acresLot Size
$648Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,355,719
$511K since sold in January 2018$35K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 13.2% lower than the average sale price ($1.56M) 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 9, 2026 • Active
Building permit no plan check
Electrical
Apr 29, 2025 • Final
Building permit with plan check
Battery
Electrical
Solar
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: 4
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: SEA RANCH 35-C
Living Sq. Ft: 2,093
Building Sq. Ft: 2,592
# of Stories: 2
Legal Description: SEA RANCH 35-C LOT 77 TR 438
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 499
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 18,400
Legal Lot Number: 77
Acres: 0.4224
Zoning Code: CZ
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 2,093
Stories: 2.0
Lot Size: 0.42 acres
Style: Single Family Residential
Year Built: 1994
Year Renovated: 1994
County: Sonoma County
APN: 156450029000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Horicon Elementary School
Public K-8 • Assigned • 7.9mi
3/10
Point Arena High School
Public 9-12 • Assigned • 15.7mi
3/10
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
2/10 Heat Factor
7 days above 73° expected this year, 19 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
12 unhealthy days expected this year, 12 days in 30 years
Provided by First Street
Historical weather
The Sea Ranch, CA • 95497
Average low and high temperatures (°F)
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Sun exposure
In this area, properties receive around 10.4 hours in
June and 4.8 hours in December, placing it above the
U.S. average for solar exposure.
10.4 hrs
4.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.29M – $1.56M
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