817 Marin Rd is a 1,376 square foot house on a 10,800 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on October 31, 2022 for $520,000. Based on Redfin's El Sobrante data, we estimate the home's value is $664,431.
Single-familyProperty Type
1948Year Built
10,800 sq ftLot Size
$483Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$664,431
$144K since sold in October 2022$10K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.4% higher than the average sale price ($608K) 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
Mar 19, 2025 • Active
Building - residential re-roof
Remove the existing roof and install new shingles. A separate electrical permit is required to disconnect and reconnect the solar panels.
Electrical
Roofing
Solar
Feb 14, 2025 • Active
Building - residential electrical
Remove and reinstall solar modules on a residential building due to a roof replacement. No changes will be made to the existing system.
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
Room Information
# of Rooms: 6
Exterior
Property Information
Subdivision Name: SANTA RITA ACRES 07
Living Sq. Ft: 1,376
Ground Floor Sq. Ft: 1,376
Building Sq. Ft: 1,376
# of Stories: 1
Legal Description: SANTA RITA ACRES #7 424
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,800
Legal Lot Number: 424
Acres: 0.2479
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,376
Stories: 1.0
Lot Size: 10,800 square feet
Style: Single Family Residential
Year Built: 1948
Year Renovated: 1948
County: Contra Costa County
APN: 4261810156
Home facts updated by county records on Oct 10, 2026
Around this home
Schools
Murphy Elementary School
Public K-6 • Assigned • 0.8mi
5/10
Betty Reid Soskin Middle
Public 6-8 • Assigned • 0.3mi
2/10
De Anza Senior High School
Public 9-12 • Assigned • 1.3mi
4/10
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
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 88° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
15 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
El Sobrante, CA • 94803
Average low and high temperatures (°F)
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67
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69
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69
54
73
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73
58
73
54
61
48
57
45
Jan
Feb
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Sun exposure
In this area, properties receive around 11.1 hours in
June and 5 hours in December, placing it above the
U.S. average for solar exposure.
11.1 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$632,000 – $765,000
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