1133 Kelvin Rd is a 2,108 square foot house on a 9,583 square foot lot with 3 bedrooms and 3 bathrooms. - it last sold on December 16, 1993 for $203,000. Based on Redfin's El Sobrante data, we estimate the home's value is $798,704.
Single-familyProperty Type
1991Year Built
9,583 sq ftLot Size
$379Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$798,704
$596K since sold in December 1993$7,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.3% lower than the average sale price ($810K) 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
Sep 8, 2025 • Active
Building/residential/al/alteration
Replace a patio door with a new vinyl patio door.
Remodel
Jul 16, 2015 • Final
Building - residential re-roof
Tear off the existing asphalt roofing and install new composition shingles. The roof includes insulation.
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
Room Information
# of Rooms: 10
Exterior
Property Information
Living Sq. Ft: 2,108
Ground Floor Sq. Ft: 1,033
Building Sq. Ft: 2,108
# of Stories: 2
Legal Description: PCL MAP 142 PG 19 PCL C
Parking & Garage Information
Garage/Parking Sq. Ft: 466
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,583
Acres: 0.22
Zoning Code: R-7
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,108
Stories: 2.0
Lot Size: 9,583 square feet
Style: Single Family Residential
Year Built: 1991
Year Renovated: 1991
County: Contra Costa County
APN: 4260400702
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Murphy Elementary School
Public K-6 • Assigned • 1.1mi
5/10
Betty Reid Soskin Middle
Public 6-8 • Assigned • 0.2mi
2/10
De Anza Senior High School
Public 9-12 • Assigned • 1.7mi
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 89° expected this year, 15 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)
59
44
61
45
67
49
65
49
69
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68
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66
53
73
55
73
56
73
54
61
48
57
45
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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
$759,000 – $919,000
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