3140 Cowell Rd is a 1,364 square foot house on a 0.4 acre lot with 3 bedrooms and 2 bathrooms. - it last sold on March 08, 1989 for $149,000. Based on Redfin's Concord data, we estimate the home's value is $762,579.
Single-familyProperty Type
1918Year Built
0.4 acresLot Size
$559Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$762,579
$614K since sold in March 1989$21K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.2% higher than the average sale price ($692K) of 5 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RS10
Residential Single-Family District
The RS district is applied to areas of the city appropriate for single-family residential uses in neighborhoods at densities of 2.5 to 10 units per net acre, subject to appropriate standards. The RS zoning districts generally apply to the single-family residential districts with development existing at the time of the adoption of this development code. The specific allowable density for each parcel is shown on the zoning map by a numerical suffix residential density designator RS-10 corresponding to the minimum lot size 10000. The RS district is consistent with and implements the low density residential (LDR) land use designation of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Recreation
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard
Park & open space
Jun 24, 2025 • Active
Reroof
Perform a residential reroof with a complete tear off and install new composition shingles.
Roofing
Nov 20, 2018 • Final
Building
Install a new electrical subpanel and five circuits in the kitchen. Add recessed LED lighting to the kitchen using an existing switch.
Electrical
Kitchen
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: 7
Exterior
Property Information
Living Sq. Ft: 1,364
Ground Floor Sq. Ft: 1,364
Building Sq. Ft: 1,364
# of Stories: 1
Legal Description: RECORD OF SURVEY 45 LSM 35 POR PCL A
Parking & Garage Information
Garage/Parking Sq. Ft: 528
Lot Information
# of Buildings: 1
Land Sq. Ft: 17,250
Acres: 0.396
County Use Description: SINGLE FAMILY
Location Information
Parcel Location Influence: Canal
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,364
Stories: 1.0
Lot Size: 0.4 acres
Style: Single Family Residential
Year Built: 1918
Year Renovated: 1950
County: Contra Costa County
APN: 1300110275
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
El Monte Elementary School
Public K-5 • Assigned • 0.6mi
6/10
El Dorado Middle School
Public 6-8 • Assigned • 2.0mi
3/10
Mt. Diablo High School
Public 9-12 • Assigned • 1.4mi
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
4/10 Heat Factor
7 days above 96° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
18 unhealthy days expected this year, 19 days in 30 years
Provided by First Street
Historical weather
Concord, CA • 94518
Average low and high temperatures (°F)
61
41
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44
72
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79
55
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83
58
90
60
86
60
79
55
65
47
57
45
Jan
Feb
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May
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Sun exposure
In this area, properties receive around 11.5 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.5 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$725,000 – $877,000
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