4020 Clayton Rd is a 1,102 square foot house on a 10,575 square foot lot with 3 bedrooms and 1 bathroom. - it last sold on April 28, 1971 for $24,000. Based on Redfin's Concord data, we estimate the home's value is $669,212.
Single-familyProperty Type
1950Year Built
10,575 sq ftLot Size
$607Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$669,212
$645K since sold in April 1971$9,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 18.5% lower than the average sale price ($822K) 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.
Zoning
CO
Community Office District
The CO district is applied to areas of the city appropriate for a mix of small-scale single and multiple tenant businesses, professional, and medical offices in low-rise buildings that are compatible with adjacent residential areas. Building intensity may be up to 1.0 FAR. Residential uses consistent with the residential medium density may also be allowed. The CO district is found along major thoroughfares including portions of East Street, Salvio Street, Willow Pass Road, Clayton Road, Oak Grove Road, Treat Boulevard, and Monument Boulevard. The CO district is consistent with and implements the community office (CO) land use designation of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Multiple units
Housing-Senior
Office
Research & development
Library
Veterinary clinic
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard
Property details
Interior
Room Information
# of Rooms: 6
Exterior
Property Information
Subdivision Name: ROSAL PARK
Living Sq. Ft: 1,102
Ground Floor Sq. Ft: 1,102
Building Sq. Ft: 1,102
# of Stories: 1
Legal Description: ROSAL PARK POR LOT 1 & 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,575
Legal Lot Number: 1
Acres: 0.2428
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,102
Stories: 1.0
Lot Size: 10,575 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1950
County: Contra Costa County
APN: 1321110197
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
El Monte Elementary School
Public K-5 • Assigned • 0.7mi
6/10
El Dorado Middle School
Public 6-8 • Assigned • 0.8mi
3/10
Concord High School
Public 9-12 • Assigned • 1.0mi
5/10
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
4/10 Fire Factor
2% chance of being 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 • 94521
Average low and high temperatures (°F)
60
40
64
43
72
47
72
48
80
52
85
55
85
56
91
59
86
58
79
54
64
46
57
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Dec
Sun exposure
In this area, properties receive around 11.8 hours in
June and 4.8 hours in December, placing it above the
U.S. average for solar exposure.
11.8 hrs
4.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$636,000 – $770,000
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