4304 Harmon Rd is a 1,022 square foot house on a 5,220 square foot lot with 3 bedrooms and 1 bathroom. - it last sold on April 27, 1987 for $80,000. Based on Redfin's El Sobrante data, we estimate the home's value is $565,144.
Single-familyProperty Type
1951Year Built
5,220 sq ftLot Size
$553Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$565,144
$485K since sold in April 1987$6,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.9% higher than the average sale price ($539K) 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
Jan 26, 2025 • Active
Building - residential electrical
Upgrade the electrical service panel from 100 amps to 200 amps.
Electrical
Jul 3, 2019 • Final
Building - residential re-roof
Remove and replace the roofing with composition shingles on a residential building.
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
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 6
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Bungalow
Construction Type: Frame
Building Construction Quality: Average
Exterior Wall: Stucco
Property Information
Subdivision Name: GREEN ACRES
Living Sq. Ft: 1,022
Ground Floor Sq. Ft: 1,022
Building Sq. Ft: 1,184
# of Stories: 1
Legal Description: GREEN ACRES LOT 30
Parking & Garage Information
# of Parking Spaces: 1
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 162
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,220
Legal Lot Number: 30
Acres: 0.1198
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,022
Stories: 1.0
Lot Size: 5,220 square feet
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1951
County: Contra Costa County
APN: 4350350015
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Sheldon Elementary School
Public K-6 • Assigned • 0.4mi
6/10
Betty Reid Soskin Middle
Public 6-8 • Assigned • 1.5mi
2/10
De Anza Senior High School
Public 9-12 • Assigned • 1.0mi
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
0.46% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 88° 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)
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61
48
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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
$537,000 – $650,000
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