3972 Harmon Rd is a 1,022 square foot house on a 42 acre lot with 3 bedrooms and 1 bathroom. Based on Redfin's El Sobrante data, we estimate the home's value is $725,528.
Single-familyProperty Type
1951Year Built
42 acresLot Size
$710Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$725,528
$9,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.1% higher than the average sale price ($659K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$3,189 (+2.3%)
$106,657 + $58,754
$165,411
2024
$3,116 (+2.6%)
$104,566 + $57,602
$162,168
2023
$3,037 (+2.0%)
$102,516 + $56,473
$158,989
2022
$2,977 (+1.3%)
$100,506 + $55,366
$155,872
2021
$2,940 (+4.2%)
$98,536 + $54,281
$152,817
2020
$2,821 (+1.2%)
$96,604 + $53,217
$149,821
2019
$2,789 (+4.7%)
$95,614 + $52,672
$148,286
2018
$2,664 (+3.5%)
$93,740 + $51,640
$145,380
2017
$2,575 (+2.8%)
$90,100 + $49,636
$139,736
2016
$2,505 (+1.6%)
$90,100 + $49,636
$139,736
2015
$2,466 (+0.7%)
$88,334 + $48,663
$136,997
2014
$2,449 (+2.2%)
$85,304 + $46,995
$132,299
2013
$2,397 (+7.7%)
$85,304 + $46,995
$132,299
2012
$2,227 (+3.5%)
$84,919 + $46,783
$131,702
2011
$2,152 (+4.3%)
$83,254 + $45,866
$129,120
2010
$2,063 (+1.3%)
$81,622 + $44,967
$126,589
2009
$2,037 (+10.1%)
$81,012 + $44,631
$125,643
2008
$1,849
$81,205 + $44,738
$125,943
Tax history for 3972 Harmon Rd
Year
Property tax
Land + Additions
Assessment*
2025
$3,189 (+2.3%)
$106,657 + $58,754
$165,411
2024
$3,116 (+2.6%)
$104,566 + $57,602
$162,168
2023
$3,037 (+2.0%)
$102,516 + $56,473
$158,989
2022
$2,977 (+1.3%)
$100,506 + $55,366
$155,872
2021
$2,940 (+4.2%)
$98,536 + $54,281
$152,817
2020
$2,821 (+1.2%)
$96,604 + $53,217
$149,821
2019
$2,789 (+4.7%)
$95,614 + $52,672
$148,286
2018
$2,664 (+3.5%)
$93,740 + $51,640
$145,380
2017
$2,575 (+2.8%)
$90,100 + $49,636
$139,736
2016
$2,505 (+1.6%)
$90,100 + $49,636
$139,736
2015
$2,466 (+0.7%)
$88,334 + $48,663
$136,997
2014
$2,449 (+2.2%)
$85,304 + $46,995
$132,299
2013
$2,397 (+7.7%)
$85,304 + $46,995
$132,299
2012
$2,227 (+3.5%)
$84,919 + $46,783
$131,702
2011
$2,152 (+4.3%)
$83,254 + $45,866
$129,120
2010
$2,063 (+1.3%)
$81,622 + $44,967
$126,589
2009
$2,037 (+10.1%)
$81,012 + $44,631
$125,643
2008
$1,849
$81,205 + $44,738
$125,943
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Sep 5, 2006 • Final
Building - residential re-roof
Tear off existing roofing and apply new felt underlayment and composition shingles.
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: 6
Exterior
Property Information
Subdivision Name: GREEN ACRES
Living Sq. Ft: 1,022
Ground Floor Sq. Ft: 1,022
Building Sq. Ft: 1,022
# of Stories: 1
Legal Description: GREEN ACRES 42
Parking & Garage Information
Garage/Parking Sq. Ft: 252
Lot Information
# of Buildings: 1
Land Sq. Ft: 1,829,520
Legal Lot Number: 42
Acres: 42
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,022
Stories: 1.0
Lot Size: 42 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1951
County: Contra Costa County
APN: 4350350130
Home facts updated by county records on Oct 10, 2026
Around this home
Schools
Sheldon Elementary School
Public K-6 • Assigned • 0.3mi
6/10
Betty Reid Soskin Middle
Public 6-8 • Assigned • 1.5mi
2/10
De Anza Senior High School
Public 9-12 • Assigned • 0.9mi
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)
59
44
61
45
67
49
65
49
69
51
68
52
69
54
73
55
73
58
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
$690,000 – $835,000
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