911 Kelvin Rd is a 750 square foot house on a 7,500 square foot lot with 2 bedrooms and 1 bathroom. Based on Redfin's El Sobrante data, we estimate the home's value is $549,830.
Single-familyProperty Type
1949Year Built
7,500 sq ftLot Size
$733Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$549,830
$4,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.2% higher than the average sale price ($528K) 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
$1,826 (+2.3%)
$23,325 + $35,385
$58,710
2024
$1,785 (+3.2%)
$22,868 + $34,692
$57,560
2023
$1,730 (+2.8%)
$22,420 + $34,012
$56,432
2022
$1,683 (+2.3%)
$21,981 + $33,346
$55,327
2021
$1,645 (+4.0%)
$21,550 + $32,693
$54,243
2020
$1,582 (+0.7%)
$21,128 + $32,052
$53,180
2019
$1,571 (+5.7%)
$20,912 + $31,724
$52,636
2018
$1,486 (+4.8%)
$20,502 + $31,102
$51,604
2017
$1,418 (+5.0%)
$19,706 + $29,896
$49,602
2016
$1,351 (+3.4%)
$19,706 + $29,896
$49,602
2015
$1,307 (+0.2%)
$19,320 + $29,310
$48,630
2014
$1,304 (+3.1%)
$18,658 + $28,305
$46,963
2013
$1,264 (+7.2%)
$18,658 + $28,305
$46,963
2012
$1,180 (+6.7%)
$18,574 + $28,178
$46,752
2011
$1,106 (+4.2%)
$18,210 + $27,626
$45,836
2010
$1,061 (+2.8%)
$17,853 + $27,085
$44,938
2009
$1,033 (+12.9%)
$17,720 + $26,883
$44,603
2008
$915
$17,763 + $26,947
$44,710
Tax history for 911 Kelvin Rd
Year
Property tax
Land + Additions
Assessment*
2025
$1,826 (+2.3%)
$23,325 + $35,385
$58,710
2024
$1,785 (+3.2%)
$22,868 + $34,692
$57,560
2023
$1,730 (+2.8%)
$22,420 + $34,012
$56,432
2022
$1,683 (+2.3%)
$21,981 + $33,346
$55,327
2021
$1,645 (+4.0%)
$21,550 + $32,693
$54,243
2020
$1,582 (+0.7%)
$21,128 + $32,052
$53,180
2019
$1,571 (+5.7%)
$20,912 + $31,724
$52,636
2018
$1,486 (+4.8%)
$20,502 + $31,102
$51,604
2017
$1,418 (+5.0%)
$19,706 + $29,896
$49,602
2016
$1,351 (+3.4%)
$19,706 + $29,896
$49,602
2015
$1,307 (+0.2%)
$19,320 + $29,310
$48,630
2014
$1,304 (+3.1%)
$18,658 + $28,305
$46,963
2013
$1,264 (+7.2%)
$18,658 + $28,305
$46,963
2012
$1,180 (+6.7%)
$18,574 + $28,178
$46,752
2011
$1,106 (+4.2%)
$18,210 + $27,626
$45,836
2010
$1,061 (+2.8%)
$17,853 + $27,085
$44,938
2009
$1,033 (+12.9%)
$17,720 + $26,883
$44,603
2008
$915
$17,763 + $26,947
$44,710
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 30, 2010 • Final
Building/residential/rp/repair
Repair the bathroom floor and work on the central heating and air conditioning system.
Bathroom
HVAC
Remodel
Sep 12, 2005 • Final
Building - residential re-roof
Remove and replace roofing with class A 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: 5
Exterior
Property Information
Subdivision Name: EL SOBRANTE MANOR #4
Living Sq. Ft: 750
Ground Floor Sq. Ft: 750
Building Sq. Ft: 750
# of Stories: 1
Legal Description: EL SOBRANTE MANOR #4 298
Parking & Garage Information
Garage/Parking Sq. Ft: 240
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,500
Legal Lot Number: 298
Acres: 0.1722
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 750
Stories: 1.0
Lot Size: 7,500 square feet
Style: Single Family Residential
Year Built: 1949
Year Renovated: 1949
County: Contra Costa County
APN: 4261210183
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Murphy Elementary School
Public K-6 • Assigned • 0.8mi
5/10
Betty Reid Soskin Middle
Public 6-8 • Assigned • 0.3mi
2/10
De Anza Senior High School
Public 9-12 • Assigned • 1.4mi
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
51
68
52
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
$523,000 – $633,000
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