bridgeMLS, Bay East AOR, or Contra Costa AOR #28115508
May 31, 1998
Sold
$168,000
$98/sq ft
Mar 30, 1998
Listing Removed
—
Feb 11, 1998
Listed
$172,000
$101/sq ft
Public Records
Sep 1, 1979
Sold
$68,000
$40/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$4,477 (+2.4%)
$100,960 + $172,627
$273,587
2024
$4,373 (+2.5%)
$98,981 + $169,243
$268,224
2023
$4,268 (+1.8%)
$97,041 + $165,925
$262,966
2022
$4,195 (+0.9%)
$95,139 + $162,672
$257,811
2021
$4,159 (+4.4%)
$93,274 + $159,483
$252,757
2020
$3,983 (+1.4%)
$91,446 + $156,356
$247,802
2019
$3,930 (+4.4%)
$90,509 + $154,753
$245,262
2018
$3,764 (+3.0%)
$88,735 + $151,719
$240,454
2017
$3,654 (+2.0%)
$85,291 + $145,829
$231,120
2016
$3,582 (+1.0%)
$85,291 + $145,829
$231,120
2015
$3,548 (+0.9%)
$83,619 + $142,970
$226,589
2014
$3,516 (+1.8%)
$80,750 + $138,065
$218,815
2013
$3,452 (+4.0%)
$80,750 + $138,065
$218,815
2012
$3,318 (+2.3%)
$80,386 + $137,442
$217,828
2011
$3,243 (+4.4%)
$78,810 + $134,748
$213,558
2010
$3,107 (+0.8%)
$77,265 + $132,106
$209,371
2009
$3,084 (+9.1%)
$76,688 + $131,119
$207,807
2008
$2,826
$76,871 + $131,431
$208,302
Tax history for 991 Kelvin Rd
Year
Property tax
Land + Additions
Assessment*
2025
$4,477 (+2.4%)
$100,960 + $172,627
$273,587
2024
$4,373 (+2.5%)
$98,981 + $169,243
$268,224
2023
$4,268 (+1.8%)
$97,041 + $165,925
$262,966
2022
$4,195 (+0.9%)
$95,139 + $162,672
$257,811
2021
$4,159 (+4.4%)
$93,274 + $159,483
$252,757
2020
$3,983 (+1.4%)
$91,446 + $156,356
$247,802
2019
$3,930 (+4.4%)
$90,509 + $154,753
$245,262
2018
$3,764 (+3.0%)
$88,735 + $151,719
$240,454
2017
$3,654 (+2.0%)
$85,291 + $145,829
$231,120
2016
$3,582 (+1.0%)
$85,291 + $145,829
$231,120
2015
$3,548 (+0.9%)
$83,619 + $142,970
$226,589
2014
$3,516 (+1.8%)
$80,750 + $138,065
$218,815
2013
$3,452 (+4.0%)
$80,750 + $138,065
$218,815
2012
$3,318 (+2.3%)
$80,386 + $137,442
$217,828
2011
$3,243 (+4.4%)
$78,810 + $134,748
$213,558
2010
$3,107 (+0.8%)
$77,265 + $132,106
$209,371
2009
$3,084 (+9.1%)
$76,688 + $131,119
$207,807
2008
$2,826
$76,871 + $131,431
$208,302
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Permits
Beds
3
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
7,700 Sq. Ft.
Year renovated
1949
Sq. Ft.
1,706
Year built
1949
Style
Single Family Residential
County
Contra Costa County
APN
4261140141
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
Jan 5, 2023 • Final
Building - residential re-roof
Tear off the existing roof and install new composition shingles on a detached garage.
Roofing
Jan 30, 2010 • Final
Building/residential/al/alteration
Raise the foundation mudsill.
Addition
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
Parking
Parking Information
Garage Spaces: 1
Covered Spaces: 1
Parking Features: Detached
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Interior Features
Interior Features: Dining Area, Family Room
Laundry Features: Hookups Only, Laundry Room
Street Level Features: 4 Bedrooms, 2 Baths, Primary Bedrm Suite - 1, Main Entry
Fireplaces Total: 1
Has Fireplace
Flooring: Vinyl, Carpet
Room Information
Rooms Total: 8
Fireplace Features: Family Room
Exterior
Building Information
Construction Materials: Wood Siding
Building Area Total: 1,706
Exterior Features
Roof: Shingle
Pool Information
Pool Features: In Ground
Has Private Pool
Property Information
Living Area: 1706
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1949
Lot Information
Lot Size Square Feet: 7700
Lot Size Area: 0.17
Lot Size Units: Acres
Lot Size Acres: 0.17
Zoning: R-6
Utilities
Utility Information
Water Source: Public
Heating & Cooling
Has Heating
Heating: Wall Furnace
Location
School Information
High School District: West Contra Costa (510) -231-1100
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,706
Stories: 1.0
Lot Size: 7,700 square feet
Style: Single Family Residential
Year Built: 1949
Year Renovated: 1949
County: Contra Costa County
APN: 4261140141
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Murphy Elementary School
Public K-6 • Assigned • 1.0mi
5/10
Betty Reid Soskin Middle
Public 6-8 • Assigned • 0.2mi
2/10
De Anza Senior High School
Public 9-12 • Assigned • 1.5mi
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
$636,000 – $770,000
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 1998. This data may not match public records. Learn more.