2509 Caballo Ranchero Dr is a 3,371 square foot house on a 1 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on May 14, 2010 for $1,310,000. Based on Redfin's Diablo data, we estimate the home's value is $3,413,479.
Single-familyProperty Type
1973Year Built
1 acresLot Size
$1,013Est. Price/Sq.Ft.
4 car garageParking
Source:Public Records
Redfin Estimate
$3,413,479
$2.1M since sold in May 2010$103K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.9% higher than the average sale price ($3.16M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40271744
Mar 30, 2010
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2025
$20,020 (+2.1%)
$1,438,421 + $466,360
$1,904,781
2024
$19,605 (+1.6%)
$1,410,217 + $280,746
$1,690,963
2023
$19,295 (+0.8%)
$1,382,566 + $275,242
$1,657,808
2022
$19,134 (+2.2%)
$1,355,457 + $269,846
$1,625,303
2021
$18,721 (+0.9%)
$1,328,880 + $264,555
$1,593,435
2020
$18,551 (+1.2%)
$1,302,824 + $259,368
$1,562,192
2019
$18,328 (+3.9%)
$1,289,466 + $256,709
$1,546,175
2018
$17,648 (+4.2%)
$1,264,183 + $251,676
$1,515,859
2017
$16,943 (+1.2%)
$1,215,095 + $241,904
$1,456,999
2016
$16,740 (+1.3%)
$1,215,095 + $241,904
$1,456,999
2015
$16,532 (+1.3%)
$1,191,270 + $237,161
$1,428,431
2014
$16,315 (+1.1%)
$1,150,393 + $229,024
$1,379,417
2013
$16,134 (+18.9%)
$1,150,393 + $229,024
$1,379,417
2012
$13,573 (−6.3%)
$1,126,694 + $224,306
$1,351,000
2011
$14,488 (+151.4%)
$968,656 + $192,844
$1,161,500
2010
$5,762 (−0.1%)
$1,036,625 + $206,375
$1,243,000
2009
$5,769 (+3.5%)
$197,927 + $251,426
$449,353
2008
$5,574
$198,398 + $252,024
$450,422
Tax history for 2509 Caballo Ranchero Dr
Year
Property tax
Land + Additions
Assessment*
2025
$20,020 (+2.1%)
$1,438,421 + $466,360
$1,904,781
2024
$19,605 (+1.6%)
$1,410,217 + $280,746
$1,690,963
2023
$19,295 (+0.8%)
$1,382,566 + $275,242
$1,657,808
2022
$19,134 (+2.2%)
$1,355,457 + $269,846
$1,625,303
2021
$18,721 (+0.9%)
$1,328,880 + $264,555
$1,593,435
2020
$18,551 (+1.2%)
$1,302,824 + $259,368
$1,562,192
2019
$18,328 (+3.9%)
$1,289,466 + $256,709
$1,546,175
2018
$17,648 (+4.2%)
$1,264,183 + $251,676
$1,515,859
2017
$16,943 (+1.2%)
$1,215,095 + $241,904
$1,456,999
2016
$16,740 (+1.3%)
$1,215,095 + $241,904
$1,456,999
2015
$16,532 (+1.3%)
$1,191,270 + $237,161
$1,428,431
2014
$16,315 (+1.1%)
$1,150,393 + $229,024
$1,379,417
2013
$16,134 (+18.9%)
$1,150,393 + $229,024
$1,379,417
2012
$13,573 (−6.3%)
$1,126,694 + $224,306
$1,351,000
2011
$14,488 (+151.4%)
$968,656 + $192,844
$1,161,500
2010
$5,762 (−0.1%)
$1,036,625 + $206,375
$1,243,000
2009
$5,769 (+3.5%)
$197,927 + $251,426
$449,353
2008
$5,574
$198,398 + $252,024
$450,422
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Nov 13, 2025 • Active
Building - residential solar photovoltaic
Install a solar photovoltaic array with modules.
Electrical
Solar
Oct 3, 2023 • Active
Building/residential/r/adu-2nd unit
ADU
Demolition
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
Air Conditioning Type: Central
Heating Fuel Type: Gas
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 3
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Good
Foundation Type: Raised W/Crawlspace
Building Construction Quality: Good
Exterior Wall: Wood Siding
Pool Information
Has Pool
Property Information
Living Sq. Ft: 3,371
Ground Floor Sq. Ft: 3,371
Building Sq. Ft: 3,371
# of Stories: 1
Legal Description: RECORD OF SURVEY 29 LSM 15 LOT B
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Garage/Carport
Garage/Parking Sq. Ft: 400
Lot Information
# of Buildings: 1
Land Sq. Ft: 43,700
Legal Lot Number: B
Acres: 1.0032
Zoning Code: R-40
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,371
Stories: 1.0
Lot Size: 1 acres
Style: Single Family Residential
Year Built: 1973
Year Renovated: 1974
County: Contra Costa County
APN: 1953520101
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Green Valley Elementary School
Public K-5 • Assigned • 1.2mi
10/10
Los Cerros Middle School
Public 6-8 • Assigned • 1.2mi
10/10
Monte Vista High School
Public 9-12 • Assigned • 1.3mi
10/10
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
6/10 Fire Factor
10% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 95° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
14 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
Diablo, CA • 94528
Average low and high temperatures (°F)
59
41
62
43
69
47
68
48
75
51
80
54
83
56
86
58
83
59
76
54
62
46
57
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
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
$3.24M – $3.93M
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