ENTERTAIN IN BACKYARD WITH GUNITE POOL,SPA,COVERED PATIO RETREAT WITH REFRIGERATOR,WET BAR,POOL CHANGING ROOM WITH TOILET&SHOWER,RV & BOAT PARKING,INTERIOR FRESHLY PAINTED,NEW LIGHT CARPETING IN FAMILY ROOM+MSTR. BD
Single-familyProperty Type
1972Year Built
10,454 sq ftLot Size
$546Est. Price/Sq.Ft.
7 car garageParking
Listed by Alice Ponti• CENTURY 21 DIABLO VALLEY REALT
bridgeMLS, Bay East AOR, or Contra Costa AOR #21000129
Feb 17, 2015
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11075698
Mar 23, 2001
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11084895
Mar 23, 2001
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11073627
Jan 6, 2001
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11021895
Aug 12, 1999
Sold
$248,500
$154/sq ft
Jul 11, 1999
Listing Removed
—
Jul 7, 1999
Listed
$248,500
$154/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #29020844
Aug 12, 1999
Sold
$248,500
$154/sq ft
Jul 11, 1999
Listing Removed
—
Jul 7, 1999
Listed
$248,500
$154/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #10220002
Aug 29, 1996
Listing Removed
—
Public Records
Aug 28, 1996
Sold
$200,000
$124/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #26220002
Jul 30, 1996
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2025
$6,003 (+3.3%)
$155,187 + $234,359
$389,546
2024
$5,813 (+2.7%)
$152,145 + $229,764
$381,909
2023
$5,660 (+2.2%)
$149,162 + $225,259
$374,421
2022
$5,538 (+3.2%)
$146,238 + $220,843
$367,081
2021
$5,364 (+1.3%)
$143,371 + $216,513
$359,884
2020
$5,297 (+1.3%)
$140,560 + $212,268
$352,828
2019
$5,230 (+4.5%)
$139,119 + $210,092
$349,211
2018
$5,004 (+4.2%)
$136,392 + $205,973
$342,365
2017
$4,803 (+3.8%)
$131,097 + $197,976
$329,073
2016
$4,625 (+2.5%)
$131,097 + $197,976
$329,073
2015
$4,513 (+3.1%)
$128,527 + $194,095
$322,622
2014
$4,377 (+3.7%)
$124,118 + $187,436
$311,554
2013
$4,221 (+9.8%)
$124,118 + $187,436
$311,554
2012
$3,845 (−0.4%)
$123,558 + $186,589
$310,147
2011
$3,860 (−1.0%)
$112,545 + $169,955
$282,500
2010
$3,899 (+0.3%)
$114,934 + $173,566
$288,500
2009
$3,888 (+2.9%)
$117,874 + $178,005
$295,879
2008
$3,779
$118,155 + $178,428
$296,583
Tax history for 3838 Cowell Rd
Year
Property tax
Land + Additions
Assessment*
2025
$6,003 (+3.3%)
$155,187 + $234,359
$389,546
2024
$5,813 (+2.7%)
$152,145 + $229,764
$381,909
2023
$5,660 (+2.2%)
$149,162 + $225,259
$374,421
2022
$5,538 (+3.2%)
$146,238 + $220,843
$367,081
2021
$5,364 (+1.3%)
$143,371 + $216,513
$359,884
2020
$5,297 (+1.3%)
$140,560 + $212,268
$352,828
2019
$5,230 (+4.5%)
$139,119 + $210,092
$349,211
2018
$5,004 (+4.2%)
$136,392 + $205,973
$342,365
2017
$4,803 (+3.8%)
$131,097 + $197,976
$329,073
2016
$4,625 (+2.5%)
$131,097 + $197,976
$329,073
2015
$4,513 (+3.1%)
$128,527 + $194,095
$322,622
2014
$4,377 (+3.7%)
$124,118 + $187,436
$311,554
2013
$4,221 (+9.8%)
$124,118 + $187,436
$311,554
2012
$3,845 (−0.4%)
$123,558 + $186,589
$310,147
2011
$3,860 (−1.0%)
$112,545 + $169,955
$282,500
2010
$3,899 (+0.3%)
$114,934 + $173,566
$288,500
2009
$3,888 (+2.9%)
$117,874 + $178,005
$295,879
2008
$3,779
$118,155 + $178,428
$296,583
*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
Zoning
Permits
Beds
4
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
10,454 Sq. Ft.
Year renovated
1972
Sq. Ft.
1,610
Year built
1971
Style
Single Family Residential
County
Contra Costa County
APN
1301400170
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 9, 2026.
RS12
Residential Single-Family District
The RS district is applied to areas of the city appropriate for single-family residential uses in neighborhoods at densities of 2.5 to 10 units per net acre, subject to appropriate standards. The RS zoning districts generally apply to the single-family residential districts with development existing at the time of the adoption of this development code. The specific allowable density for each parcel is shown on the zoning map by a numerical suffix residential density designator RS-12 corresponding to the minimum lot size 12000 The RS district is consistent with and implements the low density residential (LDR) land use designation of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Recreation
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard
Park & open space
Oct 20, 2014 • Final
Building
Replace the heating and air conditioning system.
HVAC
Feb 22, 2013 • Final
Bldhp historical
Work on a reroof.
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
Parking
Parking Information
Has Attached Garage
Garage Spaces: 7
Covered Spaces: 7
Parking Features: Attached, Int Access From Garage, Off Street, RV/Boat Parking, Side Yard Access, Workshop in Garage, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Stall Shower, Tile
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 1999. This data may not match public records. Learn more.