bridgeMLS, Bay East AOR, or Contra Costa AOR #11017523
Jun 30, 1999
Sold
$389,500
$179/sq ft
Jun 8, 1999
Listing Removed
—
Jun 2, 1999
Listed
$384,500
$176/sq ft
Public Records
Aug 23, 1994
Sold
$294,000
$135/sq ft
Public Records
May 13, 1988
Sold
$240,000
$110/sq ft
Public Records
Aug 8, 1983
Sold
$150,000
$69/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$7,383 (+2.0%)
$330,998 + $291,818
$622,816
2024
$7,237 (+1.7%)
$324,508 + $286,097
$610,605
2023
$7,115 (+0.7%)
$318,146 + $280,488
$598,634
2022
$7,063 (+2.0%)
$311,908 + $274,989
$586,897
2021
$6,925 (+0.7%)
$305,793 + $269,598
$575,391
2020
$6,874 (+1.4%)
$299,798 + $264,312
$564,110
2019
$6,778 (+3.8%)
$296,724 + $261,602
$558,326
2018
$6,527 (+3.8%)
$290,906 + $256,473
$547,379
2017
$6,291 (+1.3%)
$279,610 + $246,515
$526,125
2016
$6,208 (+1.0%)
$279,610 + $246,515
$526,125
2015
$6,149 (+1.2%)
$274,128 + $241,682
$515,810
2014
$6,076 (+1.0%)
$264,722 + $233,389
$498,111
2013
$6,014 (+2.8%)
$264,722 + $233,389
$498,111
2012
$5,853 (+1.8%)
$263,526 + $232,335
$495,861
2011
$5,752 (+1.5%)
$258,359 + $227,780
$486,139
2010
$5,667 (+0.3%)
$253,294 + $223,314
$476,608
2009
$5,653 (+3.8%)
$251,401 + $221,646
$473,047
2008
$5,447
$251,999 + $222,173
$474,172
Tax history for 9465 Alcosta
Year
Property tax
Land + Additions
Assessment*
2025
$7,383 (+2.0%)
$330,998 + $291,818
$622,816
2024
$7,237 (+1.7%)
$324,508 + $286,097
$610,605
2023
$7,115 (+0.7%)
$318,146 + $280,488
$598,634
2022
$7,063 (+2.0%)
$311,908 + $274,989
$586,897
2021
$6,925 (+0.7%)
$305,793 + $269,598
$575,391
2020
$6,874 (+1.4%)
$299,798 + $264,312
$564,110
2019
$6,778 (+3.8%)
$296,724 + $261,602
$558,326
2018
$6,527 (+3.8%)
$290,906 + $256,473
$547,379
2017
$6,291 (+1.3%)
$279,610 + $246,515
$526,125
2016
$6,208 (+1.0%)
$279,610 + $246,515
$526,125
2015
$6,149 (+1.2%)
$274,128 + $241,682
$515,810
2014
$6,076 (+1.0%)
$264,722 + $233,389
$498,111
2013
$6,014 (+2.8%)
$264,722 + $233,389
$498,111
2012
$5,853 (+1.8%)
$263,526 + $232,335
$495,861
2011
$5,752 (+1.5%)
$258,359 + $227,780
$486,139
2010
$5,667 (+0.3%)
$253,294 + $223,314
$476,608
2009
$5,653 (+3.8%)
$251,401 + $221,646
$473,047
2008
$5,447
$251,999 + $222,173
$474,172
*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
3
Stories
2
Lot width
—
Lot depth
—
Lot size
10,450 Sq. Ft.
Year renovated
1972
Sq. Ft.
2,182
Year built
1965
Style
Single Family Residential
County
Contra Costa County
APN
2103630139
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
RS-10
Single-Family Residential Zone
The RS zone is applied to areas of the City appropriate for single-family residential land uses in neighborhoods at a density of three to six units per net acre, subject to appropriate standards. The specific allowable density for each parcel is shown on the Zoning Map by a numerical suffix residential density designator (see Section D2-8). Minimum lot size for new parcels ranges from 3,500 to 12,000 sq ft. Depending upon the applicable residential density designator, the RS zone is consistent with and implements the Single Family Low Density, Single Family Low-Medium Density, and Single Family Medium Density land use classifications of the General Plan.
Permitted uses
Include but are not limited to:
Day care facility
Housing-Single unit
Housing-Senior
Housing-Student
Housing-Other
Aug 6, 2020 • Final
Electrical service - electrical
Electrical
Jun 17, 2017 • Final
Alteration, remodel, repair - building residential
Remodel
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: 2
Covered Spaces: 2
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Stall Shower
Interior Features
Interior Features: Den, Family Room, Formal Dining Room, Storage
Appliances: Dishwasher, Disposal, Free-Standing Range
Fireplace Features: Den, Living Room, Wood Burning
Exterior
Building Information
Construction Materials: Stucco
Building Area Total: 2,182
Builder Name: ALPHA HOMES
Exterior Features
Exterior Features: Back Yard, Dog Run, Front Yard, Side Yard
Roof: Shingle
Mobile Home Information
Model: PENNSYLVANIA
Pool Information
Pool Features: In Ground, Liner
Has Private Pool
Property Information
Living Area: 2182
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1965
Lot Information
Other Structures: Shed(s)
Lot Size Square Feet: 10450
Lot Size Area: 0.23
Lot Size Units: Acres
Lot Size Acres: 0.23
Lot Features: Level, Regular
Zoning: RES
Utilities
Utility Information
Water Source: Public
Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Central Air
Location
School Information
High School District: San Ramon Valley (925) 552-5500
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,182
Stories: 2.0
Lot Size: 10,450 square feet
Style: Single Family Residential
Year Built: 1965
Year Renovated: 1972
County: Contra Costa County
APN: 2103630139
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Walt Disney Elementary School
Public K-5 • Assigned • 0.6mi
10/10
Pine Valley Middle School
Public 6-8 • Assigned • 0.9mi
10/10
California High School
Public 9-12 • Assigned • 1.3mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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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.