bridgeMLS, Bay East AOR, or Contra Costa AOR #40889964
Dec 23, 2019
Listing Removed
—
Dec 2, 2019
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #11176261
May 28, 2019
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11178249
May 28, 2019
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11131803
Feb 17, 2015
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11145762
Feb 17, 2015
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11184458
May 29, 2003
Sold
$553,000
$250/sq ft
May 2, 2003
Listing Removed
—
Apr 23, 2003
Listed
$559,000
$253/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #11131742
Mar 13, 2002
Listing Removed
—
Public Records
May 13, 1977
Sold
$65,500
$30/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$9,668 (+2.1%)
$487,500 + $329,426
$816,926
2024
$9,465 (+1.7%)
$477,942 + $322,967
$800,909
2023
$9,307 (+0.8%)
$468,571 + $316,635
$785,206
2022
$9,236 (+2.2%)
$459,384 + $310,427
$769,811
2021
$9,034 (+1.2%)
$450,377 + $304,341
$754,718
2020
$8,929 (+1.1%)
$441,547 + $298,374
$739,921
2019
$8,831 (+3.9%)
$437,020 + $295,315
$732,335
2018
$8,502 (+3.8%)
$428,451 + $289,525
$717,976
2017
$8,190 (+1.4%)
$411,814 + $278,284
$690,098
2016
$8,079 (+1.4%)
$411,814 + $278,284
$690,098
2015
$7,969 (+1.5%)
$403,740 + $272,828
$676,568
2014
$7,855 (+4.2%)
$389,887 + $263,466
$653,353
2013
$7,541 (+6.5%)
$389,887 + $263,466
$653,353
2012
$7,081 (−0.5%)
$376,548 + $254,452
$631,000
2011
$7,117 (+0.7%)
$356,556 + $240,944
$597,500
2010
$7,069 (+0.1%)
$359,242 + $242,758
$602,000
2009
$7,060 (+0.5%)
$359,242 + $242,758
$602,000
2008
$7,027
$359,241 + $242,759
$602,000
Tax history for 10121 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2025
$9,668 (+2.1%)
$487,500 + $329,426
$816,926
2024
$9,465 (+1.7%)
$477,942 + $322,967
$800,909
2023
$9,307 (+0.8%)
$468,571 + $316,635
$785,206
2022
$9,236 (+2.2%)
$459,384 + $310,427
$769,811
2021
$9,034 (+1.2%)
$450,377 + $304,341
$754,718
2020
$8,929 (+1.1%)
$441,547 + $298,374
$739,921
2019
$8,831 (+3.9%)
$437,020 + $295,315
$732,335
2018
$8,502 (+3.8%)
$428,451 + $289,525
$717,976
2017
$8,190 (+1.4%)
$411,814 + $278,284
$690,098
2016
$8,079 (+1.4%)
$411,814 + $278,284
$690,098
2015
$7,969 (+1.5%)
$403,740 + $272,828
$676,568
2014
$7,855 (+4.2%)
$389,887 + $263,466
$653,353
2013
$7,541 (+6.5%)
$389,887 + $263,466
$653,353
2012
$7,081 (−0.5%)
$376,548 + $254,452
$631,000
2011
$7,117 (+0.7%)
$356,556 + $240,944
$597,500
2010
$7,069 (+0.1%)
$359,242 + $242,758
$602,000
2009
$7,060 (+0.5%)
$359,242 + $242,758
$602,000
2008
$7,027
$359,241 + $242,759
$602,000
*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
Beds
4
Baths
3
Stories
2
Lot width
—
Lot depth
—
Lot size
8,320 Sq. Ft.
Year renovated
1978
Sq. Ft.
2,209
Year built
1976
Style
Single Family Residential
County
Contra Costa County
APN
2123160398
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
RS-7
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
Property details
Parking
Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Garage, Int Access From 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
Interior Features
Interior Features: Family Room, Formal Dining Room, Tile Counters
Appliances: Dishwasher, Electric Range, Disposal, Plumbed For Ice Maker, Microwave, Range
Exterior Features: Back Yard, Front Yard, Side Yard
Pool Information
Pool Features: Possible Pool Site
Property Information
Living Area: 2209
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1976
Lot Information
Lot Size Square Feet: 8320
Lot Size Area: 0.19
Lot Size Units: Acres
Lot Size Acres: 0.19
Lot Features: Regular
Zoning: R-
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
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.: 2,209
Stories: 2.0
Lot Size: 8,320 square feet
Style: Single Family Residential
Year Built: 1976
Year Renovated: 1978
County: Contra Costa County
APN: 2123160398
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Montevideo Elementary School
Public K-5 • Assigned • 0.7mi
9/10
Pine Valley Middle School
Public 6-8 • Assigned • 1.0mi
10/10
California High School
Public 9-12 • Assigned • 0.6mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2003. This data may not match public records. Learn more.