Open House Saturday, March 10, 2018, 1- 4 PM and Sunday, March 11, 2018, from 1 - 4 PM. Tri Level, Shapell, home on 10, 000 Sq Ft Lot. Freshly painted exterior and interior. Front courtyard, Living, Dining and Family Rooms. Laminate floors in entry and Family Room; Brick Fireplace in Family Room. 1 Bedroom and Full Bath on Lower Lever. Large master bedroom with walk-in closet & organizer, ceiling fan, balcony & arbor; Jack and Jill bedrooms. 1 Bedroom with sitting area, great for study. Eat in kitchen with Corian counter tops and lots of cabinet space. Whole house Fan; Great curb appeal; Large park-like real yard with multi-level deck. 3 car attached garage with lots of storage space. Walk to shopping, parks, and award winning San Ramon Valley Schools. Conveniently located to public transportation and 680 freeway.
Single-familyProperty Type
1978Year Built
10,000 sq ftLot Size
$729Est. Price/Sq.Ft.
3 car garageParking
Listed by Lucille Evans•DRE #01263058• RE/MAX Accord
Bought with Chin Fong•DRE #01425114• Cornerstone Realty and Mortgage
bridgeMLS, Bay East AOR, or Contra Costa AOR #11096626
May 28, 2019
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #21022279
Mar 16, 2018
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40812506
Apr 12, 2018
Sold
$1,200,000
$490/sq ft
Mar 14, 2018
Pending
—
Mar 3, 2018
Listed
$1,175,000
$480/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #11099878
Oct 18, 2010
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40357902
Oct 6, 2008
Listing Removed
—
Jul 23, 2008
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #40351844
Jul 23, 2008
Listing Removed
—
Jun 25, 2008
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #40347047
Jun 25, 2008
Listing Removed
—
Jun 4, 2008
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #40339432
Jun 5, 2008
Listing Removed
—
Apr 30, 2008
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #40326939
Apr 30, 2008
Listing Removed
—
Feb 29, 2008
Listed
*
Public Records
Sep 9, 1994
Sold
$290,000
$118/sq ft
Public Records
Aug 28, 1985
Sold
$200,000
$82/sq ft
Public Records
Sep 1, 1978
Sold
$116,000
$47/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$15,855 (+2.1%)
$870,436 + $522,260
$1,392,696
2024
$15,531 (+1.6%)
$853,369 + $512,020
$1,365,389
2023
$15,287 (+0.7%)
$836,637 + $501,981
$1,338,618
2022
$15,174 (+2.2%)
$820,233 + $492,139
$1,312,372
2021
$14,850 (+0.9%)
$804,150 + $482,490
$1,286,640
2020
$14,717 (+1.1%)
$788,383 + $473,030
$1,261,413
2019
$14,553 (+165.5%)
$780,300 + $468,180
$1,248,480
2018
$5,482 (+3.9%)
$765,000 + $459,000
$1,224,000
2017
$5,277 (+1.6%)
$238,794 + $180,902
$419,696
2016
$5,193 (+1.6%)
$238,794 + $180,902
$419,696
2015
$5,113 (+1.7%)
$234,112 + $177,355
$411,467
2014
$5,030 (+1.5%)
$226,079 + $171,270
$397,349
2013
$4,955 (+3.3%)
$226,079 + $171,270
$397,349
2012
$4,798 (+2.2%)
$225,058 + $170,496
$395,554
2011
$4,695 (+1.6%)
$220,646 + $167,153
$387,799
2010
$4,622
$216,320 + $163,876
$380,196
2009
$4,626 (+3.9%)
$214,704 + $162,652
$377,356
2008
$4,453
$215,215 + $163,039
$378,254
Tax history for 12237 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2025
$15,855 (+2.1%)
$870,436 + $522,260
$1,392,696
2024
$15,531 (+1.6%)
$853,369 + $512,020
$1,365,389
2023
$15,287 (+0.7%)
$836,637 + $501,981
$1,338,618
2022
$15,174 (+2.2%)
$820,233 + $492,139
$1,312,372
2021
$14,850 (+0.9%)
$804,150 + $482,490
$1,286,640
2020
$14,717 (+1.1%)
$788,383 + $473,030
$1,261,413
2019
$14,553 (+165.5%)
$780,300 + $468,180
$1,248,480
2018
$5,482 (+3.9%)
$765,000 + $459,000
$1,224,000
2017
$5,277 (+1.6%)
$238,794 + $180,902
$419,696
2016
$5,193 (+1.6%)
$238,794 + $180,902
$419,696
2015
$5,113 (+1.7%)
$234,112 + $177,355
$411,467
2014
$5,030 (+1.5%)
$226,079 + $171,270
$397,349
2013
$4,955 (+3.3%)
$226,079 + $171,270
$397,349
2012
$4,798 (+2.2%)
$225,058 + $170,496
$395,554
2011
$4,695 (+1.6%)
$220,646 + $167,153
$387,799
2010
$4,622
$216,320 + $163,876
$380,196
2009
$4,626 (+3.9%)
$214,704 + $162,652
$377,356
2008
$4,453
$215,215 + $163,039
$378,254
*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
10,000 Sq. Ft.
Year renovated
1985
Sq. Ft.
2,448
Year built
1978
Style
Single Family Residential
County
Contra Costa County
APN
2123510014
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
Nov 7, 2018 • 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
Has Attached Garage
Garage Spaces: 3
Covered Spaces: 3
Parking Features: Attached
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Interior Features
Interior Features: No Additional Rooms
Appliances: Gas Range, Microwave
Laundry Features: Hookups Only, Laundry Room
Street Level Features: 1 Bath, Laundry Facility
Fireplaces Total: 1
Has Fireplace
Flooring: Laminate, Carpet
Room Information
Kitchen Features: Gas Range/Cooktop,Microwave
Rooms Total: 10
Fireplace Features: Brick, Family Room
Exterior
Building Information
Construction Materials: Stucco
Building Area Total: 2,448
Builder Name: Shapell
Exterior Features
Patio And Porch Features: Deck
Exterior Features: Back Yard
Property Information
Living Area: 2448
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1978
Lot Information
Lot Size Square Feet: 10000
Lot Size Area: 0.23
Lot Size Units: Acres
Lot Size Acres: 0.23
Lot Features: Level
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Gravity
Cooling: Ceiling Fan(s), Central Air
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,448
Stories: 2.0
Lot Size: 10,000 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1985
County: Contra Costa County
APN: 2123510014
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Montevideo Elementary School
Public K-5 • Assigned • 0.5mi
9/10
Iron Horse Middle School
Public 6-8 • Assigned • 1.5mi
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 2018. This data may not match public records. Learn more.