12227 Alcosta Blvd is a 3,261 square foot house on a 7,579 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's San Ramon data, we estimate the home's value is $1,970,938.
Single-familyProperty Type
2002Year Built
7,579 sq ftLot Size
$604Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,970,938
$80K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8.3% lower than the average sale price ($2.15M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$13,406 (+2.1%)
$494,886 + $667,141
$1,162,027
2024
$13,131 (+1.6%)
$485,183 + $654,060
$1,139,243
2023
$12,922 (+0.7%)
$475,670 + $641,236
$1,116,906
2022
$12,826 (+2.2%)
$466,344 + $628,663
$1,095,007
2021
$12,551 (+1.0%)
$457,200 + $616,337
$1,073,537
2020
$12,429 (+1.1%)
$448,236 + $604,252
$1,052,488
2019
$12,292 (+3.9%)
$443,640 + $598,057
$1,041,697
2018
$11,835 (+3.8%)
$434,942 + $586,331
$1,021,273
2017
$11,405 (+1.2%)
$418,053 + $563,564
$981,617
2016
$11,266 (+1.3%)
$418,053 + $563,564
$981,617
2015
$11,125 (+1.3%)
$409,856 + $552,514
$962,370
2014
$10,977 (+20.3%)
$395,793 + $533,555
$929,348
2013
$9,122 (+1.6%)
$395,793 + $533,555
$929,348
2012
$8,975
$327,078 + $440,922
$768,000
2011
$8,968 (−12.1%)
$325,587 + $438,913
$764,500
2010
$10,200 (+0.6%)
$325,587 + $438,913
$764,500
2009
$10,135 (+3.4%)
$375,876 + $506,705
$882,581
2008
$9,802
$376,769 + $507,909
$884,678
Tax history for 12227 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2025
$13,406 (+2.1%)
$494,886 + $667,141
$1,162,027
2024
$13,131 (+1.6%)
$485,183 + $654,060
$1,139,243
2023
$12,922 (+0.7%)
$475,670 + $641,236
$1,116,906
2022
$12,826 (+2.2%)
$466,344 + $628,663
$1,095,007
2021
$12,551 (+1.0%)
$457,200 + $616,337
$1,073,537
2020
$12,429 (+1.1%)
$448,236 + $604,252
$1,052,488
2019
$12,292 (+3.9%)
$443,640 + $598,057
$1,041,697
2018
$11,835 (+3.8%)
$434,942 + $586,331
$1,021,273
2017
$11,405 (+1.2%)
$418,053 + $563,564
$981,617
2016
$11,266 (+1.3%)
$418,053 + $563,564
$981,617
2015
$11,125 (+1.3%)
$409,856 + $552,514
$962,370
2014
$10,977 (+20.3%)
$395,793 + $533,555
$929,348
2013
$9,122 (+1.6%)
$395,793 + $533,555
$929,348
2012
$8,975
$327,078 + $440,922
$768,000
2011
$8,968 (−12.1%)
$325,587 + $438,913
$764,500
2010
$10,200 (+0.6%)
$325,587 + $438,913
$764,500
2009
$10,135 (+3.4%)
$375,876 + $506,705
$882,581
2008
$9,802
$376,769 + $507,909
$884,678
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
RS-6
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
Interior
Room Information
# of Rooms: 11
Exterior
Property Information
Subdivision Name: TERRAZZO
Living Sq. Ft: 3,261
Ground Floor Sq. Ft: 1,637
Building Sq. Ft: 3,261
# of Stories: 2
Legal Description: T8415 L2
Parking & Garage Information
Garage/Parking Sq. Ft: 712
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,579
Legal Lot Number: 2
Acres: 0.174
County Use Description: SINGLE FAMILY DETACHED WITH MA
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,261
Stories: 2.0
Lot Size: 7,579 square feet
Style: Single Family Residential
Year Built: 2002
Year Renovated: 2002
County: Contra Costa County
APN: 2124300548
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Montevideo Elementary School
Public K-5 • Assigned • 0.6mi
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
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