9402 Alcosta Blvd is a 1,848 square foot house on a 10,625 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on April 21, 2005 for $767,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,397,279.
Single-familyProperty Type
1976Year Built
10,625 sq ftLot Size
$756Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,397,279
$630K since sold in April 2005$9,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.7% lower than the average sale price ($1.50M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40069625
Apr 1, 2005
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40067894
Mar 25, 2005
Listing Removed
—
Public Records
Jul 22, 1999
Sold
$355,000
$192/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #11016698
Jun 15, 1999
Listing Removed
—
Public Records
Apr 19, 1991
Sold
$259,000
$140/sq ft
Public Records
Dec 22, 1981
Sold
$127,500
$69/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$13,030 (+3.3%)
$618,473 + $497,383
$1,115,856
2025
$12,616 (+2.0%)
$618,473 + $497,383
$1,115,856
2024
$12,366 (+1.6%)
$606,347 + $487,631
$1,093,978
2023
$12,171 (+0.7%)
$594,458 + $478,070
$1,072,528
2022
$12,081 (+2.0%)
$582,802 + $468,697
$1,051,499
2021
$11,840 (+2.9%)
$571,375 + $459,507
$1,030,882
2020
$11,507 (+4.0%)
$560,172 + $450,498
$1,010,670
2019
$11,067 (+11.7%)
$542,000 + $435,000
$977,000
2018
$9,904 (+2.1%)
$516,568 + $415,432
$932,000
2017
$9,704 (+5.7%)
$467,239 + $375,761
$843,000
2016
$9,182 (+12.8%)
$467,239 + $375,761
$843,000
2015
$8,139 (+17.5%)
$437,309 + $351,691
$789,000
2014
$6,924 (+5.6%)
$300,000 + $275,000
$575,000
2013
$6,554 (+5.3%)
$300,000 + $275,000
$575,000
2012
$6,221 (−4.7%)
$400,000 + $145,000
$545,000
2011
$6,526 (+5.6%)
$300,000 + $220,000
$520,000
2010
$6,179 (−6.5%)
$310,512 + $236,988
$547,500
2009
$6,609 (−14.9%)
$294,916 + $225,084
$520,000
2008
$7,765
$318,736 + $243,264
$562,000
Tax history for 9402 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2026
$13,030 (+3.3%)
$618,473 + $497,383
$1,115,856
2025
$12,616 (+2.0%)
$618,473 + $497,383
$1,115,856
2024
$12,366 (+1.6%)
$606,347 + $487,631
$1,093,978
2023
$12,171 (+0.7%)
$594,458 + $478,070
$1,072,528
2022
$12,081 (+2.0%)
$582,802 + $468,697
$1,051,499
2021
$11,840 (+2.9%)
$571,375 + $459,507
$1,030,882
2020
$11,507 (+4.0%)
$560,172 + $450,498
$1,010,670
2019
$11,067 (+11.7%)
$542,000 + $435,000
$977,000
2018
$9,904 (+2.1%)
$516,568 + $415,432
$932,000
2017
$9,704 (+5.7%)
$467,239 + $375,761
$843,000
2016
$9,182 (+12.8%)
$467,239 + $375,761
$843,000
2015
$8,139 (+17.5%)
$437,309 + $351,691
$789,000
2014
$6,924 (+5.6%)
$300,000 + $275,000
$575,000
2013
$6,554 (+5.3%)
$300,000 + $275,000
$575,000
2012
$6,221 (−4.7%)
$400,000 + $145,000
$545,000
2011
$6,526 (+5.6%)
$300,000 + $220,000
$520,000
2010
$6,179 (−6.5%)
$310,512 + $236,988
$547,500
2009
$6,609 (−14.9%)
$294,916 + $225,084
$520,000
2008
$7,765
$318,736 + $243,264
$562,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
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
Dec 3, 2019 • Final
Photovoltaic - electrical
Electrical
Solar
Dec 2, 2019 • Final
Miscellaneous - re-roof
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
Interior
Room Information
# of Rooms: 9
Exterior
Property Information
Living Sq. Ft: 1,848
Ground Floor Sq. Ft: 1,848
Building Sq. Ft: 2,359
# of Stories: 1
Legal Description: T04650 L0001 B EX MR
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 511
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,625
Legal Lot Number: 1
Acres: 0.2439
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,848
Stories: 1.0
Lot Size: 10,625 square feet
Style: Single Family Residential
Year Built: 1976
Year Renovated: 1985
County: Contra Costa County
APN: 2107100014
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Walt Disney Elementary School
Public K-5 • Assigned • 0.8mi
10/10
Pine Valley Middle School
Public 6-8 • Assigned • 1.0mi
10/10
California High School
Public 9-12 • Assigned • 1.5mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
San Ramon remains competitive, with homes averaging 1 offer and selling in 29 days. Median price is $1.4M (+2.8%), while price per sq. ft. is $677 (-1.2%). Buyers have negotiation opportunities; sellers should price strategically.
San Ramon, Past 3 months,Median price $1.51M, down 4.5% YoY,Homes sold: 169 in July, up 1%,Days on market 20 days,Market Active but more balanced; slight seller advantage,Bottom line: Prices have softened, but homes are still selling relatively...