9437 Alcosta Blvd is a 1,498 square foot house on a 8,800 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on June 25, 2015 for $665,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,220,350.
Single-familyProperty Type
1965Year Built
8,800 sq ftLot Size
$815Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,220,350
$555K since sold in June 2015$6,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.3% higher than the average sale price ($1.20M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40474937
Nov 18, 2010
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2026
$9,736 (+3.3%)
$674,232 + $140,970
$815,202
2025
$9,425 (+2.0%)
$674,232 + $140,970
$815,202
2024
$9,238 (+1.7%)
$661,012 + $138,206
$799,218
2023
$9,088 (+0.7%)
$648,051 + $135,497
$783,548
2022
$9,021 (+2.0%)
$635,345 + $132,841
$768,186
2021
$8,842 (+0.7%)
$622,888 + $130,237
$753,125
2020
$8,783 (+1.4%)
$610,675 + $127,684
$738,359
2019
$8,663 (+3.9%)
$604,414 + $126,375
$730,789
2018
$8,342 (+3.7%)
$592,563 + $123,898
$716,461
2017
$8,041 (+1.0%)
$569,554 + $119,088
$688,642
2016
$7,958 (+202.1%)
$569,554 + $119,088
$688,642
2015
$2,634 (+1.3%)
$558,387 + $116,753
$675,140
2014
$2,601 (+1.1%)
$105,218 + $70,938
$176,156
2013
$2,571 (+2.5%)
$105,218 + $70,938
$176,156
2012
$2,508 (+85.2%)
$104,743 + $70,618
$175,361
2011
$1,354 (+9.3%)
$102,690 + $69,234
$171,924
2010
$1,239 (+1.7%)
$16,693 + $50,203
$66,896
2009
$1,219 (+6.8%)
$16,569 + $49,828
$66,397
2008
$1,141
$16,609 + $49,947
$66,556
Tax history for 9437 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2026
$9,736 (+3.3%)
$674,232 + $140,970
$815,202
2025
$9,425 (+2.0%)
$674,232 + $140,970
$815,202
2024
$9,238 (+1.7%)
$661,012 + $138,206
$799,218
2023
$9,088 (+0.7%)
$648,051 + $135,497
$783,548
2022
$9,021 (+2.0%)
$635,345 + $132,841
$768,186
2021
$8,842 (+0.7%)
$622,888 + $130,237
$753,125
2020
$8,783 (+1.4%)
$610,675 + $127,684
$738,359
2019
$8,663 (+3.9%)
$604,414 + $126,375
$730,789
2018
$8,342 (+3.7%)
$592,563 + $123,898
$716,461
2017
$8,041 (+1.0%)
$569,554 + $119,088
$688,642
2016
$7,958 (+202.1%)
$569,554 + $119,088
$688,642
2015
$2,634 (+1.3%)
$558,387 + $116,753
$675,140
2014
$2,601 (+1.1%)
$105,218 + $70,938
$176,156
2013
$2,571 (+2.5%)
$105,218 + $70,938
$176,156
2012
$2,508 (+85.2%)
$104,743 + $70,618
$175,361
2011
$1,354 (+9.3%)
$102,690 + $69,234
$171,924
2010
$1,239 (+1.7%)
$16,693 + $50,203
$66,896
2009
$1,219 (+6.8%)
$16,569 + $49,828
$66,397
2008
$1,141
$16,609 + $49,947
$66,556
*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
Jul 13, 2018 • Final
Alteration, remodel, repair - building residential
Remodel
May 11, 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
Interior
Room Information
# of Rooms: 8
Exterior
Property Information
Living Sq. Ft: 1,498
Ground Floor Sq. Ft: 1,498
Building Sq. Ft: 1,498
# of Stories: 1
Legal Description: TRACT 3008 LOT 54 EX MR
Parking & Garage Information
Garage/Parking Sq. Ft: 484
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,800
Legal Lot Number: 54
Acres: 0.202
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,498
Stories: 1.0
Lot Size: 8,800 square feet
Style: Single Family Residential
Year Built: 1965
Year Renovated: 1990
County: Contra Costa County
APN: 2103630089
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 • 0.7mi
10/10
Pine Valley Middle School
Public 6-8 • Assigned • 1.0mi
10/10
California High School
Public 9-12 • Assigned • 1.4mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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...