9591 Alcosta Blvd is a 2,170 square foot house on a 10,032 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on February 06, 2002 for $493,500. Based on Redfin's San Ramon data, we estimate the home's value is $1,532,782.
Single-familyProperty Type
1977Year Built
10,032 sq ftLot Size
$706Est. Price/Sq.Ft.
3 car garageParking
Source:Public Records
Redfin Estimate
$1,532,782
$1.0M since sold in February 2002$20K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8% lower than the average sale price ($1.67M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #11120574
Jan 10, 2002
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #10253472
May 27, 1998
Listing Removed
—
Public Records
May 26, 1998
Sold
$350,000
$161/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #28253472
Apr 14, 1998
Listing Removed
—
Public Records
May 31, 1996
Sold
$292,000
$135/sq ft
Public Records
Oct 22, 1993
Sold
$290,000
$134/sq ft
Public Records
Jul 18, 1989
Sold
$280,000
$129/sq ft
Public Records
Nov 1, 1978
Sold
$103,500
$48/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$9,651 (+3.3%)
$406,838 + $393,642
$800,480
2025
$9,345 (+2.0%)
$406,838 + $393,642
$800,480
2024
$9,161 (+1.6%)
$398,861 + $385,924
$784,785
2023
$9,013 (+0.7%)
$391,041 + $378,357
$769,398
2022
$8,949 (+2.0%)
$383,374 + $370,939
$754,313
2021
$8,773 (+0.7%)
$375,857 + $363,666
$739,523
2020
$8,714 (+1.4%)
$368,488 + $356,536
$725,024
2019
$8,597 (+3.8%)
$364,710 + $352,881
$717,591
2018
$8,280 (+3.7%)
$357,559 + $345,962
$703,521
2017
$7,983 (+1.2%)
$343,676 + $332,529
$676,205
2016
$7,886 (+1.0%)
$343,676 + $332,529
$676,205
2015
$7,810 (+1.2%)
$336,938 + $326,009
$662,947
2014
$7,721 (+1.0%)
$325,376 + $314,823
$640,199
2013
$7,645 (+4.0%)
$325,376 + $314,823
$640,199
2012
$7,348 (+0.5%)
$323,906 + $313,401
$637,307
2011
$7,313 (+1.4%)
$313,331 + $303,169
$616,500
2010
$7,213 (+1.2%)
$311,329 + $301,232
$612,561
2009
$7,125 (+3.6%)
$309,003 + $298,981
$607,984
2008
$6,876
$309,738 + $299,692
$609,430
Tax history for 9591 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2026
$9,651 (+3.3%)
$406,838 + $393,642
$800,480
2025
$9,345 (+2.0%)
$406,838 + $393,642
$800,480
2024
$9,161 (+1.6%)
$398,861 + $385,924
$784,785
2023
$9,013 (+0.7%)
$391,041 + $378,357
$769,398
2022
$8,949 (+2.0%)
$383,374 + $370,939
$754,313
2021
$8,773 (+0.7%)
$375,857 + $363,666
$739,523
2020
$8,714 (+1.4%)
$368,488 + $356,536
$725,024
2019
$8,597 (+3.8%)
$364,710 + $352,881
$717,591
2018
$8,280 (+3.7%)
$357,559 + $345,962
$703,521
2017
$7,983 (+1.2%)
$343,676 + $332,529
$676,205
2016
$7,886 (+1.0%)
$343,676 + $332,529
$676,205
2015
$7,810 (+1.2%)
$336,938 + $326,009
$662,947
2014
$7,721 (+1.0%)
$325,376 + $314,823
$640,199
2013
$7,645 (+4.0%)
$325,376 + $314,823
$640,199
2012
$7,348 (+0.5%)
$323,906 + $313,401
$637,307
2011
$7,313 (+1.4%)
$313,331 + $303,169
$616,500
2010
$7,213 (+1.2%)
$311,329 + $301,232
$612,561
2009
$7,125 (+3.6%)
$309,003 + $298,981
$607,984
2008
$6,876
$309,738 + $299,692
$609,430
*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
Jan 30, 2010 • Final
Building/residential/rp/repair
Work on a solar installation.
Electrical
Solar
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
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Conventional
Construction Type: Frame
Building Construction Quality: Good
Exterior Wall: Stucco
Pool Information
Has Pool
View Information
View: Good
Property Information
Subdivision Name: SUBDIVISION 4440
Living Sq. Ft: 2,170
Ground Floor Sq. Ft: 2,170
Building Sq. Ft: 2,170
# of Stories: 1
Legal Description: T04440 L0010 B EX MR
Parking & Garage Information
# of Parking Spaces: 2
Garage/Parking Sq. Ft: 674
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,032
Legal Lot Number: 10
Acres: 0.2303
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 2,170
Stories: 1.0
Lot Size: 10,032 square feet
Style: Single Family Residential
Year Built: 1977
Year Renovated: 1988
County: Contra Costa County
APN: 2106710011
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 • 0.4mi
10/10
Pine Valley Middle School
Public 6-8 • Assigned • 0.8mi
10/10
California High School
Public 9-12 • Assigned • 1.1mi
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...