bridgeMLS, Bay East AOR, or Contra Costa AOR #10234619
Sep 16, 1997
Listing Removed
—
Jul 25, 1997
Sold
$320,000
$116/sq ft
Apr 8, 1997
Listed
$339,000
$123/sq ft
CUSTOM BEAUTY W/EUROPEAN FLAIR. DWNSTAIRS IN-LAW/AU-PAIR FULL APARTMENT W/SEP. ENTRY. PAVED SIDEYARD TO DETACHED WORKSHOP/GARAGE.
bridgeMLS, Bay East AOR, or Contra Costa AOR #27234619
Sep 8, 1997
Sold
$320,000
$116/sq ft
Jul 25, 1997
Listing Removed
—
Apr 8, 1997
Listed
$339,000
$123/sq ft
Public Records
Jul 3, 1984
Sold
$61,500
$22/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$7,280 (+2.0%)
$188,914 + $424,182
$613,096
2024
$7,135 (+1.7%)
$185,210 + $415,865
$601,075
2023
$7,016 (+0.7%)
$181,579 + $407,711
$589,290
2022
$6,964 (+2.0%)
$178,019 + $399,717
$577,736
2021
$6,828 (+0.7%)
$174,529 + $391,880
$566,409
2020
$6,778 (+1.4%)
$171,107 + $384,197
$555,304
2019
$6,683 (+3.8%)
$169,353 + $380,258
$549,611
2018
$6,435 (+3.8%)
$166,033 + $372,802
$538,835
2017
$6,202 (+1.3%)
$159,587 + $358,327
$517,914
2016
$6,121 (+1.0%)
$159,587 + $358,327
$517,914
2015
$6,062 (+17.0%)
$156,458 + $351,301
$507,759
2014
$5,179 (+1.0%)
$151,090 + $265,716
$416,806
2013
$5,125 (+2.7%)
$151,090 + $265,716
$416,806
2012
$4,989 (+1.8%)
$150,408 + $264,516
$414,924
2011
$4,902 (+1.6%)
$147,459 + $259,330
$406,789
2010
$4,827 (+0.3%)
$144,568 + $254,246
$398,814
2009
$4,811 (+3.9%)
$143,488 + $252,346
$395,834
2008
$4,629
$143,829 + $252,946
$396,775
Tax history for 9586 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2025
$7,280 (+2.0%)
$188,914 + $424,182
$613,096
2024
$7,135 (+1.7%)
$185,210 + $415,865
$601,075
2023
$7,016 (+0.7%)
$181,579 + $407,711
$589,290
2022
$6,964 (+2.0%)
$178,019 + $399,717
$577,736
2021
$6,828 (+0.7%)
$174,529 + $391,880
$566,409
2020
$6,778 (+1.4%)
$171,107 + $384,197
$555,304
2019
$6,683 (+3.8%)
$169,353 + $380,258
$549,611
2018
$6,435 (+3.8%)
$166,033 + $372,802
$538,835
2017
$6,202 (+1.3%)
$159,587 + $358,327
$517,914
2016
$6,121 (+1.0%)
$159,587 + $358,327
$517,914
2015
$6,062 (+17.0%)
$156,458 + $351,301
$507,759
2014
$5,179 (+1.0%)
$151,090 + $265,716
$416,806
2013
$5,125 (+2.7%)
$151,090 + $265,716
$416,806
2012
$4,989 (+1.8%)
$150,408 + $264,516
$414,924
2011
$4,902 (+1.6%)
$147,459 + $259,330
$406,789
2010
$4,827 (+0.3%)
$144,568 + $254,246
$398,814
2009
$4,811 (+3.9%)
$143,488 + $252,346
$395,834
2008
$4,629
$143,829 + $252,946
$396,775
*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
1
Lot width
—
Lot depth
—
Lot size
0.35 Acres
Year renovated
1995
Sq. Ft.
2,776
Year built
1985
Style
Single Family Residential
County
Contra Costa County
APN
2107510170
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
Apr 27, 2015 • Final
Addition - building residential
Addition
Dec 2, 2014 • Final
Addition - building residential
Addition
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: 5
Covered Spaces: 5
Parking Features: Attached, Detached, Int Access From Garage, RV/Boat Parking, Side Yard Access
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Interior Features
Interior Features: Au Pair, Family Room, Formal Dining Room, In-Law Floorplan, Workshop, Eat-in Kitchen
Appliances: Dishwasher, Electric Range, Disposal, Range
Street Level Features: 1 Bedroom, 1 Bath
Window Features: Double Pane Windows
Fireplaces Total: 3
Has Fireplace
Flooring: Hardwood, Carpet, Wood
Room Information
Kitchen Features: Dishwasher,Eat In Kitchen,Electric Range/Cooktop,Garbage Disposal,Range/Oven Built-in
Rooms Total: 10
Fireplace Features: Brick, Family Room, Raised Hearth
Exterior
Building Information
Construction Materials: Wood Siding
Building Area Total: 2,752
Builder Name: CUSTOM
Exterior Features
Roof: Shingle
Property Information
Living Area: 2752
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1986
Lot Information
Other Structures: Shed(s)
Lot Size Square Feet: 15400
Lot Size Area: 0.35
Lot Size Units: Acres
Lot Size Acres: 0.35
Zoning: R-10
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Central Air
Location
School Information
High School District: San Ramon Valley (925) 552-5500
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,776
Stories: 1.0
Lot Size: 0.35 acres
Style: Single Family Residential
Year Built: 1985
Year Renovated: 1995
County: Contra Costa County
APN: 2107510170
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Walt Disney Elementary School
Public K-5 • Assigned • 0.5mi
10/10
Pine Valley Middle School
Public 6-8 • Assigned • 0.9mi
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...
San Ramon is best known for its seamless mix of outdoor recreation and modern conveniences. City Center Bishop Ranch is a major hub for dining, boutique shopping, and weekend events, while the Iron Horse Trail runs right through town, making it super...
San Ramon properties move fast, going pending in just 14 days. With fierce competition at the $1.6M median price, multiple offers and waived contingencies are the norm. Buyers must act decisively and submit their strongest offer immediately to win.
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 1997. This data may not match public records. Learn more.