Charming 4BD/3BA split-level Contemporary on a large Oasis-like lot w/ pool, views the West, all modern amenities & room to grow! 9666 Alcosta greets visitors with a bright FLR w/ FP, an elegant FDR w/ views, a family rm w/ FP, custom built-ins & sliding doors to a big rear deck, a modern chef's kitchen w/ b-fast room, a large Primary Suite w/ deck access, 2 additional ample BDs & 2nd full BA, all on the home's main level. Downstairs is a private 4th BD, a 3rd full guest BA, a bonus room ready for home office or hobbies, a utility room AND garage w/ bonus basement storage. Lots of updates including Cherry floors, custom-built-ins, modern appliances & fresh paint & carpets run thru-out. A gorgeous 15,000 Sq Ft+ lot w/ pool & spa, no neighbors directly behind AND a raised view-patio at the property's rear, completes this rare offering. Excellent location, steps to top-rated schools, parks, SR Golf Club & just minutes to shopping, dining & easy commute access. Come see the Oasis in San Ramon!
Single-familyProperty Type
1989Year Built
0.36 acresLot Size
$627Est. Price/Sq.Ft.
Listed by Andrew de Vries•DRE #DRE #01368031• Berkshire Hathaway-Franciscan
•415-585-5200 (agent)
•andrew@probateagent.com (agent)
•415-664-9400 (broker)
Bought with Eddie Oberoi•DRE #DRE #01323567• Intero Real Estate Services
*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
3
Baths
3
Stories
1
Lot width
—
Lot depth
—
Lot size
0.36 Acres
Year renovated
1989
Sq. Ft.
3,116
Year built
1989
Style
Single Family Residential
County
Contra Costa County
APN
2107510238
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 10, 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
Jul 13, 2017 • Final
Landscape irrigation
Grading
Oct 3, 2014 • Final
Water heater/softener - plumbing
Plumbing
Water heater
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
Bedrooms Information
# of Bedrooms: 4
Bathroom Information
Count of Bathrooms: 3
# of Full Bathrooms: 3
Interior Features
Has Fireplace(s)
# of Fireplaces Total: 2
Fireplace Features: Family Room, Living Room
Exterior
Exterior Features
Entry Level: 0
Building Information
Living Area: 3116
Living Area Units: Square Feet
Living Area Source: Assessor Agent-Fill
Building Area Total: 3116
Building Area Units: Square Feet
Building Area Source: Assessor Agent-Fill
Year Built: 1989
Year Built Source: Assessor Agent-Fill
Mobile Home Information
Mobile Dim Units: Feet
Property Type
Property Type: Residential
Property SubType: Single Family Residence
Property Information
Property Condition: Updated/Remodeled
Lot Information
Lot Size Sq. Ft.: 15500
Lot Size Acres: 0.3558
Lot Size Area: 15500
Lot Size Units: SqFt
Lot Size Units: Square Feet
Elevation: 0
Elevation Units: Feet
Location
HOA Information
Association Fee: 0
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 3,116
Stories: 1.0
Lot Size: 0.36 acres
Style: Single Family Residential
Year Built: 1989
Year Renovated: 1989
County: Contra Costa County
APN: 2107510238
Home facts updated by county records on Aug 10, 2026
Around this home
Schools
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
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