Step inside and be surprised at what this single-story home offers your family! An interior facelift included removal of popcorn ceilings, new designer paint throughout, new baseboards & crown moldings. New carpet in each bedroom. New mirrored closet and 6-paneled doors. Beautiful wood laminate flooring. Kitchen (w/granite slab counters) and both bathrooms recently remodeled. Low maintenance front yard while the backyard is large enough for both a swimming pool and a separate garden/play area. Mature trees provide privacy and there are no rear neighbors. Backs to open space and is conveniently located to 580/680 freeways, shopping and award winning schools.
Single-familyProperty Type
1976Year Built
10,625 sq ftLot Size
$791Est. Price/Sq.Ft.
2 car garageParking
Listed by Laura Lane•DRE #01276517• Lane & Associates
Bought with Diana Korpi•DRE #01127944• RE/MAX Accord
bridgeMLS, Bay East AOR, or Contra Costa AOR #40782705
Jul 14, 2017
Sold
$880,000
$476/sq ft
Jun 3, 2017
Pending
—
May 24, 2017
Listed
$850,000
$460/sq ft
Public Records
Sep 11, 1986
Sold
$165,000
$89/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$11,689 (+2.0%)
$754,378 + $266,932
$1,021,310
2024
$11,458 (+1.6%)
$739,587 + $261,699
$1,001,286
2023
$11,277 (+0.7%)
$725,086 + $256,568
$981,654
2022
$11,196 (+2.0%)
$710,869 + $251,538
$962,407
2021
$10,974 (+0.6%)
$696,931 + $246,606
$943,537
2020
$10,904 (+1.3%)
$683,266 + $241,771
$925,037
2019
$10,762 (+3.8%)
$676,260 + $239,292
$915,552
2018
$10,364 (+164.6%)
$663,000 + $234,600
$897,600
2017
$3,917 (+1.6%)
$119,423 + $186,337
$305,760
2016
$3,857 (+0.9%)
$119,423 + $186,337
$305,760
2015
$3,821 (+1.2%)
$117,082 + $182,684
$299,766
2014
$3,774 (+1.1%)
$113,065 + $176,416
$289,481
2013
$3,734 (+2.7%)
$113,065 + $176,416
$289,481
2012
$3,636 (+1.8%)
$112,555 + $175,619
$288,174
2011
$3,572 (+1.8%)
$110,349 + $172,176
$282,525
2010
$3,510 (+0.5%)
$108,186 + $168,800
$276,986
2009
$3,493 (+4.3%)
$107,378 + $167,539
$274,917
2008
$3,349
$107,634 + $167,938
$275,572
Tax history for 9420 Alcosta Blvd
Year
Property tax
Land + Additions
Assessment*
2025
$11,689 (+2.0%)
$754,378 + $266,932
$1,021,310
2024
$11,458 (+1.6%)
$739,587 + $261,699
$1,001,286
2023
$11,277 (+0.7%)
$725,086 + $256,568
$981,654
2022
$11,196 (+2.0%)
$710,869 + $251,538
$962,407
2021
$10,974 (+0.6%)
$696,931 + $246,606
$943,537
2020
$10,904 (+1.3%)
$683,266 + $241,771
$925,037
2019
$10,762 (+3.8%)
$676,260 + $239,292
$915,552
2018
$10,364 (+164.6%)
$663,000 + $234,600
$897,600
2017
$3,917 (+1.6%)
$119,423 + $186,337
$305,760
2016
$3,857 (+0.9%)
$119,423 + $186,337
$305,760
2015
$3,821 (+1.2%)
$117,082 + $182,684
$299,766
2014
$3,774 (+1.1%)
$113,065 + $176,416
$289,481
2013
$3,734 (+2.7%)
$113,065 + $176,416
$289,481
2012
$3,636 (+1.8%)
$112,555 + $175,619
$288,174
2011
$3,572 (+1.8%)
$110,349 + $172,176
$282,525
2010
$3,510 (+0.5%)
$108,186 + $168,800
$276,986
2009
$3,493 (+4.3%)
$107,378 + $167,539
$274,917
2008
$3,349
$107,634 + $167,938
$275,572
*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
2
Stories
1
Lot width
—
Lot depth
—
Lot size
10,625 Sq. Ft.
Year renovated
1977
Sq. Ft.
1,848
Year built
1976
Style
Single Family Residential
County
Contra Costa County
APN
2107100048
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
Jun 22, 2018 • Final
Photovoltaic - electrical
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
Parking
Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Side Yard Access, Guest, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Other Bathrooms Included Features: Shower Over Tub, Solid Surface, Updated Baths
Primary Bathroom Included Features: Stall Shower, Updated Baths
Interior Features
Interior Features: Family Room, Formal Dining Room, Kitchen/Family Combo, Breakfast Bar, Counter - Solid Surface, Updated Kitchen
Appliances: Dishwasher, Electric Range, Disposal, Microwave, Oven, Self Cleaning Oven, Gas Water Heater
Laundry Features: 220 Volt Outlet, Laundry Room
Street Level Features: 3 Bedrooms, 2 Baths, Laundry Facility, Main Entry
Fireplace Features: Brick, Family Room, Pellet Stove
Basement: Crawl Space
Exterior
Building Information
Construction Materials: Stucco, Frame
Building Area Total: 1,848
Exterior Features
Patio And Porch Features: Patio
Exterior Features: Back Yard, Front Yard, Side Yard, Sprinklers Automatic, Sprinklers Front, Terraced Up
Door Features: Mirrored Closet Door(s)
Fencing: Fenced
Roof: Shingle
Pool Information
Pool Features: In Ground, No Heat, Pool Cover, Solar Cover
Has Private Pool
Property Information
Living Area: 1848
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1976
Lot Information
Other Structures: Shed(s)
Lot Size Square Feet: 10625
Lot Size Area: 0.24
Lot Size Units: Acres
Lot Size Acres: 0.24
Lot Features: Level, Sloped Up
Utilities
Utility Information
Water Source: Sump Pump, Public
Electric: 220 Volts in Kitchen
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air, Natural Gas
Cooling: Central Air
Location
School Information
High School District: San Ramon Valley (925) 552-5500
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: 1977
County: Contra Costa County
APN: 2107100048
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
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
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2017. This data may not match public records. Learn more.