Extraordinary neighborhood. K – 12 years of highly rated, neighborhood schools, just a few short blocks from this lovingly cared for home. Safe, lighted sidewalks mean no need for driving, busing or car-pools. The park-like yard is one of the best in the area and neighborhood children play outside in the safe, quiet, children-friendly, double cul-de-sacs. Likewise, public tennis courts, the wonderful, nearly 28 mi long Iron Horse Trail, Athan Downs recreational park, the Aquatic Center and Olympic pool, are all just around the corner. An expanded Pella picture window, custom bookshelves and hearthed fireplace (one of two) greet you on entering. High vaulted ceilings accentuate the recently added additional square footage. A large kitchen bay window brightens the granite counters and newer appliances. Newly remodeled bathrooms. Large sliding glass doors lead out to 3 garden patios, one covered with a relaxing fire-pit. This is the perfect setting for your personal, at home vacation.
Single-familyProperty Type
1976Year Built
7,505 sq ftLot Size
$800Est. Price/Sq.Ft.
2 car garageParking
Listed by Lou Plummer•DRE #00409150• Compass
Bought with Rodger Shaheen•DRE #01164867• Coldwell Banker Realty
bridgeMLS, Bay East AOR, or Contra Costa AOR #40899637
Apr 21, 2020
Sold
$1,030,712
$531/sq ft
Apr 7, 2020
Pending
—
Apr 6, 2020
Pending
—
Mar 18, 2020
Listed
$1,028,500
$530/sq ft
Public Records
Jul 6, 1984
Sold
$160,000
$82/sq ft
Public Records
May 17, 1977
Sold
$70,000
$36/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$13,200 (+2.1%)
$836,637 + $313,124
$1,149,761
2024
$12,928 (+1.6%)
$820,233 + $306,985
$1,127,218
2023
$12,720 (+0.8%)
$804,150 + $300,966
$1,105,116
2022
$12,624 (+2.2%)
$788,383 + $295,065
$1,083,448
2021
$12,352 (+195.7%)
$772,925 + $289,280
$1,062,205
2020
$4,177 (+1.0%)
$757,770 + $283,608
$1,041,378
2019
$4,135 (+3.9%)
$83,563 + $219,221
$302,784
2018
$3,981 (+3.9%)
$81,925 + $214,923
$296,848
2017
$3,830 (+1.9%)
$78,745 + $206,578
$285,323
2016
$3,760 (+1.8%)
$78,745 + $206,578
$285,323
2015
$3,694 (+1.8%)
$77,201 + $202,528
$279,729
2014
$3,627 (+1.8%)
$74,553 + $195,579
$270,132
2013
$3,564 (+3.4%)
$74,553 + $195,579
$270,132
2012
$3,446 (+2.4%)
$74,217 + $194,696
$268,913
2011
$3,366 (+1.8%)
$72,762 + $190,879
$263,641
2010
$3,307
$71,336 + $187,137
$258,473
2009
$3,309 (+4.3%)
$70,803 + $185,739
$256,542
2008
$3,173
$70,972 + $186,181
$257,153
Tax history for 9951 Windsor Way
Year
Property tax
Land + Additions
Assessment*
2025
$13,200 (+2.1%)
$836,637 + $313,124
$1,149,761
2024
$12,928 (+1.6%)
$820,233 + $306,985
$1,127,218
2023
$12,720 (+0.8%)
$804,150 + $300,966
$1,105,116
2022
$12,624 (+2.2%)
$788,383 + $295,065
$1,083,448
2021
$12,352 (+195.7%)
$772,925 + $289,280
$1,062,205
2020
$4,177 (+1.0%)
$757,770 + $283,608
$1,041,378
2019
$4,135 (+3.9%)
$83,563 + $219,221
$302,784
2018
$3,981 (+3.9%)
$81,925 + $214,923
$296,848
2017
$3,830 (+1.9%)
$78,745 + $206,578
$285,323
2016
$3,760 (+1.8%)
$78,745 + $206,578
$285,323
2015
$3,694 (+1.8%)
$77,201 + $202,528
$279,729
2014
$3,627 (+1.8%)
$74,553 + $195,579
$270,132
2013
$3,564 (+3.4%)
$74,553 + $195,579
$270,132
2012
$3,446 (+2.4%)
$74,217 + $194,696
$268,913
2011
$3,366 (+1.8%)
$72,762 + $190,879
$263,641
2010
$3,307
$71,336 + $187,137
$258,473
2009
$3,309 (+4.3%)
$70,803 + $185,739
$256,542
2008
$3,173
$70,972 + $186,181
$257,153
*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
2
Lot width
—
Lot depth
—
Lot size
7,505 Sq. Ft.
Year renovated
1990
Sq. Ft.
1,941
Year built
1976
Style
Single Family Residential
County
Contra Costa County
APN
2122810027
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
RS-7
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
Aug 2, 2023 • Final
Miscellaneous - re-roof
Roofing
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, Garage Door Opener
Interior
Virtual Tour
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Solid Surface, Updated Baths
Primary Bathroom Included Features: Solid Surface, Stall Shower, Updated Baths
Fireplace Features: Dining Room, Family Room, Raised Hearth
Exterior
Building Information
Construction Materials: Stucco, Brick Veneer, Frame
Building Area Total: 1,941
Foundation Details: Slab
Exterior Features
Patio And Porch Features: Patio, Covered
Exterior Features: Back Yard, Dog Run, Front Yard, Side Yard, Sprinklers Automatic, Storage
Fencing: Fenced
Roof: Shingle
Property Information
Living Area: 1941
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1976
Lot Information
Lot Size Square Feet: 7505
Lot Size Area: 0.17
Lot Size Units: Acres
Lot Size Acres: 0.17
Lot Features: Level, Premium Lot
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Ceiling Fan(s), Central Air
Location
School Information
High School District: San Ramon Valley (925) 552-5500
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 1,941
Stories: 2.0
Lot Size: 7,505 square feet
Style: Single Family Residential
Year Built: 1976
Year Renovated: 1990
County: Contra Costa County
APN: 2122810027
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Montevideo Elementary School
Public K-5 • Assigned • 0.4mi
9/10
Pine Valley Middle School
Public 6-8 • Assigned • 1.0mi
10/10
California High School
Public 9-12 • Assigned • 0.3mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
During the last 30 days, San Ramon's market has remained balanced. Buyers enjoy more choices and negotiating opportunities, while seller continuing seeing strong demand for turnkey homes with modern upgrades, functional layout and desirable...
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 2020. This data may not match public records. Learn more.