Fabulous 1 Story Old Ranch Estates -High End Remodel- Absolutely Beautiful throughout! Very Open Floorplan w/ 4 Bdrm + Office (can be 5th Bdrm) Spacious backyard w/ Diablo views & Koi Pond. Hardwd Flrs, Shutters. Great Kitchen- Slab Granite, SS Appl, Gas Range, Dbl Oven, 20x20 Tile Flrs -MUST SEE
Single-familyProperty Type
1996Year Built
0.4 acresLot Size
$809Est. Price/Sq.Ft.
3 car garageParking
Listed by Carolyn Davidson•DRE #01362382• Compass
Bought with A.j. Cohen•DRE #01484144• Alain Pinel Realtors
bridgeMLS, Bay East AOR, or Contra Costa AOR #40437202
Jan 7, 2010
Sold
$1,062,500
$347/sq ft
Nov 25, 2009
Pending
—
Nov 4, 2009
Listed
$1,149,000
$376/sq ft
Public Records
Mar 28, 1997
Sold
$520,500
$170/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #10224457
Mar 28, 1997
Listing Removed
—
Feb 18, 1997
Sold
$520,490
$170/sq ft
Sep 9, 1996
Listed
$520,490
$170/sq ft
ELEGANT RAISD ENTRY-STUNNING 1 STORY HOME ENORMUS FMLY RM AND ADJACENT GOURMET KITCHE EZ ACCESS TO REAR YRD-LUXURIOUS MSTR SUITE
bridgeMLS, Bay East AOR, or Contra Costa AOR #26224457
Mar 28, 1997
Sold
$520,490
$170/sq ft
Feb 18, 1997
Listing Removed
—
Sep 9, 1996
Listed
$520,490
$170/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$16,077 (+2.2%)
$789,978 + $608,938
$1,398,916
2024
$15,737 (+1.5%)
$774,489 + $596,999
$1,371,488
2023
$15,499 (+1.0%)
$759,303 + $585,294
$1,344,597
2022
$15,340 (+1.9%)
$744,415 + $573,818
$1,318,233
2021
$15,058 (+0.4%)
$729,819 + $562,567
$1,292,386
2020
$14,999 (+1.1%)
$715,509 + $551,537
$1,267,046
2019
$14,843 (+3.7%)
$708,173 + $545,882
$1,254,055
2018
$14,307 (+3.6%)
$694,288 + $535,179
$1,229,467
2017
$13,808 (+1.1%)
$667,329 + $514,399
$1,181,728
2016
$13,660 (+1.0%)
$667,329 + $514,399
$1,181,728
2015
$13,529 (+1.1%)
$654,245 + $504,313
$1,158,558
2014
$13,381 (+18.9%)
$631,795 + $487,008
$1,118,803
2013
$11,250 (+5.9%)
$631,795 + $487,008
$1,118,803
2012
$10,624 (−3.8%)
$525,742 + $405,258
$931,000
2011
$11,045 (+37.3%)
$498,353 + $384,147
$882,500
2010
$8,046 (+0.1%)
$519,247 + $400,253
$919,500
2009
$8,035 (+3.4%)
$274,427 + $382,181
$656,608
2008
$7,771
$275,079 + $383,089
$658,168
Tax history for 1921 Knollcrest Ct
Year
Property tax
Land + Additions
Assessment*
2025
$16,077 (+2.2%)
$789,978 + $608,938
$1,398,916
2024
$15,737 (+1.5%)
$774,489 + $596,999
$1,371,488
2023
$15,499 (+1.0%)
$759,303 + $585,294
$1,344,597
2022
$15,340 (+1.9%)
$744,415 + $573,818
$1,318,233
2021
$15,058 (+0.4%)
$729,819 + $562,567
$1,292,386
2020
$14,999 (+1.1%)
$715,509 + $551,537
$1,267,046
2019
$14,843 (+3.7%)
$708,173 + $545,882
$1,254,055
2018
$14,307 (+3.6%)
$694,288 + $535,179
$1,229,467
2017
$13,808 (+1.1%)
$667,329 + $514,399
$1,181,728
2016
$13,660 (+1.0%)
$667,329 + $514,399
$1,181,728
2015
$13,529 (+1.1%)
$654,245 + $504,313
$1,158,558
2014
$13,381 (+18.9%)
$631,795 + $487,008
$1,118,803
2013
$11,250 (+5.9%)
$631,795 + $487,008
$1,118,803
2012
$10,624 (−3.8%)
$525,742 + $405,258
$931,000
2011
$11,045 (+37.3%)
$498,353 + $384,147
$882,500
2010
$8,046 (+0.1%)
$519,247 + $400,253
$919,500
2009
$8,035 (+3.4%)
$274,427 + $382,181
$656,608
2008
$7,771
$275,079 + $383,089
$658,168
*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
5
Baths
3
Stories
1
Lot width
—
Lot depth
—
Lot size
0.4 Acres
Year renovated
1997
Sq. Ft.
3,058
Year built
1996
Style
Single Family Residential
County
Contra Costa County
APN
2107900330
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
RS-10
DVSP
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.
Zone overlays
Dougherty Valley Specific Plan
Permitted uses
Include but are not limited to:
Day care facility
Housing-Single unit
Housing-Senior
Housing-Student
Housing-Other
Oct 13, 2021 • Final
Photovoltaic - electrical
Electrical
Solar
Sep 27, 2021 • Final
Furnace a/c - mechanical (residential)
HVAC
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: 3
Covered Spaces: 3
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, Tile, Tub, Updated Baths
Primary Bathroom Included Features: Skylight, Solid Surface, Stall Shower, Tile, Tub with Jets, Updated Baths
Interior Features
Interior Features: Den, Dining Area, Family Room, Formal Dining Room, Kitchen/Family Combo, Office, Study, Breakfast Bar, Breakfast Nook, Stone Counters, Eat-in Kitchen, Updated Kitchen, Sound System
Appliances: Dishwasher, Double Oven, Disposal, Gas Range, Plumbed For Ice Maker, Microwave, Self Cleaning Oven, Trash Compactor, Gas Water Heater
Laundry Features: Gas Dryer Hookup, Hookups Only, Laundry Room
Street Level Features: 4 Bedrooms, 2.5 Baths, Primary Bedrm Suite - 1, Primary Bedrm Retreat, Laundry Facility, Main Entry
Fireplace Features: Family Room, Gas, Gas Starter, Living Room, Stone
Exterior
Building Information
Construction Materials: Stucco
Building Area Total: 3,058
Builder Name: Davidon
Foundation Details: Slab
Exterior Features
Patio And Porch Features: Patio, Covered
Exterior Features: Back Yard, Front Yard, Garden/Play, Sprinklers Automatic
Fencing: Fenced
Mobile Home Information
Model: Chaparral
Property Information
Living Area: 3058
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1996
Lot Information
Lot Size Square Feet: 17480
Lot Size Area: 0.4
Lot Size Units: Acres
Lot Size Acres: 0.4
Lot Features: Court, Cul-De-Sac, Premium Lot
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Zoned
Cooling: Ceiling Fan(s), Zoned
Location
School Information
High School District: San Ramon Valley (925) 552-5500
Public facts
Beds: 5
Baths: 3.0
Sq. Ft.: 3,058
Stories: 1.0
Lot Size: 0.4 acres
Style: Single Family Residential
Year Built: 1996
Year Renovated: 1997
County: Contra Costa County
APN: 2107900330
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Country Club Elementary School
Public K-5 • Assigned • 1.7mi
9/10
Pine Valley Middle School
Public 6-8 • Assigned • 1.4mi
10/10
California High School
Public 9-12 • Assigned • 1.5mi
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 2009. This data may not match public records. Learn more.