bridgeMLS, Bay East AOR, or Contra Costa AOR #40387229
Dec 30, 2008
Sold
$510,000
$369/sq ft
Nov 4, 2008
Listed
$510,000
$369/sq ft
Nov 4, 2008
Listing Removed
—
Public Records
Jun 26, 2007
Sold
$550,000
$398/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$7,769 (+2.0%)
$498,392 + $160,764
$659,156
2024
$7,615 (+1.7%)
$488,620 + $157,612
$646,232
2023
$7,488 (+0.7%)
$479,040 + $154,522
$633,562
2022
$7,433 (+2.0%)
$469,648 + $151,493
$621,141
2021
$7,287 (+0.7%)
$460,440 + $148,523
$608,963
2020
$7,235 (+1.4%)
$451,412 + $145,611
$597,023
2019
$7,134 (+3.8%)
$446,784 + $144,118
$590,902
2018
$6,870 (+3.8%)
$438,024 + $141,293
$579,317
2017
$6,621 (+1.3%)
$421,016 + $135,807
$556,823
2016
$6,536 (+1.0%)
$421,016 + $135,807
$556,823
2015
$6,473 (+1.2%)
$412,761 + $133,145
$545,906
2014
$6,397 (+1.0%)
$398,598 + $128,578
$527,176
2013
$6,332 (+11.6%)
$398,598 + $128,578
$527,176
2012
$5,672
$396,797 + $127,997
$524,794
2011
$5,674 (+0.8%)
$354,989 + $114,511
$469,500
2010
$5,629 (−5.7%)
$354,988 + $114,512
$469,500
2009
$5,969 (−6.8%)
$354,988 + $114,512
$469,500
2008
$6,407
$379,440 + $122,400
$501,840
Tax history for 6 Ona Ct
Year
Property tax
Land + Additions
Assessment*
2025
$7,769 (+2.0%)
$498,392 + $160,764
$659,156
2024
$7,615 (+1.7%)
$488,620 + $157,612
$646,232
2023
$7,488 (+0.7%)
$479,040 + $154,522
$633,562
2022
$7,433 (+2.0%)
$469,648 + $151,493
$621,141
2021
$7,287 (+0.7%)
$460,440 + $148,523
$608,963
2020
$7,235 (+1.4%)
$451,412 + $145,611
$597,023
2019
$7,134 (+3.8%)
$446,784 + $144,118
$590,902
2018
$6,870 (+3.8%)
$438,024 + $141,293
$579,317
2017
$6,621 (+1.3%)
$421,016 + $135,807
$556,823
2016
$6,536 (+1.0%)
$421,016 + $135,807
$556,823
2015
$6,473 (+1.2%)
$412,761 + $133,145
$545,906
2014
$6,397 (+1.0%)
$398,598 + $128,578
$527,176
2013
$6,332 (+11.6%)
$398,598 + $128,578
$527,176
2012
$5,672
$396,797 + $127,997
$524,794
2011
$5,674 (+0.8%)
$354,989 + $114,511
$469,500
2010
$5,629 (−5.7%)
$354,988 + $114,512
$469,500
2009
$5,969 (−6.8%)
$354,988 + $114,512
$469,500
2008
$6,407
$379,440 + $122,400
$501,840
*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
2
Stories
1
Lot width
—
Lot depth
—
Lot size
8,000 Sq. Ft.
Year renovated
1970
Sq. Ft.
1,383
Year built
1969
Style
Single Family Residential
County
Contra Costa County
APN
2121110254
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
Mar 5, 2021 • Final
Miscellaneous - plumbing
Plumbing
Dec 29, 2020 • 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
Interior
Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Interior Features
Interior Features: No Additional Rooms
Appliances: Plumbed For Ice Maker, Range, Gas Water Heater
Lot Features: Corner Lot, Cul-De-Sac, Level, Premium Lot
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air
Location
School Information
High School District: San Ramon Valley (925) 552-5500
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,383
Stories: 1.0
Lot Size: 8,000 square feet
Style: Single Family Residential
Year Built: 1969
Year Renovated: 1970
County: Contra Costa County
APN: 2121110254
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Neil A. Armstrong Elementary School
Public K-5 • Assigned • 0.2mi
10/10
Pine Valley Middle School
Public 6-8 • Assigned • 0.6mi
10/10
California High School
Public 9-12 • Assigned • 0.4mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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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...
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2008. This data may not match public records. Learn more.