1 Colonial Ct is a 2,750 square foot house on a 9,720 square foot lot with 5 bedrooms and 3 bathrooms. - it last sold on February 27, 2004 for $695,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,747,907.
Single-familyProperty Type
1977Year Built
9,720 sq ftLot Size
$636Est. Price/Sq.Ft.
3 car garageParking
Source:Public Records
Redfin Estimate
$1,747,907
$1.1M since sold in February 2004$9,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.4% higher than the average sale price ($1.64M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #11218266
Jan 27, 2004
Listing Removed
—
Public Records
Oct 27, 1999
Sold
$465,000
$169/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #11029941
Sep 18, 1999
Listing Removed
—
Public Records
Oct 9, 1987
Sold
$297,000
$108/sq ft
Public Records
Apr 18, 1985
Sold
$260,000
$95/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$11,870 (+3.3%)
$583,708 + $426,270
$1,009,978
2025
$11,493 (+2.0%)
$583,708 + $426,270
$1,009,978
2024
$11,265 (+1.6%)
$572,263 + $417,912
$990,175
2023
$11,085 (+0.7%)
$561,043 + $409,718
$970,761
2022
$11,004 (+2.0%)
$550,043 + $401,685
$951,728
2021
$10,784 (+0.7%)
$539,258 + $393,809
$933,067
2020
$10,714 (+1.3%)
$528,685 + $386,088
$914,773
2019
$10,572 (+3.9%)
$523,264 + $382,130
$905,394
2018
$10,180 (+3.7%)
$513,004 + $374,638
$887,642
2017
$9,813 (+1.2%)
$493,085 + $360,092
$853,177
2016
$9,698 (+1.0%)
$493,085 + $360,092
$853,177
2015
$9,603 (+1.2%)
$483,417 + $353,032
$836,449
2014
$9,492 (+3.2%)
$466,829 + $340,919
$807,748
2013
$9,201 (+11.8%)
$466,829 + $340,919
$807,748
2012
$8,230 (+5.9%)
$450,000 + $336,000
$786,000
2011
$7,771 (−9.0%)
$407,158 + $297,342
$704,500
2010
$8,536 (−3.7%)
$382,306 + $279,194
$661,500
2009
$8,860 (+3.5%)
$425,652 + $310,848
$736,500
2008
$8,561
$444,391 + $324,534
$768,925
Tax history for 1 Colonial Ct
Year
Property tax
Land + Additions
Assessment*
2026
$11,870 (+3.3%)
$583,708 + $426,270
$1,009,978
2025
$11,493 (+2.0%)
$583,708 + $426,270
$1,009,978
2024
$11,265 (+1.6%)
$572,263 + $417,912
$990,175
2023
$11,085 (+0.7%)
$561,043 + $409,718
$970,761
2022
$11,004 (+2.0%)
$550,043 + $401,685
$951,728
2021
$10,784 (+0.7%)
$539,258 + $393,809
$933,067
2020
$10,714 (+1.3%)
$528,685 + $386,088
$914,773
2019
$10,572 (+3.9%)
$523,264 + $382,130
$905,394
2018
$10,180 (+3.7%)
$513,004 + $374,638
$887,642
2017
$9,813 (+1.2%)
$493,085 + $360,092
$853,177
2016
$9,698 (+1.0%)
$493,085 + $360,092
$853,177
2015
$9,603 (+1.2%)
$483,417 + $353,032
$836,449
2014
$9,492 (+3.2%)
$466,829 + $340,919
$807,748
2013
$9,201 (+11.8%)
$466,829 + $340,919
$807,748
2012
$8,230 (+5.9%)
$450,000 + $336,000
$786,000
2011
$7,771 (−9.0%)
$407,158 + $297,342
$704,500
2010
$8,536 (−3.7%)
$382,306 + $279,194
$661,500
2009
$8,860 (+3.5%)
$425,652 + $310,848
$736,500
2008
$8,561
$444,391 + $324,534
$768,925
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
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
Nov 29, 2012 • 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
Interior
Room Information
# of Rooms: 11
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: SUBDIVISION 4196
Living Sq. Ft: 2,750
Ground Floor Sq. Ft: 1,582
Building Sq. Ft: 2,750
# of Stories: 2
Legal Description: T04196 L0004 B EX MR
Parking & Garage Information
Garage/Parking Sq. Ft: 654
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,720
Legal Lot Number: 4
Acres: 0.2231
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 3.0
Sq. Ft.: 2,750
Stories: 2.0
Lot Size: 9,720 square feet
Style: Single Family Residential
Year Built: 1977
Year Renovated: 1978
County: Contra Costa County
APN: 2106510049
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
Walt Disney Elementary School
Public K-5 • Assigned • 0.3mi
10/10
Pine Valley Middle School
Public 6-8 • Assigned • 0.6mi
10/10
California High School
Public 9-12 • Assigned • 1.1mi
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...