3897 Aragon Ln is a 2,106 square foot house on a 8,100 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on February 14, 2014 for $703,500. Based on Redfin's San Ramon data, we estimate the home's value is $1,299,977.
Single-familyProperty Type
1979Year Built
8,100 sq ftLot Size
$617Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,299,977
$596K since sold in February 2014$17K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 21% lower than the average sale price ($1.65M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40629196
Oct 1, 2013
Listing Removed
—
Public Records
Aug 15, 2006
Sold
$775,000
$368/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40186232
Jul 19, 2006
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40179795
Jul 11, 2006
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #10580215
May 14, 1997
Listing Removed
—
Public Records
May 14, 1997
Sold
$270,000
$128/sq ft
Public Records
Jun 28, 1982
Sold
$162,000
$77/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$10,667 (+3.2%)
$593,923 + $285,708
$879,631
2025
$10,333 (+2.1%)
$593,923 + $285,708
$879,631
2024
$10,117 (+1.7%)
$582,278 + $280,106
$862,384
2023
$9,950 (+0.8%)
$570,861 + $274,614
$845,475
2022
$9,874 (+2.2%)
$559,668 + $269,230
$828,898
2021
$9,659 (+1.1%)
$548,695 + $263,951
$812,646
2020
$9,551 (+1.1%)
$537,937 + $258,776
$796,713
2019
$9,446 (+3.9%)
$532,422 + $256,123
$788,545
2018
$9,094 (+3.8%)
$521,983 + $251,101
$773,084
2017
$8,760 (+1.3%)
$501,715 + $241,351
$743,066
2016
$8,644 (+1.3%)
$501,715 + $241,351
$743,066
2015
$8,529 (+1.4%)
$491,878 + $236,619
$728,497
2014
$8,408 (+11.1%)
$499,259 + $204,241
$703,500
2013
$7,568 (+17.8%)
$499,259 + $204,241
$703,500
2012
$6,427 (−13.4%)
$449,582 + $183,918
$633,500
2011
$7,423 (+0.7%)
$381,452 + $156,048
$537,500
2010
$7,373 (−11.6%)
$447,097 + $182,903
$630,000
2009
$8,344 (+1.0%)
$447,097 + $182,903
$630,000
2008
$8,258
$510,968 + $209,032
$720,000
Tax history for 3897 Aragon Ln
Year
Property tax
Land + Additions
Assessment*
2026
$10,667 (+3.2%)
$593,923 + $285,708
$879,631
2025
$10,333 (+2.1%)
$593,923 + $285,708
$879,631
2024
$10,117 (+1.7%)
$582,278 + $280,106
$862,384
2023
$9,950 (+0.8%)
$570,861 + $274,614
$845,475
2022
$9,874 (+2.2%)
$559,668 + $269,230
$828,898
2021
$9,659 (+1.1%)
$548,695 + $263,951
$812,646
2020
$9,551 (+1.1%)
$537,937 + $258,776
$796,713
2019
$9,446 (+3.9%)
$532,422 + $256,123
$788,545
2018
$9,094 (+3.8%)
$521,983 + $251,101
$773,084
2017
$8,760 (+1.3%)
$501,715 + $241,351
$743,066
2016
$8,644 (+1.3%)
$501,715 + $241,351
$743,066
2015
$8,529 (+1.4%)
$491,878 + $236,619
$728,497
2014
$8,408 (+11.1%)
$499,259 + $204,241
$703,500
2013
$7,568 (+17.8%)
$499,259 + $204,241
$703,500
2012
$6,427 (−13.4%)
$449,582 + $183,918
$633,500
2011
$7,423 (+0.7%)
$381,452 + $156,048
$537,500
2010
$7,373 (−11.6%)
$447,097 + $182,903
$630,000
2009
$8,344 (+1.0%)
$447,097 + $182,903
$630,000
2008
$8,258
$510,968 + $209,032
$720,000
*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
Dec 30, 2020 • Final
Photovoltaic - electrical
Electrical
Solar
Dec 21, 2016 • Final
Alteration, remodel, repair - building residential
Remodel
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: 9
Exterior
Property Information
Subdivision Name: SUBDIVISION 5216
Living Sq. Ft: 2,106
Ground Floor Sq. Ft: 1,209
Building Sq. Ft: 2,106
# of Stories: 2
Legal Description: T05216 L0019 B
Parking & Garage Information
Garage/Parking Sq. Ft: 506
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,100
Legal Lot Number: 19
Acres: 0.186
County Use Description: SINGLE FAMILY DETACHED WITH MA
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,106
Stories: 2.0
Lot Size: 8,100 square feet
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1995
County: Contra Costa County
APN: 2094710197
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Bollinger Canyon Elementary School
Public K-5 • Assigned • 0.7mi
10/10
Iron Horse Middle School
Public 6-8 • Assigned • 0.8mi
10/10
California High School
Public 9-12 • Assigned • 2.2mi
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...