bridgeMLS, Bay East AOR, or Contra Costa AOR #41099570
Jul 2, 2025
Sold
$1,925,000
$745/sq ft
Jun 18, 2025
Pending
—
May 30, 2025
Listed
*
Public Records
Mar 30, 2021
Sold
$1,650,000
$638/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #22029005
May 17, 2017
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #22031327
May 17, 2017
Listing Removed
—
Public Records
Feb 27, 2003
Sold
$645,000
$250/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #11171649
Jan 31, 2003
Listing Removed
—
Public Records
Feb 29, 1984
Sold
$195,000
$75/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$22,197 (+11.6%)
$1,280,000 + $645,000
$1,925,000
2025
$19,896 (+2.1%)
$1,280,000 + $645,000
$1,925,000
2024
$19,492 (−1.0%)
$893,005 + $845,677
$1,738,682
2023
$19,686 (+0.7%)
$875,496 + $829,096
$1,704,592
2022
$19,540 (+88.1%)
$858,330 + $858,330
$1,716,660
2021
$10,389 (+1.1%)
$841,500 + $841,500
$1,683,000
2020
$10,277 (+1.1%)
$468,308 + $394,713
$863,021
2019
$10,164 (+3.9%)
$463,507 + $390,666
$854,173
2018
$9,784 (+3.8%)
$454,419 + $383,006
$837,425
2017
$9,426 (+1.3%)
$436,774 + $368,135
$804,909
2016
$9,304 (+1.3%)
$436,774 + $368,135
$804,909
2015
$9,182 (+1.4%)
$428,210 + $360,917
$789,127
2014
$9,054 (+6.6%)
$413,516 + $348,533
$762,049
2013
$8,496 (+1.2%)
$413,516 + $348,533
$762,049
2012
$8,392 (+0.1%)
$389,614 + $328,386
$718,000
2011
$8,384 (−0.1%)
$389,614 + $328,386
$718,000
2010
$8,394 (−0.1%)
$389,614 + $328,386
$718,000
2009
$8,403 (+3.5%)
$392,707 + $330,994
$723,701
2008
$8,120
$393,640 + $331,781
$725,421
Tax history for 502 Cartagena Ln
Year
Property tax
Land + Additions
Assessment*
2026
$22,197 (+11.6%)
$1,280,000 + $645,000
$1,925,000
2025
$19,896 (+2.1%)
$1,280,000 + $645,000
$1,925,000
2024
$19,492 (−1.0%)
$893,005 + $845,677
$1,738,682
2023
$19,686 (+0.7%)
$875,496 + $829,096
$1,704,592
2022
$19,540 (+88.1%)
$858,330 + $858,330
$1,716,660
2021
$10,389 (+1.1%)
$841,500 + $841,500
$1,683,000
2020
$10,277 (+1.1%)
$468,308 + $394,713
$863,021
2019
$10,164 (+3.9%)
$463,507 + $390,666
$854,173
2018
$9,784 (+3.8%)
$454,419 + $383,006
$837,425
2017
$9,426 (+1.3%)
$436,774 + $368,135
$804,909
2016
$9,304 (+1.3%)
$436,774 + $368,135
$804,909
2015
$9,182 (+1.4%)
$428,210 + $360,917
$789,127
2014
$9,054 (+6.6%)
$413,516 + $348,533
$762,049
2013
$8,496 (+1.2%)
$413,516 + $348,533
$762,049
2012
$8,392 (+0.1%)
$389,614 + $328,386
$718,000
2011
$8,384 (−0.1%)
$389,614 + $328,386
$718,000
2010
$8,394 (−0.1%)
$389,614 + $328,386
$718,000
2009
$8,403 (+3.5%)
$392,707 + $330,994
$723,701
2008
$8,120
$393,640 + $331,781
$725,421
*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
9,350 Sq. Ft.
Year renovated
1990
Sq. Ft.
2,585
Year built
1979
Style
Single Family Residential
County
Contra Costa County
APN
2094720055
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 30, 2026.
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
Jul 20, 2023 • Final
Residential demolition - demolition
Demolition
Mar 21, 2014 • Final
Water heater/softener - plumbing
Plumbing
Water heater
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
Garage Spaces: 3
Covered Spaces: 3
Parking Features: Attached, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Shower Over Tub, Double Vanity, Window
Primary Bathroom Included Features: Shower Over Tub, Tile, Tub, Closet, Double Vanity, Granite, Multiple Shower Heads, Walk-In Closet(s)
Interior Features
Interior Features: Dining Area, Family Room, Storage, Counter - Solid Surface, Updated Kitchen, Energy Star Lighting, Smart Thermostat
Appliances: Dishwasher, Gas Range, Refrigerator, Self Cleaning Oven, Dryer, Washer, Water Filter System, Gas Water Heater, ENERGY STAR Qualified Appliances, Insulated Water Heater
Laundry Features: 220 Volt Outlet, Dryer, Laundry Room, Washer
Room Type: Dining Area, Family Room, Storage, Kitchen, Laundry, Living Room, Master Bathroom, Primary Bedrooms 2+
Fireplace Features: Brick, Family Room, Gas
Basement: Crawl Space
Exterior
Building Information
Construction Materials: Brick
Building Area Total: 2,585
Foundation Details: Raised
Exterior Features
Exterior Features: Back Yard, Front Yard
Door Features: Mirrored Closet Door(s)
Fencing: Fenced
Property Information
Living Area: 2585
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1979
Lot Information
Lot Size Square Feet: 9350
Lot Size Area: 0.22
Lot Size Units: Acres
Lot Size Acres: 0.22
Lot Features: Back Yard, Front Yard, Landscaped
Utilities
Green Features Information
Green Energy Generation: Solar Available
Green Energy Efficient: Attic Fan, Ceiling Insulation, Appliances, Doors, Thermostat, Water Heater
Utility Information
Electric: Photovoltaics Seller Owned, 220 Volts in Kitchen
Utilities: Master Electric Meter, Master Gas Meter
Heating & Cooling
Has Heating
Heating: Natural Gas, Solar
Cooling: Ceiling Fan(s), Central Air, Whole House Fan, Wall/Window Unit(s), ENERGY STAR Qualified Equipment
Location
Homeowners Association Information
Has Association
Association Amenities: Clubhouse, Pool, Tennis Court(s)
Association Name: TWIN CREEKS S HOA
Association Fee: $375
Association Fee Includes: Management Fee
Association Fee Frequency: Annually
HOA Transfer Fees: Paid by Buyer
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,585
Stories: 2.0
Lot Size: 9,350 square feet
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1990
County: Contra Costa County
APN: 2094720055
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 • 0.6mi
10/10
Iron Horse Middle School
Public 6-8 • Assigned • 0.9mi
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...
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2025. This data may not match public records. Learn more.