NOT LISTED FOR SALE

520 Stone Mountain Dr Oakley, CA 94561

South Oakley Neighborhood

Estimated Value: $825,000 - $841,000

5 Beds
3 Baths
2,768 Sq Ft
$300/Sq Ft Est. Value

Sale Details

Date Sold: December 10, 2025

Last sale price $839,000 $303 Per Sq Ft

Est. 1% decrease in value since last sale

Current estimated payment $5,451 / mo

30 Days on Market

Highlights

  • RV or Boat Parking
  • Traditional Architecture
  • Electric Vehicle Charging Station
  • Updated Kitchen
  • No HOA
  • 2 Car Attached Garage

About This Home

As of December 2025

Welcome to Duarte Ranch Estates! This beautifully maintained 5-bedroom, 3-bath home offers 2,753 sq ft of comfort and style with a spacious, light-filled floorplan. Gorgeous laminate flooring flows throughout, creating a warm, inviting feel. The gourmet kitchen boasts an oversized island perfect for family gatherings, while the open living and dining areas make entertaining effortless. Upstairs features 4 bedrooms, a laundry room, and a versatile loft—ideal for work or play. The primary suite offers a relaxing sunk-in tub, dual sinks, and a generous walk-in closet. Outdoors, enjoy a built-in gas fire pit, BBQ island, pergola, stamped concrete patio, and large shed for storage—your own private retreat. Additional highlights include a Tesla charging station, epoxy garage floor, extended driveway, and nearby community park. Conveniently located approx. 2.5 miles to Hwy 4, minutes to Antioch BART, and near the upcoming Safeway-anchored shopping center with up to 73 EV stations. Pride of ownership throughout! (*QUALIFIED BUYERS)

Last Agent to Sell the Property

Christina Pineda

Exp Realty of California Inc. License #02089190 Listed on: 10/16/2025

Exp Realty of California Inc.

Co-Listed By

Cicelia McGee

Exp Realty Of California Inc. License #02262933

Last Buyer's Agent

John Brignoli

License #02230706

Home Details

Home Type

  • Single Family

Year Built

  • Built in 2019

Lot Details

  • 6,000 Sq Ft Lot
  • Back and Front Yard

Parking

  • 2 Car Attached Garage
  • Side Facing Garage
  • Garage Door Opener
  • Parking Lot
  • RV or Boat Parking

Home Design

  • Traditional Architecture
  • Tile Roof
  • Stucco

Interior Spaces

  • 2-Story Property
  • Living Room with Fireplace
  • Vinyl Flooring

Kitchen

  • Updated Kitchen
  • Self-Cleaning Oven
  • Gas Range
  • Microwave
  • Plumbed For Ice Maker
  • Dishwasher

Bedrooms and Bathrooms

  • 5 Bedrooms
  • 3 Full Bathrooms

Laundry

  • Laundry Room
  • Dryer
  • Washer
  • 220 Volts In Laundry

Utilities

  • Forced Air Zoned Heating and Cooling System
  • 220 Volts in Kitchen

Community Details

  • No Home Owners Association
  • Built by Discovery Home
  • Oakley Subdivision
  • Electric Vehicle Charging Station

Listing and Financial Details

  • Assessor Parcel Number 0342600426

Home Details

Home Type

Single Family

Year Built

Built in 2019

Lot Details

6,000 Sq Ft Lot

Parking

2

Listing Details

  • Stories: 2
  • Year Built: 2019
  • Property Sub Type: Detached
  • Prop. Type: Residential
  • Co List Office Mls Id: CCEPRC
  • Subdivision Name: Oakley
  • Directions: Laurel to Rose
  • Architectural Style: Traditional
  • Garage Yn: Yes
  • Unit Levels: Two Story
  • New Construction: No
  • Special Features: VirtualTour

Interior Features

  • Flooring: Vinyl
  • Appliances: Dishwasher, Gas Range, Plumbed For Ice Maker, Microwave, Refrigerator, Self Cleaning Oven, Dryer, Washer
  • Full Bathrooms: 3
  • Total Bedrooms: 5
  • Fireplace Features: Living Room
  • Fireplaces: 1
  • Fireplace: Yes
  • Room Kitchen Features: 220 Volt Outlet, Stone Counters, Dishwasher, Gas Range/Cooktop, Ice Maker Hookup, Kitchen Island, Microwave, Refrigerator, Self-Cleaning Oven, Updated Kitchen

Exterior Features

  • Roof: Tile
  • Lot Features: Back Yard, Front Yard, Landscaped, Sprinklers In Rear
  • Pool Features: None
  • Pool Private: No
  • Builder Name: Discovery Home
  • Construction Type: Stucco
  • Property Condition: Existing

Garage/Parking

  • Garage Spaces: 2
  • Parking Features: Attached, RV/Boat Parking, Side Yard Access, Parking Lot, Electric Vehicle Charging Station(s), Garage Faces Side, Garage Door Opener

Utilities

  • Heating: Forced Air, Zoned
  • Cooling: Central Air
  • Laundry Features: 220 Volt Outlet, Dryer, Laundry Room, Washer
  • Cooling Y N: Yes
  • Heating Yn: Yes
  • Electric: No Solar, 220 Volts in Kitchen
  • Water Source: Public

Condo/Co-op/Association

  • Association: No

Lot Info

  • Lot Size Sq Ft: 6000
  • Parcel Number: 0342600426

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Oct 16, 2025
Closed on
Dec 4, 2025
Sold by
Chu Yan Ru and Chu Dean S
Bought by
Renteria Christian and Renteria Katherine
Seller's Agent
Christina Pineda
Exp Realty of California Inc.
Buyer's Agent
John Brignoli
List Price
$849,000
Sold Price
$839,000
Premium/Discount to List
-$10,000
-1.18%
Views
45
Current Estimated Value
$831,717

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$7,283
Avg. Annual Appreciation
-2.10%
Original Mortgage
$150,000
Outstanding Balance
$150,000
Interest Rate
6.17%
Mortgage Type
New Conventional
Estimated Equity
$681,717

Purchase Details

Listed on
Jan 16, 2020
Closed on
Apr 9, 2020
Sold by
Chu Chun
Bought by
Chu Yan
Seller's Agent
Dale Cogan
Discovery Realty Inc.
Buyer's Agent
Dale Cogan
Big Block Realty North
List Price
$628,095
Sold Price
$690,290
Premium/Discount to List
$62,195
9.9%

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
3.60%
Original Mortgage
$599,400
Interest Rate
3.3%
Mortgage Type
New Conventional
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
Not Available
List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
Renteria Christian $922 Chicago Title
Chu Yan -- Old Republic Title Company
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Open Renteria Christian $150,000
Previous Owner Chu Yan $599,400
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft Prior Sale
12/10/2025 12/10/25 Sold $839,000 -1.2% $303 / Sq Ft
11/15/2025 11/15/25 Pending -- -- --
10/16/2025 10/16/25 For Sale $849,000 +23.0% $307 / Sq Ft
06/16/2025 06/16/25 Off Market $690,290 -- --
02/04/2025 02/04/25 Off Market $690,290 -- --
06/04/2020 06/04/20 Sold $690,290 +8.2% $251 / Sq Ft View Prior Sale
04/01/2020 04/01/20 Pending -- -- --
03/05/2020 03/05/20 Price Changed $638,095 +1.6% $232 / Sq Ft
01/16/2020 01/16/20 For Sale $628,095 -- $228 / Sq Ft
Source: Contra Costa Association of REALTORS®

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $12,131 $754,830 $164,045 $590,785
2024 $11,697 $740,030 $160,829 $579,201
2023 $11,697 $725,521 $157,676 $567,845
2022 $11,493 $711,296 $154,585 $556,711
2021 $11,244 $697,350 $151,554 $545,796
2019 $2,494 $141,816 $141,816 $0
Source: Public Records

Agents Affiliated with this Home

  • Christina Pineda

    Seller's Agent in 2025

    Christina Pineda

    Exp Realty of California Inc.

    (925) 440-9747

    1 in this area

    98 Total Sales

    Christina Pineda
    Section Image

  • C

    Seller Co-Listing Agent in 2025

    Cicelia McGee

    Exp Realty Of California Inc.

    (925) 349-8199

    1 in this area

    3 Total Sales

    Cicelia McGee
    Section Image

  • J

    Buyer's Agent in 2025

    John Brignoli

    Section Image

  • D

    Seller's Agent in 2020

    Dale Cogan

    Discovery Realty Inc.

    Section Image
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Map

Source: Contra Costa Association of REALTORS®

MLS Number: 41115019

Contra Costa Association of REALTORS®

APN: 034-260-042-6

California Contra Costa County Oakley 94561 South Oakley

520 Stone Mountain Dr, Oakley, CA

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

Contra Costa Association of REALTORS® Bay East ©2026. BridgeMLS ©2026, CCAR ©2026. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, BridgeMLS or CCAR MLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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