3423 Keystone Loop, Discovery Bay, CA 94505
Property image
Property image
OFF MARKET

$769,200

Trulia Estimate
  • 5 Beds
  • 4 Baths
  • 3,517 sqft

3423 Keystone Loop, Discovery Bay, CA 94505

Est. Refi. Payment $4,771/mo*
Refinance Your Home
Currently Off Market - Sold May 31, 2019 for $580,000

Home Value

Trulia Estimate
$769K
Since last month
Decreased$12K (-1.5%)
Since last year
Decreased$30K (-3.8%)
Since last sale
Increased$191K (+32.9%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +40% in the last 10 years
MonthEstimated value
2026
August 2026$771K
August 2026$769K
July 2026$783K
June 2026$793K
May 2026$798K
April 2026$810K
March 2026$806K
February 2026$807K
January 2026$778K
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
3416 Keystone Loop, Discovery Bay, CA
0.04
Single-Family Home
$683,494
07/01/26
5
4
4,109
3432 Keystone Loop, Discovery Bay, CA
0.03
Single-Family Home
$818,000
04/14/26
5
4
4,011
3438 Keystone Loop, Discovery Bay, CA
0.04
Single-Family Home
$849,900
07/20/26
6
4
4,088
3645 Otter Brook Loop, Discovery Bay, CA
0.10
Single-Family Home
$750,000
11/20/25
5
3
3,536
3627 Otter Brook Loop, Discovery Bay, CA
0.10
Single-Family Home
$827,000
12/23/25
5
3
3,435
3507 Keystone Loop, Discovery Bay, CA
0.09
Single-Family Home
$725,000
10/24/25
4
3
3,030
327 Mendocino Way, Discovery Bay, CA
0.25
Single-Family Home
$740,000
06/15/26
4
4
3,097
716 Seminole Ct, Discovery Bay, CA
0.19
Single-Family Home
$750,000
04/30/26
4
3
3,517
531 Half Moon Ct, Discovery Bay, CA
0.22
Single-Family Home
$858,000
01/29/26
5
4
4,011
3146 Castle Rock Loop, Discovery Bay, CA
0.14
Single-Family Home
$715,000
03/03/26
3
2.5
2,794

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
3354 Lookout Point Loop, Discovery Bay, CA 94505
0.04
$725,000
4
4
2,352
Off Market
3441 Keystone Loop, Discovery Bay, CA 94505
0.04
$688,000
4
2
2,033
Off Market
Address Not Disclosed, Discovery Bay, CA 94505
0.09
$744,800
4
2
2,778
Off Market
3432 Keystone Loop, Discovery Bay, CA 94505
0.04
$818,000
5
4
4,011
Recently Sold
3438 Keystone Loop, Discovery Bay, CA 94505
0.04
$849,900
6
4
4,088
Recently Sold
Address Not Disclosed, Discovery Bay, CA 94505
0.09
$674,300
3
3
2,225
Off Market
3159 Castle Rock Loop, Discovery Bay, CA 94505
0.11
$850,000
5
4
3,917
For Sale
3270 Lookout Point Loop, Discovery Bay, CA 94505
0.10
$764,100
4
2.5
2,778
Off Market
3460 Keystone Loop, Discovery Bay, CA 94505
0.08
$750,200
4
3
2,562
Off Market
3152 Castle Rock Loop, Discovery Bay, CA 94505
0.13
$959,400
4
3
3,578
Off Market
3158 Castle Rock Loop, Byron, CA 94514
0.13
$764,800
4
3
2,528
Off Market
3146 Castle Rock Loop, Discovery Bay, CA 94505
0.14
$715,000
3
2.5
2,794
Recently Sold

Local Information

  • Map ViewExplore the area around 3423 Keystone Loop.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 2003
3,517 sqft
$219/sqft
Garage

About this House

Step Inside this Amazing Home Within the Highly Desirable Lakeshore Guard-Gated Community and You Will Appreciate the Pride Taken from Top to Bottom in this Wonderful Family Home! Enjoy the Welcoming Front Porch Area as it Leads You to the Foyer and Living Room with Soaring Ceilings. This Magnificent Home Boasts 3,517 sqft. which includes 5 Bedrooms + 4 Baths (1 Generously Sized Bedroom & Full Bath Downstairs) + Loft/Office and Highly Sought after 3 Car Garage! Experience the Roomy Open-Concept Floor Plan with Vaulted Ceilings and an Updated Kitchen that Leads you Right into the Family Room with Cozy Fireplace. Enjoy the Peaceful Atmosphere of the Generously-Sized Lot at 7,000 sqft which Includes Professionally Designed English-Style Gardens & Shade Feature Accenting the Rear Patio. *Bonus Features: Community Pool, Basketball Court, Walking Trails Surrounding Beautiful Fountains & Lakes, Picnic Areas & Exercise Stations for Those Health Aficionados! Call for a Private Viewing TODAY!!
3423 Keystone Loop, Discovery Bay, CA 94505 is a 5 bedroom, 4 bathroom, 3,517 sqft single-family home built in 2003. It last sold for $580,000 on May 31, 2019. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $769,200, with a rent estimate of $4,437/month.

Home Details for 3423 Keystone Loop

Interior Features

Heating & Cooling
Heating: Forced Air, GasAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Interior Details
Number of Rooms: 11Types of Rooms: Breakfast Nook, Dining Room, Family Room, Laundry Room, Sun Room
Appliances & Utilities
DishwasherMicrowave
Fireplace & Spa
Fireplace
Windows, Doors, Floors & Walls
Double Paned Windows
Levels, Entrance, & Accessibility
Floors: TileGated Entry

Exterior Features

Exterior Home Features
Roof: Other, TileExterior: Stucco, BrickPatioPorch
Parking & Garage
GarageParking: Garage Attached

Property Information

Year Built
Year Built: 2003Year Updated: 2003
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 7000 sqft

Price and Tax history

DateEventPrice
May 31, 2019
Source: bridgeMLS/CCAR/Bay East AOR #40859086
Sold
$580,000
Apr 24, 2019
Source: Agent Provided
Pending
$589,000
Apr 1, 2019
Source: Agent Provided
Listed For Sale
$589,000
Dec 19, 2003
Source: N/A
Sold
$480,000

Market trends in Discovery Bay

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
109
10MoM

Around this home

What Locals Say about Discovery Bay

At least 100 Trulia users voted on each feature.

  • 94 % Say it's dog friendly

  • 90 % Say there are sidewalks

  • 90 % Say car is needed

  • 90 % Say yards are well-kept

  • 86 % Say people would walk alone at night

  • 85 % Say parking is easy

  • 82 % Say there's holiday spirit

  • 76 % Say kids play outside

  • 75 % Say it's quiet

  • 74 % Say streets are well-lit

  • 64 % Say neighbors are friendly

  • 54 % Say there are community events

  • 50 % Say they plan to stay for at least 5 years

  • 47 % Say there's wildlife

  • 35 % Say it's walkable to restaurants

  • 26 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • Andy E.
    "Discovery Bay is a beautiful bedroom community! It is on the Delta so all things water, boating, skiing, fishing, wildlife viewing are here! Safe community with great schools and great farmers markets nearby! Nearby Brentwood is great community with most everything you could need!"
    4
    Flag
  • Laurie Y.
    "This neighborhood is truly like no other. It’s on the Sacramento delta and the river is in your back yard. I live in a neighborhood where all my neighbors are friendly and keep an eye out for anything peculiar going on without being nosey. A great street to live on. "
    1
    Flag
  • Sierra K.
    "There are parks close by, people are friendly, clean community, and safe to walk in day time and at night"
    1
    Flag
  • Joanna J.
    "The things I like about our community are the holiday Boat parades, trails, nicely maintained parks that are safe for children."
    0
    Flag
  • Dlarry
    "The people here are pleasant and lookout for each other. Parks are great equip with doggie bags. The holidays are festive, most of the neighbors decorate their home during Christmas and Halloween."
    1
    Flag
  • James
    "Great place to raise a family, always having great times with the neighbors, everyone is friendly and helpful. "
    0
    Flag
  • D
    "Winery concerts and annual Christmas lights parade on the water. The boat owners are residents and volunteer to decorate their boats for the event. We have the seasonal cherry picking as well other fruits. "
    0
    Flag
  • D
    "We have an annual Christmas light show on the water. Neighbors are really friendly. The parks are dog friendly."
    0
    Flag
  • Dlarry
    "The parks are dog friendly and provide doggy bag through out the parks. People tend to ignore the speed limits and roll stop signs so be careful when crossing the street with your pet."
    0
    Flag
  • Laurie Y.
    " This town is big on community events....car shows, free concerts, boat parades, boat races, setting world records by tying together anything that floats with people on it ( we are in the record books as the largest human float) Christmas parade and open house.....altogether a very neighborly place to live."
    0
    Flag
  • JG
    "Friendly neighbors, black parties, bbqing, clean town, plenty of water sports, and great local eateries. "
    0
    Flag
  • Jlindemann23
    "It’s quiet but isolated. Neighbors can be nosey but mostly keep to themselves. Definitely need a car out here"
    0
    Flag
  • Ajmahlberg
    "There is no public transportation that I know of. Dial-a-Ride is available. Shuttle drivers also for airport destinations. "
    0
    Flag
  • XandraF.
    "I just recently moved here with family. it's Christmas time so I noticed that a lot of the neighborhood get together and decorate the streets for the holidays "
    0
    Flag
  • Skyler R.
    "There are lots of dogs walking with their owners, and there are 2 new(ish) dog parks at the community center! "
    0
    Flag
  • Samantha R.
    "Not to sure only live here for 2 years, we rent the house and I don’t really go out during the day time, as it is too hot. We go out in the evening, to walk he cat as the floor during the day is to hot."
    0
    Flag
  • Cali G.
    "I've lived here for 8 yrs now as a tenant. The community here at the Lakes are not very open not do they like renters! "
    0
    Flag
  • Barbara W.
    "I am a resident of Discovery Bay. As a whole, this little town is pretty safe. Very pet friendly. Great elementary schools and churches. Most within walking distance. Caution is required when crossing in the crosswalks at Discovery Bay Blvd. and Riverlake Rd's. as there has been a few minor hit and runs. Discovery Bay is a friendly community and a great place to raise your children."
    2
    Flag
  • John M.
    "You can't beat the discovery Bay Country Club living, it is a gated community and all of the homes are manicured with beautiful Golf Course views all through the community, it is a vary relaxed place to live and vary quite."
    0
    Flag
  • Discophil
    "Small town with Excelent Sushi Grill, Starbucks, Recreational Boat harbor w/ restaurant"
    0
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 3423 Keystone Loop

  • What is 3423 Keystone Loop estimated to be worth?
    Trulia's estimated value for 3423 Keystone Loop in Discovery Bay, CA is $769,200.
  • What is the price history for 3423 Keystone Loop?
    3423 Keystone Loop in Discovery Bay, CA last sold for $580,000 in May 2019.
  • Is Discovery Bay a buyer's or seller's market?
    Discovery Bay is currently a buyer's market, based on recent for-sale activity.
  • What do residents say about Discovery Bay?
    Residents describe Discovery Bay, CA as dog-friendly, pedestrian-friendly, and well-kept. See recently sold homes in Discovery Bay, CA.
  • Does 3423 Keystone Loop have air conditioning?
    Yes, 3423 Keystone Loop in Discovery Bay, CA has air conditioning.
  • Does 3423 Keystone Loop have laundry facilities?
    Yes, 3423 Keystone Loop in Discovery Bay, CA has laundry facilities.

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