3447 Keystone Loop, Discovery Bay, CA 94505
Property image
Property image
OFF MARKET

$692,300

Trulia Estimate
  • 4 Beds
  • 3 Baths
  • 2,562 sqft

3447 Keystone Loop, Discovery Bay, CA 94505

Est. Refi. Payment $4,301/mo*
Refinance Your Home
Currently Off Market - Sold Nov 26, 2010 for $281,000

Home Value

Trulia Estimate
$692K
Since last month
Increased$2K (+0.2%)
Since last year
Decreased$10K (-1.5%)
Since last sale
Increased$411K (+146.4%)
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 +36% in the last 10 years
MonthEstimated value
2026
August 2026$692K
August 2026$691K
July 2026$691K
June 2026$706K
May 2026$702K
April 2026$710K
March 2026$717K
February 2026$717K
January 2026$697K
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
3638 Otter Brook Loop, Discovery Bay, CA
0.13
Single-Family Home
$200,500
08/25/26
4
3
3,272
414 Superior Way, Discovery Bay, CA
0.29
Single-Family Home
$283,500
07/07/26
4
3
3,272
3507 Keystone Loop, Discovery Bay, CA
0.08
Single-Family Home
$725,000
10/24/25
4
3
3,030
2072 Bridgeport Loop, Discovery Bay, CA
0.23
Single-Family Home
$690,000
06/18/26
4
3
2,302
3146 Castle Rock Loop, Discovery Bay, CA
0.14
Single-Family Home
$715,000
03/03/26
3
2.5
2,794
2466 Yosemite Way, Discovery Bay, CA
0.28
Single-Family Home
$680,000
08/18/26
4
3
2,613
3645 Otter Brook Loop, Discovery Bay, CA
0.10
Single-Family Home
$750,000
11/20/25
5
3
3,536
716 Seminole Ct, Discovery Bay, CA
0.20
Single-Family Home
$750,000
04/30/26
4
3
3,517
3627 Otter Brook Loop, Discovery Bay, CA
0.12
Single-Family Home
$827,000
12/23/25
5
3
3,435
2335 Winchester Loop, Discovery Bay, CA
0.30
Single-Family Home
$795,000
09/15/25
4
2.5
2,778

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
Address Not Disclosed, Discovery Bay, CA 94505
0.06
$674,300
3
3
2,225
Off Market
3441 Keystone Loop, Discovery Bay, CA 94505
0.02
$688,000
4
2
2,033
Off Market
3270 Lookout Point Loop, Discovery Bay, CA 94505
0.07
$764,100
4
2.5
2,778
Off Market
3275 Lookout Point Loop, Discovery Bay, CA 94514
0.08
$723,300
4
3
2,110
Off Market
3460 Keystone Loop, Discovery Bay, CA 94505
0.04
$750,200
4
3
2,562
Off Market
3354 Lookout Point Loop, Discovery Bay, CA 94505
0.08
$725,000
4
4
2,352
Off Market
3438 Keystone Loop, Discovery Bay, CA 94505
0.04
$849,900
6
4
4,088
Recently Sold
3432 Keystone Loop, Discovery Bay, CA 94505
0.05
$818,000
5
4
4,011
Recently Sold
Address Not Disclosed, Discovery Bay, CA 94505
0.11
$744,800
4
2
2,778
Off Market
Address Not Disclosed, Byron, CA 94514
0.13
$801,600
4
3
2,302
Off Market
3110 Castle Rock Loop, Discovery Bay, CA 94505
0.13
$678,000
3
3
2,302
Off Market
3159 Castle Rock Loop, Discovery Bay, CA 94505
0.13
$850,000
5
4
3,917
For Sale

Local Information

  • Map ViewExplore the area around 3447 Keystone Loop.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 2003
2,562 sqft
$270/sqft
Garage

About this House

***SINGLE STORY IN GATED COMMUNITY***
3447 Keystone Loop, Discovery Bay, CA 94505 is a 4 bedroom, 3 bathroom, 2,562 sqft single-family home built in 2003. It last sold for $281,000 on Nov 26, 2010. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $692,300, with a rent estimate of $3,726/month.

Home Details for 3447 Keystone Loop

Interior Features

Heating & Cooling
Heating: GasAir ConditioningCooling System: CentralHeating Fuel: Gas
Levels, Entrance, & Accessibility
Stories: 1Floors: Tile, Hardwood
Interior Details
AtticNumber of Rooms: 9Types of Rooms: Walk In Closet, Breakfast Nook, Dining Room, Family Room, Laundry Room, Master Bath, PantryCeiling Fan
Appliances & Utilities
Cable ReadyDishwasherDisposalDryerMicrowaveRefrigeratorWasher
Fireplace & Spa
Fireplace
Windows, Doors, Floors & Walls
Double Paned Windows

Exterior Features

Exterior Home Features
Roof: TileGardenLawnPatio
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: 6500 sqft

Price and Tax history

DateEventPrice
Nov 26, 2010
Source: CCAR #40454462
Sold
$281,000
Sep 11, 2010
Source: Agent Provided
Listed For Sale
$275,000
Jul 18, 2010
Source: Agent Provided
ListingRemoved
$275,000
May 22, 2010
Source: Agent Provided
Listed For Sale
$275,000
Jan 29, 2008
Source: N/A
Sold
$395,000

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 3447 Keystone Loop

  • What is 3447 Keystone Loop estimated to be worth?
    Trulia's estimated value for 3447 Keystone Loop in Discovery Bay, CA is $692,300.
  • What is the price history for 3447 Keystone Loop?
    3447 Keystone Loop in Discovery Bay, CA last sold for $281,000 in November 2010.
  • 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 3447 Keystone Loop have air conditioning?
    Yes, 3447 Keystone Loop in Discovery Bay, CA has air conditioning.
  • Does 3447 Keystone Loop have laundry facilities?
    Yes, 3447 Keystone Loop in Discovery Bay, CA has in-unit laundry.

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