3447 Keystone Loop, Discovery Bay, CA 94505
OFF MARKET

3447 Keystone Loop
Discovery Bay, CA 94505

  • 4 Beds
  • 3 Baths
  • 2,562 sqft

$709,700

Trulia Estimate
as of May 14, 2026
Est. Refi. Payment $3,673/mo*
Refinance Your Home

$709,700

Trulia Estimate
as of May 14, 2026
Est. Refi. Payment $3,673/mo*
Refinance Your Home
4 Beds
3 Baths
2,562 sqft

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

***SINGLE STORY IN GATED COMMUNITY***
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.

Home Highlights

Parking
Garage
Outdoor
Patio
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
No Info

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 History for 3447 Keystone Loop

DatePriceEventSource
11/26/2010$281,000Sold
CCAR #40454462
09/11/2010$275,000Listed For SaleAgent Provided
07/18/2010$275,000ListingRemovedAgent Provided
05/22/2010$275,000Listed For SaleAgent Provided
01/29/2008$395,000Sold
N/A
09/25/2007$452,774Sold
N/A
10/16/2003$435,000Sold
N/A
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$6,054
Assessment$359,999
Home facts updated by county records

Comparable Sales for 3447 Keystone Loop

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
3507 Keystone Loop, Discovery Bay, CA
0.08
Single-Family Home
$725,000
10/24/25
4
3
3,030
3110 Castle Rock Loop, Discovery Bay, CA
0.13
Single-Family Home
$690,000
06/30/25
3
3
2,302
3638 Otter Brook Loop, Discovery Bay, CA
0.13
Single-Family Home
$850,000
12/01/25
4
3
3,272
3146 Castle Rock Loop, Discovery Bay, CA
0.14
Single-Family Home
$715,000
03/03/26
3
2.5
2,794
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
2078 Bridgeport Loop, Discovery Bay, CA
0.22
Single-Family Home
$725,000
12/19/25
3
3
2,609
2342 Winchester Loop, Discovery Bay, CA
0.31
Single-Family Home
$730,000
03/05/26
4
3
2,913

Assigned Schools

These are the assigned schools for 3447 Keystone Loop.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

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

  • 89 % 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

  • 53 % Say there are community events

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

  • 46 % Say there's wildlife

  • 35 % Say it's walkable to restaurants

  • 26 % Say it's walkable to grocery stores

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

Apartments for Rent

Skip to last item
Skip to first item

Homes for sale near 3447 Keystone Loop

Skip to last item
Skip to first item

Homes for rent near 3447 Keystone Loop

Skip to last item
Skip to first item

Off Market Homes Near 3447 Keystone Loop

Skip to last item
Skip to first item

Explore by feature

3447 Keystone Loop, Discovery Bay, CA 94505 is a 4 bedroom, 3 bathroom, 2,562 sqft single-family home built in 2003. This property is not currently available for sale. 3447 Keystone Loop was last sold on Nov 26, 2010 for $281,000. The current Trulia Estimate for 3447 Keystone Loop is $709,700.