Is Discovery Bay, CA dog-friendly?

As of early 2026, 94% of users say it's dog friendly

Does Discovery Bay, CA have sidewalks?

As of early 2026, 90% of users say there are sidewalks

Is a car needed in Discovery Bay, CA?

As of early 2026, 90% of users say car is needed

Are yards well-kept in Discovery Bay, CA?

As of early 2026, 90% of users say yards are well-kept

Would people walk alone at night in Discovery Bay, CA?

As of early 2026, 86% of users say people would walk alone at night

Is parking easy in Discovery Bay, CA?

As of early 2026, 85% of users say parking is easy

Does Discovery Bay, CA show holiday spirit?

As of early 2026, 82% of users say there's holiday spirit

Do kids play outside in Discovery Bay, CA?

As of early 2026, 76% of users say kids play outside

Is Discovery Bay, CA quiet?

As of early 2026, 75% of users say it's quiet

Are the streets well-lit in Discovery Bay, CA?

As of early 2026, 74% of users say streets are well-lit

Are neighbors friendly in Discovery Bay, CA?

As of early 2026, 64% of users say neighbors are friendly

Are there community events in Discovery Bay, CA?

As of early 2026, 54% of users say there are community events

Do residents of Discovery Bay, CA plan to stay at least 5 years?

As of early 2026, 50% of users say they plan to stay for at least 5 years

Is there wildlife in Discovery Bay, CA?

As of early 2026, 47% of users say there's wildlife

Is Discovery Bay, CA walkable to restaurants?

As of early 2026, 35% of users say it's walkable to restaurants

Is Discovery Bay, CA walkable to grocery stores?

As of early 2026, 26% of users say it's walkable to grocery stores

OFF MARKET

3447 Keystone Loop
Discovery Bay, CA 94505

4 Beds
3 Baths
2,562 sqft

$694,100

Trulia Estimate

as of Jul 24, 2026

Est. Refi. Payment $4,242/mo*

Refinance Your Home

$694,100

Trulia Estimate

as of Jul 24, 2026

Est. Refi. Payment $4,242/mo*

Refinance Your Home

4 Beds

3 Baths

2,562 sqft

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

Property Type

Single-Family Home

Year Built

2003

Living Area

2,562 sqft

Price/Sqft

$271

Parking

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. It is currently off market. The Trulia Estimate is $694,100, with a rent estimate of $3,825/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 History for 3447 Keystone Loop

Date	Price	Event	Source
11/26/2010	$281,000	Sold	CCAR #40454462
Recording Date 11/26/2010 County Transfer Tax N/A Total Transfer Tax N/A
09/11/2010	$275,000	Listed For Sale	Agent Provided

07/18/2010	$275,000	ListingRemoved	Agent Provided

05/22/2010	$275,000	Listed For Sale	Agent Provided

01/29/2008	$395,000	Sold	N/A
Recording Date 01/29/2008 Contract Date 01/08/2008 County Transfer Tax $435 Total Transfer Tax N/A
09/25/2007	$452,774	Sold	N/A
Recording Date 09/25/2007 Contract Date 09/19/2007 County Transfer Tax N/A Total Transfer Tax N/A
10/16/2003	$435,000	Sold	N/A
Recording Date 10/16/2003 Contract Date 10/09/2003 County Transfer Tax $479 Total Transfer Tax N/A

Market trends in Discovery Bay

Last updated June 2026

Avg. sale price

—

Sale-to-List Price

—

Price per sq ft

—

Available listings

119

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Property Tax and Assessment

Year	2025
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
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
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

Nearby homes

Get a sense of prices in the area by checking nearby homes.

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OFF MARKET
Est. $653,400
3 bd
3 ba
2,225 sqft
Address Not Disclosed,
Discovery Bay, CA 94505
OFF MARKET
Est. $681,300
4 bd
2 ba
2,033 sqft
3441 Keystone Loop,
Discovery Bay, CA 94505
OFF MARKET
Est. $741,300
4 bd
2.5 ba
2,778 sqft
3270 Lookout Point Loop,
Discovery Bay, CA 94505
OFF MARKET
Est. $717,700
4 bd
3 ba
2,110 sqft
3275 Lookout Point Loop,
Discovery Bay, CA 94514
OFF MARKET
Est. $755,000
4 bd
3 ba
2,562 sqft
3460 Keystone Loop,
Discovery Bay, CA 94505
OFF MARKET
Est. $719,400
4 bd
4 ba
2,352 sqft
3354 Lookout Point Loop,
Discovery Bay, CA 94505
SOLD
JUL 20, 2026
$849,900
6 bd
4 ba
4,088 sqft
3438 Keystone Loop,
Discovery Bay, CA 94505
SOLD
APR 14, 2026
$818,000
5 bd
4 ba
4,011 sqft
3432 Keystone Loop,
Discovery Bay, CA 94505
OFF MARKET
Est. $901,400
6 bd
4 ba
3,394 sqft
3123 Castle Rock Loop,
Discovery Bay, CA 94505
OFF MARKET
Est. $727,300
4 bd
2 ba
2,778 sqft
Address Not Disclosed,
Discovery Bay, CA 94505
OFF MARKET
Est. $786,300
4 bd
3 ba
2,302 sqft
Address Not Disclosed,
Byron, CA 94514
OFF MARKET
Est. $664,700
3 bd
3 ba
2,302 sqft
3110 Castle Rock Loop,
Discovery Bay, CA 94505

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Additional Cost

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
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.
Resident
5y ago
"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!"
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Laurie Y.
Resident
6y ago
"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
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Sierra K.
Resident
6y ago
"There are parks close by, people are friendly, clean community, and safe to walk in day time and at night"
1
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Joanna J.
Resident
6y ago
"The things I like about our community are the holiday Boat parades, trails, nicely maintained parks that are safe for children."
0
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Dlarry
Resident
6y ago
"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
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James
Resident
6y ago
"Great place to raise a family, always having great times with the neighbors, everyone is friendly and helpful. "
0
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D
Resident
6y ago
"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
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D
Resident
6y ago
"We have an annual Christmas light show on the water. Neighbors are really friendly. The parks are dog friendly."
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Dlarry
Resident
7y ago
"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."
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Laurie Y.
Resident
7y ago
" 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."
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JG
Resident
7y ago
"Friendly neighbors, black parties, bbqing, clean town, plenty of water sports, and great local eateries. "
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Jlindemann23
Resident
7y ago
"It’s quiet but isolated. Neighbors can be nosey but mostly keep to themselves. Definitely need a car out here"
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Ajmahlberg
Resident
7y ago
"There is no public transportation that I know of. Dial-a-Ride is available. Shuttle drivers also for airport destinations. "
0
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XandraF.
Resident
7y ago
"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
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Skyler R.
Resident
7y ago
"There are lots of dogs walking with their owners, and there are 2 new(ish) dog parks at the community center! "
0
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Samantha R.
Resident
8y ago
"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
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Cali G.
Resident
8y ago
"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
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Barbara W.
11y ago
"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."
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John M.
12y ago
"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
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Discophil
14y ago
"Small town with Excelent Sushi Grill, Starbucks, Recreational Boat harbor w/ restaurant"
0
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