OFF MARKET

Off Market Mar 2023 for $750K

$812,541

Est. refi paymentEst. refi $5,767/mo

•

3,517

sq ft

3444 Keystone Loop, Discovery Bay, CA 94505

About this home

Gated community Lakeshore home offering five bedrooms plus a large loft. Upstairs, the master suite boasts a large walk-in closet, private bath and dual sinks, a shower and a separate soaking tub. a full bedroom and bathroom downstairs. Formal living and dining as well as a large chef's kitchen with an island opening up to a spacious family room. Three car garage plus potential for side yard access. Several spaces for entertaining in the backyard including fire pit.

Single-familyProperty Type

2003Year Built

6,800 sq ftLot Size

$231Est. Price/Sq.Ft.

3 spacesParking

Listed by Shuxian Feng •DRE #DRE #02049318 • Alliance Bay Realty

•510-871-7234 (agent)

•susanna_feng@hotmail.com (agent)

•510-742-6600 (broker)

Bought with Angelica Mia Pokrywka •DRE #DRE #02085968 • WR Properties

•925-626-8352 (broker)

Redfin checked: a minute ago

•Source:San Francisco MLS #422712405

Redfin Estimate

$812,541

$63K since sold in March 2023$5,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.6% higher than the average sale price ($770K) of 6 comparable homes.

SOLD JUL 20, 2026
$849,900
A
6 beds4 baths4,088 sq ft
3438 Keystone Loop, Discovery Bay, CA 94505
BOUGHT WITH REDFIN JUN 15, 2026
$740,000
B
4 beds3.5 baths3,097 sq ft
327 Mendocino Way, Discovery Bay, CA 94505
Iron Valley Real Estate NorCal, Iron Valley Real Estate NorCal
SOLD APR 30, 2026
$750,000
C
4 beds3 baths3,517 sq ft
716 Seminole Ct, Discovery Bay, CA 94505
SOLD JUL 7, 2026
$740,000
D
5 beds3 baths3,092 sq ft
6372 Crystal Springs Cir, Discovery Bay, CA 94505
SOLD BY REDFIN APR 14, 2026
$818,000
E
5 beds4 baths4,011 sq ft
3432 Keystone Loop, Discovery Bay, CA 94505
SOLD APR 3, 2026
$720,000
F
4 beds3.5 baths3,333 sq ft
5675 Arcadia Cir, Discovery Bay, CA 94505

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Earn from this home

Sell

$209,451

Est. take-home

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Refinance

Est. cash available

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Rent

$4,119/mo

Redfin rental estimate

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Market trends in 94505, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

97.7%

0.6% MoM

Median sale price

$792K

$8K MoM

Avg. days on market

34d

7 days MoM

Recently sold homes

2 MoM

New listings for sale

$789,000
4 beds3.5 baths3,102 sq ft
6391 Crystal Springs Cir, Discovery Bay, CA 94505
$835,000
3 beds2.5 baths2,330 sq ft
7364 Bay Harbor Way, Discovery Bay, CA 94505
OPEN TUE, 10AM TO 1PM
$849,000
4 beds3 baths3,367 sq ft
453 Emerson Ct, Discovery Bay, CA 94505
$979,000
4 beds3 baths2,263 sq ft
9133 Calypso Ct, Discovery Bay, CA 94505
Coldwell Banker Realty, Coldwell Banker Realty
COMING SOON
$799,000
3 beds2 baths2,168 sq ft
4681 Spinnaker Way, Discovery Bay, CA 94505
$818,000
4 beds2.5 baths2,340 sq ft
7295 Keyesport Way, Discovery Bay, CA 94505
$745,000
4 beds3 baths2,432 sq ft
3694 Otter Brook Loop, Discovery Bay, CA 94505
$1,250,000
4 beds3 baths2,636 sq ft
4880 Discovery Pt, Discovery Bay, CA 94505
OPEN TUE, 11AM TO 2PM
$685,000
4 beds2.5 baths1,706 sq ft
3524 Sailboat Dr, Discovery Bay, CA 94505
$689,000
4 beds3 baths2,562 sq ft
6171 Seneca Cir, Discovery Bay, CA 94505
See all

Provided by Redfin

Redfin agents who toured

The kitchen has stone countertops, an island, stainless appliances, tile backsplash, gas range and recessed lights. The living room has a ceiling fan and fireplace. The upstairs has carpet and a loft.
4 years ago• May not reflect the current state of the home
Terry Kreuz
Redfin Associate agent

Sale history for 3444 Keystone Loop

Date

Event

Price

San Francisco MLS #422712405

Mar 10, 2023

Sold

$750,000

$213/sq ft

Feb 11, 2023

Pending

—

Dec 15, 2022

Listed

$765,000

$218/sq ft

San Francisco MLS #422684438

Sep 23, 2022

Price Changed

Sep 16, 2022

Price Changed

Sep 7, 2022

Price Changed

Aug 27, 2022

Price Changed

Aug 8, 2022

Price Changed

Aug 4, 2022

Listed

Public Records

Aug 7, 2020

Sold

$655,000

$186/sq ft

Public Records

Dec 12, 2012

Sold

$385,000

$109/sq ft

Public Records

Oct 12, 2012

Sold

$285,500

$81/sq ft

Public Records

Nov 1, 2006

Sold

$730,000

$208/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$10,739 (+4.8%)

$132,651 + $663,255

$795,906

2024

$10,248 (+9.7%)

$130,050 + $650,250

$780,300

2023

$9,346 (+1.7%)

$127,500 + $637,500

$765,000

2022

$9,194 (+2.4%)

$104,040 + $577,422

$681,462

2021

$8,978 (+37.9%)

$102,000 + $566,100

$668,100

2020

$6,511 (+1.3%)

$100,000 + $555,000

$655,000

2019

$6,427 (+4.1%)

$30,397 + $403,099

$433,496

2018

$6,175 (+2.2%)

$29,801 + $395,196

$424,997

2017

$6,040 (+5.9%)

$28,645 + $379,851

$408,496

2016

$5,703 (+2.8%)

$28,645 + $379,851

$408,496

2015

$5,545 (+1.9%)

$28,084 + $372,403

$400,487

2014

$5,439 (+0.9%)

$27,122 + $359,625

$386,747

2013

$5,393 (+9.8%)

$27,122 + $359,625

$386,747

2012

$4,910 (+4.9%)

$27,000 + $358,000

$385,000

2011

$4,682 (+2.1%)

$82,479 + $252,021

$334,500

2010

$4,585 (+1.5%)

$77,671 + $237,329

$315,000

2009

$4,518 (−23.3%)

$77,671 + $237,329

$315,000

2008

$5,894

$77,671 + $237,329

$315,000

Tax history for 3444 Keystone Loop

Year

Property tax

Land + Additions

Assessment*

2025

$10,739 (+4.8%)

$132,651 + $663,255

$795,906

2024

$10,248 (+9.7%)

$130,050 + $650,250

$780,300

2023

$9,346 (+1.7%)

$127,500 + $637,500

$765,000

2022

$9,194 (+2.4%)

$104,040 + $577,422

$681,462

2021

$8,978 (+37.9%)

$102,000 + $566,100

$668,100

2020

$6,511 (+1.3%)

$100,000 + $555,000

$655,000

2019

$6,427 (+4.1%)

$30,397 + $403,099

$433,496

2018

$6,175 (+2.2%)

$29,801 + $395,196

$424,997

2017

$6,040 (+5.9%)

$28,645 + $379,851

$408,496

2016

$5,703 (+2.8%)

$28,645 + $379,851

$408,496

2015

$5,545 (+1.9%)

$28,084 + $372,403

$400,487

2014

$5,439 (+0.9%)

$27,122 + $359,625

$386,747

2013

$5,393 (+9.8%)

$27,122 + $359,625

$386,747

2012

$4,910 (+4.9%)

$27,000 + $358,000

$385,000

2011

$4,682 (+2.1%)

$82,479 + $252,021

$334,500

2010

$4,585 (+1.5%)

$77,671 + $237,329

$315,000

2009

$4,518 (−23.3%)

$77,671 + $237,329

$315,000

2008

$5,894

$77,671 + $237,329

$315,000

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

6,800 Sq. Ft.

Year renovated

2003

Sq. Ft.

3,517

Year built

2003

Style

Single Family Residential

County

Contra Costa County

APN

0114210388

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

P-1

Planned Unit District

A large-scale integrated development or a general plan special area of concern provides an opportunity for, and requires cohesive design when flexible regulations are applied; whereas the application of conventional regulation, designed primarily for individual lot development, to a large-scale development or special area may create a monotonous and inappropriate neighborhood. The planned unit district is intended to allow diversification in the relationship of various uses, buildings, structures, lot sizes and open space while insuring substantial compliance with the general plan and the intent of the county code in requiring adequate standards necessary to satisfy the requirements of the public health, safety and general welfare. These standards shall be observed without unduly inhibiting the advantages of large-scale site or special area planning.

Permitted uses

Include but are not limited to:

Housing-Single unit

Property details

Parking

Garage Information
Has Garage
Has Attached Garage

Parking Information
Parking Features: Attached, Garage Door Opener, Side By Side, On Site (Single Family Only)
# of Parking Total: 3

Interior

Bedrooms Information
# of Bedrooms: 5

Bathroom Information
Count of Bathrooms: 4
# of Full Bathrooms: 4

Interior Features
Has Heating
Heating: Central
Has Cooling
Cooling: Ceiling Fan(s), Central Air
Flooring: Carpet, Tile
Has Fireplace(s)
# of Fireplaces Total: 1
Fireplace Features: Living Room
Appliances: Dishwasher, Microwave

Exterior

Exterior Features
Entry Level: 0
Window Features: Window Coverings, Screens

Building Information
Living Area: 3517
Living Area Units: Square Feet
Living Area Source: Owner
Building Area Total: 3517
Building Area Units: Square Feet
Building Area Source: Owner
Construction Materials: Stucco
Year Built: 2003
Year Built Source: Other
Roof: Tile
Foundation Details: Slab

Mobile Home Information
Mobile Dim Units: Feet

Pool Information
Has Spa
Spa Features: Jetted Tub

Property Type
Property Type: Residential
Property SubType: Single Family Residence

Property Information
Security Features: Carbon Monoxide Detector(s), Gated with Guard

Lot Information
Lot Size Sq. Ft.: 6800
Lot Size Acres: 0.1561
Lot Size Area: 6800
Lot Size Units: SqFt
Lot Size Units: Square Feet
Elevation: 0
Elevation Units: Feet

Utilities

Utility Information
Electric: 220 Volts in Laundry
Sewer: Public Sewer
Water Source: Public

Location

HOA Information
Has Homeowners Association
Association Fee: 205
Association Fee Frequency: Monthly
Association Fee Includes: Common Areas, Management, Security
Association Amenities: Playground, Pool

Public facts

Beds: 4
Baths: 4.0
Sq. Ft.: 3,517
Stories: 2.0
Lot Size: 6,800 square feet
Style: Single Family Residential
Year Built: 2003
Year Renovated: 2003
County: Contra Costa County
APN: 0114210388

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Timber Point Elementary School

Public K-5 • Assigned • 0.5mi

6/10

Excelsior Middle School

Public 6-8 • Assigned • 2.8mi

4/10

Liberty High School

Public 9-12 • Assigned • 4.5mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 102° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

9/10 Air Factor

20 unhealthy days expected this year, 21 days in 30 years

Provided by First Street

Historical weather

Discovery Bay, CA • 94505

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 12.6 hours in June and 4.7 hours in December, placing it above the U.S. average for solar exposure.

12.6 hrs

4.7 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$772,000 – $935,000

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Nearby similar homes

NEW CONSTRUCTION3D WALKTHROUGH

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Listing provided by Zillow

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OPEN TUE, 10AM TO 1PM

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Coldwell Banker Realty, Coldwell Banker Realty

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4681 Spinnaker Way, Discovery Bay, CA 94505

$818,000

4 beds2.5 baths2,340 sq ft

7295 Keyesport Way, Discovery Bay, CA 94505

$745,000

4 beds3 baths2,432 sq ft

3694 Otter Brook Loop, Discovery Bay, CA 94505

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Home values near 3444 Keystone Loop

Data from public records.

Address	Redfin Estimate
3423 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 3517 Sq. Ft.	$815,482
3441 Keystone Loop, Discovery Bay, CA 4 Beds \| 2 Baths \| 2033 Sq. Ft.	$748,095

Address	Redfin Estimate
3429 Keystone Loop, Discovery Bay, CA 6 Beds \| 4 Baths \| 4285 Sq. Ft.	$923,012
3447 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 2562 Sq. Ft.	$675,299

Address	Redfin Estimate
3435 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 4011 Sq. Ft.	$853,496
3453 Keystone Loop, Discovery Bay, CA 3 Beds \| 3 Baths \| 3518 Sq. Ft.	$794,985

Property information provided by San Francisco MLS when last listed in 2022. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94505, CA

Redfin agents who toured

Sale history for 3444 Keystone Loop

Tax history for 3444 Keystone Loop

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94505

Home values near 3444 Keystone Loop

More real estate resources