OFF MARKET

Off Market Jul 2020 for $775K

$1,027,556

Est. refi paymentEst. refi $5,911/mo

•

4,011

sq ft

3471 Keystone Loop, Discovery Bay, CA 94505

About this home

Welcome to One of the Finest Homes in The Lakeshore Gated Community 5 Bedrooms (Including a Jr. Master Suite), 4 Bathrooms, Large Office Space w/ Double French Doors, Hardwood Floors, A Bonus Loft Upstairs, A Chefs Kitchen and Much More...The 11,629 Sq Ft Lot Offers You a Backyard Space that Feels Like Your Own Private Park...Completely Finished with No Rear Neighbors. The Wetlands Views from Upstairs are Stunning! This is the First Time the Home is Being Offered For Sale Since the New Construction Purchase...The Owners have Cared for This Home with So Much Pride and Love. This is Your Opportunity to Own One of the Best Homes In Lakeshore! TAKE A 3D VIRTUAL TOUR NOW - USE LINK https://my.matterport.com/show/?m=zsDhc7HsDoF

Single-familyProperty Type

2003Year Built

0.27 acresLot Size

$256Est. Price/Sq.Ft.

2 car garageParking

Listed by Emilio Leypon •DRE #01422355 • Corcoran Icon Properties

Bought with Bryan Fonseca •DRE #01818835 • Homesmart Optima Realty

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40909376

Redfin Estimate

$1,027,556

$253K since sold in July 2020$6,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.7% higher than the average sale price ($1.00M) of 6 comparable homes.

SOLD JAN 29, 2026
$858,000
A
5 beds4 baths4,011 sq ft
531 Half Moon Ct, Discovery Bay, CA 94505
SOLD BY REDFIN APR 14, 2026
$818,000
B
5 beds4 baths4,011 sq ft
3432 Keystone Loop, Discovery Bay, CA 94505
SOLD JUL 20, 2026
$849,900
C
6 beds4 baths4,088 sq ft
3438 Keystone Loop, Discovery Bay, CA 94505
SOLD AUG 24, 2026
$1,650,000
D
5 beds3.5 baths4,062 sq ft
885 Willow Lake Rd, Discovery Bay, CA 94505
SOLD MAY 28, 2026
$950,000
E
5 beds3 baths3,714 sq ft
6144 Seneca Cir, Discovery Bay, CA 94505
SOLD APR 21, 2026
$879,000
F
5 beds3 baths3,139 sq ft
5647 Arcadia Cir, Discovery Bay, CA 94505

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Earn from this home

Sell

$427,609

Est. take-home

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Refinance

Est. cash available

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Rent

$4,367/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

OPEN SAT, 1PM TO 3PM
$699,999
2 beds2 baths1,370 sq ft
825 Discovery Bay Blvd, Discovery Bay, CA 94505
$685,000
4 beds2.5 baths1,706 sq ft
3524 Sailboat Dr, Discovery Bay, CA 94505
NEW 7 HRS AGO
$689,000
4 beds3 baths2,562 sq ft
6171 Seneca Cir, Discovery Bay, CA 94505
NEW 31 HRS AGO
$682,500
4 beds2 baths1,760 sq ft
2419 Imperial Ct, Discovery Bay, CA 94505
NEW 1 DAY AGO
$689,000
4 beds3 baths2,698 sq ft
2652 Crescent Way, Discovery Bay, CA 94505
LISTED BY REDFIN
$849,000
4 beds3 baths2,455 sq ft
1280 Saint Andrews Dr, Discovery Bay, CA 94505
OPEN SUN, 12PM TO 2PM
$450,000
2 beds2 baths1,248 sq ft
5679 Schooner Loop, Discovery Bay, CA 94505
$549,999
4 beds2.5 baths1,782 sq ft
4108 Regatta Dr, Discovery Bay, CA 94505
COMING SOON
$574,900
3 beds2 baths1,484 sq ft
3733 Catamaran Ct, Discovery Bay, CA 94505
$850,000
5 beds4 baths3,917 sq ft
3159 Castle Rock Loop, Discovery Bay, CA 94505
See all

Provided by Redfin

Sale history for 3471 Keystone Loop

Year

Property tax

Land + Additions

Assessment*

2025

$11,856 (+4.6%)

$143,530 + $756,294

$899,824

2024

$11,329 (+1.6%)

$140,716 + $741,465

$882,181

2023

$11,156 (+1.7%)

$137,957 + $726,927

$864,884

2022

$10,975 (+6.8%)

$135,252 + $712,674

$847,926

2021

$10,280 (+18.9%)

$132,600 + $698,700

$831,300

2020

$8,643 (−0.4%)

$130,000 + $645,000

$775,000

2019

$8,675 (+9.4%)

$109,613 + $518,387

$628,000

2018

$7,932 (+4.6%)

$109,613 + $518,387

$628,000

2017

$7,583 (+6.8%)

$95,912 + $453,588

$549,500

2016

$7,099 (+14.2%)

$95,912 + $453,588

$549,500

2015

$6,217 (−8.4%)

$92,596 + $437,904

$530,500

2014

$6,787 (+26.5%)

$89,105 + $421,395

$510,500

2013

$5,366 (+0.1%)

$89,105 + $421,395

$510,500

2012

$5,359 (+12.2%)

$66,764 + $315,736

$382,500

2011

$4,776 (−4.9%)

$66,764 + $315,736

$382,500

2010

$5,024 (+1.3%)

$57,687 + $272,813

$330,500

2009

$4,958 (−24.9%)

$63,186 + $298,814

$362,000

2008

$6,601

$63,186 + $298,814

$362,000

Tax history for 3471 Keystone Loop

Year

Property tax

Land + Additions

Assessment*

2025

$11,856 (+4.6%)

$143,530 + $756,294

$899,824

2024

$11,329 (+1.6%)

$140,716 + $741,465

$882,181

2023

$11,156 (+1.7%)

$137,957 + $726,927

$864,884

2022

$10,975 (+6.8%)

$135,252 + $712,674

$847,926

2021

$10,280 (+18.9%)

$132,600 + $698,700

$831,300

2020

$8,643 (−0.4%)

$130,000 + $645,000

$775,000

2019

$8,675 (+9.4%)

$109,613 + $518,387

$628,000

2018

$7,932 (+4.6%)

$109,613 + $518,387

$628,000

2017

$7,583 (+6.8%)

$95,912 + $453,588

$549,500

2016

$7,099 (+14.2%)

$95,912 + $453,588

$549,500

2015

$6,217 (−8.4%)

$92,596 + $437,904

$530,500

2014

$6,787 (+26.5%)

$89,105 + $421,395

$510,500

2013

$5,366 (+0.1%)

$89,105 + $421,395

$510,500

2012

$5,359 (+12.2%)

$66,764 + $315,736

$382,500

2011

$4,776 (−4.9%)

$66,764 + $315,736

$382,500

2010

$5,024 (+1.3%)

$57,687 + $272,813

$330,500

2009

$4,958 (−24.9%)

$63,186 + $298,814

$362,000

2008

$6,601

$63,186 + $298,814

$362,000

*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

11,629

Year renovated

2004

Sq. Ft.

4,011

Year built

2003

Style

Single Family Residential

County

Contra Costa County

APN

0114210123

Parking Spaces

Basement

Accessible

HOA Dues

$205 /month

Garage

Yes

Features

Pool

Last updated by owner on Jul 5, 2021.

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

Dec 10, 2021 • Final

Building - residential solar photovoltaic

Install a roof top solar photovoltaic system and a new electrical sub panel.

Battery

Electrical

Solar

May 19, 2021 • Final

Building/residential/p/pool

Construct a new swimming pool.

Pool and hot tub

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached

Interior

Virtual Tour

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

Interior Features
Interior Features: Bonus/Plus Room, Dining Area, Family Room, In-Law Floorplan, Rec/Rumpus Room, Study, Stone Counters, Eat-in Kitchen, Updated Kitchen
Appliances: Disposal, Gas Range, Microwave, Oven, Gas Water Heater, Water Softener
Laundry Features: Laundry Room
Street Level Features: 1 Bedroom, Laundry Facility, Main Entry
Fireplaces Total: 1
Has Fireplace
Flooring: Hardwood

Room Information
Kitchen Features: Counter - Stone,Eat In Kitchen,Garbage Disposal,Gas Range/Cooktop,Microwave,Oven Built-in,Updated Kitchen,Other
Rooms Total: 12
Fireplace Features: Dining Room, Family Room, Gas, Living Room, Recreation Room

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 4,011

Exterior Features
Patio And Porch Features: Covered
Exterior Features: Back Yard, Front Yard, Side Yard

Pool Information
Pool Features: Community

Property Information
Living Area: 4011
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 2003

Lot Information
Lot Size Square Feet: 11629
Lot Size Area: 0.27
Lot Size Units: Acres
Lot Size Acres: 0.27
Lot Features: Premium Lot

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Ceiling Fan(s), Central Air

Location

Homeowners Association Information
Has Association
Association Amenities: Pool, Gated
Association Name: LAKESHORE HOA
Association Fee: $205
Association Fee Includes: Common Area Maint, Management Fee, Reserves, Security/Gate Fee
Association Fee Frequency: Monthly

Public facts

Beds: 5
Baths: 4.0
Sq. Ft.: 4,011
Stories: 2.0
Parking Spaces: 2
Basement: No
Accessible: No
Lot Size: 0.27 acres
Style: Single Family Residential
Year Built: 2003
Year Renovated: 2004
County: Contra Costa County
APN: 0114210123
HOA Dues: $205/month
Garage: Yes
Features: Pool

Home facts updated by owner on Jul 5, 2021

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 • 4.6mi

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

$977,000 – $1.18M

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Nearby similar homes

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New listings for sale in 94505

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NEW 31 HRS AGO

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NEW 1 DAY AGO

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OPEN SUN, 12PM TO 2PM

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Home values near 3471 Keystone Loop

Data from public records.

Address	Redfin Estimate
3435 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 4011 Sq. Ft.	$846,595
3453 Keystone Loop, Discovery Bay, CA 3 Beds \| 3 Baths \| 3518 Sq. Ft.	$787,877

Address	Redfin Estimate
3441 Keystone Loop, Discovery Bay, CA 4 Beds \| 2 Baths \| 2033 Sq. Ft.	$747,390
3459 Keystone Loop, Discovery Bay, CA 4 Beds \| 2.5 Baths \| 3030 Sq. Ft.	$797,577

Address	Redfin Estimate
3447 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 2562 Sq. Ft.	$671,515
3465 Keystone Loop, Discovery Bay, CA 4 Beds \| 4 Baths \| 4088 Sq. Ft.	$835,043

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2020. This data may not show owner updates. 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

Sale history for 3471 Keystone Loop

Tax history for 3471 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 3471 Keystone Loop

More real estate resources