Off market jan 2025 for $878K

$883,940

Est. refi paymentEst. refi $6,869/mo

•

4,088

sq ft

3557 Keystone, Discovery Bay, CA 94505

About this home

Single-familyProperty Type

2004Year Built

6,950 sq ftLot Size

3 car garageParking

Listed by Angelica Mia Pokrywka •DRE #02085968 • WR Properties

Bought with Jennifer Biczkow •DRE #02086289 • Corcoran Icon Properties

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #41084159

Redfin Estimate

$883,940

$5,940 since sold in January 2025$2,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 16.5% higher than the average sale price ($759K) of 6 comparable homes.

SOLD OCT 7, 2026
$765,000
A
5 beds4 baths3,953 sq ft
6217 Crystal Springs Cir, 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 APR 3, 2026
$720,000
D
4 beds3.5 baths3,333 sq ft
5675 Arcadia Cir, Discovery Bay, CA 94505
SOLD OCT 30, 2026
$760,000
E
4 beds3.5 baths3,102 sq ft
6391 Crystal Springs Cir, Discovery Bay, CA 94505
SOLD BY REDFIN APR 14, 2026
$818,000
F
5 beds4 baths4,011 sq ft
3432 Keystone Loop, Discovery Bay, CA 94505

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Earn from this home

Sell

$157,152

Est. take-home

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Refinance

Est. cash available

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Rent

$4,186/mo

Redfin rental estimate

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Market trends in 94505, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

97.8%

+0.1% MoM

Median sale price

$745K

$20K MoM

Avg. days on market

46d

13 days MoM

Recently sold homes

2 MoM

New listings for sale

$949,000
3 beds2 baths1,773 sq ft
1814 Dune Point Way, Discovery Bay, CA 94505
$1,350,000
4 beds2.5 baths2,865 sq ft
2043 Windward Pt, Discovery Bay, CA 94505
$689,000
4 beds3 baths2,528 sq ft
3158 Castle Rock Loop, Discovery Bay, CA 94505
$1,399,988
3 beds3 baths2,823 sq ft
3973 Bolinas Pl, Discovery Bay, CA 94505
VIDEO TOUR
$1,045,000
3 beds3 baths1,524 sq ft
1466 Marlin Pl, Discovery Bay, CA 94505
$949,000
5 beds3 baths3,016 sq ft
5510 Lanai Ct, Discovery Bay, CA 94505
$629,000
3 beds2.5 baths1,706 sq ft
3729 Catamaran Ct, Discovery Bay, CA 94505
LISTED BY REDFIN
$775,000
4 beds3 baths2,695 sq ft
8586 Pinehollow Cir, Discovery Bay, CA 94505
$599,000
3 beds2 baths1,484 sq ft
3583 Sailboat Dr, Discovery Bay, CA 94505
See all

Provided by Redfin

Redfin agents who toured

The kitchen has an stone countertops, an island, stainless appliances, gas range and recessed lights. There’s also a 3 car range. The living room has a ceiling fan and fireplace. The downstairs has laminate floors and the upstairs has carpet and a...
4 years ago• May not reflect the current state of the home
Terry Kreuz
Redfin Associate agent

Sale history for 3557 Keystone

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #41084159

Jan 30, 2025

Sold

$878,000

$215/sq ft

Jan 30, 2025

Listed

bridgeMLS, Bay East AOR, or Contra Costa AOR #41067473

Dec 16, 2024

Listing Removed

—

Public Records

Mar 3, 2023

Sold

$850,000

$208/sq ft

Public Records

Oct 19, 2020

Sold

$755,000

$185/sq ft

Public Records

Nov 22, 2016

Sold

$600,000

$147/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40374202

Dec 22, 2008

Listing Removed

—

Nov 22, 2008

Listing Removed

—

Nov 5, 2008

Listing Removed

—

Oct 21, 2008

Listing Removed

—

Public Records

Jun 28, 2006

Sold

$838,000

$205/sq ft

Public Records

Oct 29, 1998

Sold

$2,583,227

$632/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$12,161 (+3.0%)

$163,200 + $732,360

$895,560

2025

$11,802 (+4.7%)

$163,200 + $732,360

$895,560

2024

$11,276 (+7.6%)

$130,050 + $754,290

$884,340

2023

$10,477 (+1.7%)

$127,500 + $739,500

$867,000

2022

$10,307 (+2.4%)

$104,040 + $681,462

$785,502

2021

$10,063 (+38.9%)

$102,000 + $668,100

$770,100

2020

$7,244 (+1.1%)

$100,000 + $655,000

$755,000

2019

$7,166 (−13.7%)

$95,508 + $541,108

$636,616

2018

$8,301 (+2.0%)

$93,636 + $530,499

$624,135

2017

$8,135 (+40.7%)

$90,000 + $509,900

$599,900

2016

$5,783 (+2.8%)

$90,000 + $509,900

$599,900

2015

$5,624 (+1.9%)

$32,632 + $375,297

$407,929

2014

$5,517 (+0.8%)

$31,513 + $362,419

$393,932

2013

$5,471 (+12.8%)

$31,513 + $362,419

$393,932

2012

$4,850 (+0.3%)

$31,371 + $360,782

$392,153

2011

$4,836 (−4.7%)

$26,879 + $309,121

$336,000

2010

$5,073 (+3.5%)

$26,879 + $309,121

$336,000

2009

$4,903 (−26.8%)

$29,319 + $337,181

$366,500

2008

$6,698

$65,000 + $285,000

$350,000

Tax history for 3557 Keystone

Year

Property tax

Land + Additions

Assessment*

2026

$12,161 (+3.0%)

$163,200 + $732,360

$895,560

2025

$11,802 (+4.7%)

$163,200 + $732,360

$895,560

2024

$11,276 (+7.6%)

$130,050 + $754,290

$884,340

2023

$10,477 (+1.7%)

$127,500 + $739,500

$867,000

2022

$10,307 (+2.4%)

$104,040 + $681,462

$785,502

2021

$10,063 (+38.9%)

$102,000 + $668,100

$770,100

2020

$7,244 (+1.1%)

$100,000 + $655,000

$755,000

2019

$7,166 (−13.7%)

$95,508 + $541,108

$636,616

2018

$8,301 (+2.0%)

$93,636 + $530,499

$624,135

2017

$8,135 (+40.7%)

$90,000 + $509,900

$599,900

2016

$5,783 (+2.8%)

$90,000 + $509,900

$599,900

2015

$5,624 (+1.9%)

$32,632 + $375,297

$407,929

2014

$5,517 (+0.8%)

$31,513 + $362,419

$393,932

2013

$5,471 (+12.8%)

$31,513 + $362,419

$393,932

2012

$4,850 (+0.3%)

$31,371 + $360,782

$392,153

2011

$4,836 (−4.7%)

$26,879 + $309,121

$336,000

2010

$5,073 (+3.5%)

$26,879 + $309,121

$336,000

2009

$4,903 (−26.8%)

$29,319 + $337,181

$366,500

2008

$6,698

$65,000 + $285,000

$350,000

*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

6,950 Sq. Ft.

Year renovated

2004

Sq. Ft.

4,088

Year built

2003

Style

Single Family Residential

County

Contra Costa County

APN

0114210263

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 30, 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

Dec 4, 2023 • Final

Building - residential mechanical

Replace a five ton heating and air conditioning system with a new furnace and coil. A home energy rating inspection may be required at the final inspection.

HVAC

Sep 22, 2016 • Final

Building - residential plumbing

Install a seismic shut-off valve on a gas meter.

Gas

Plumbing

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: 3
Covered Spaces: 3
Parking Features: Electric Vehicle Charging Station(s), Garage Faces Front

Interior

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

Interior Features
Interior Features: Den, Dining Area, Family Room, Pantry, Wet Bar
Appliances: Gas Range, Oven, Refrigerator, Water Filter System
Laundry Features: Cabinets, Sink
Upper Level Features: 4 Bedrooms, 3 Baths, Primary Bedrm Retreat, Loft
Street Level Features: 1 Bedroom, 1 Bath, Main Entry
Fireplaces Total: 2
Has Fireplace
Flooring: Tile, Carpet

Room Information
Kitchen Features: Counter - Stone,Eat In Kitchen,Gas Range/Cooktop,Island,Oven Built-in,Pantry,Refrigerator,Wet Bar
Rooms Total: 11
Room Type: Den, Dining Area, Family Room
Fireplace Features: Family Room, Master Bedroom

Exterior

Building Information
Construction Materials: Stone, Stucco
Building Area Total: 4,088

Exterior Features
Exterior Features: Back Yard, Dog Run, Front Yard, Sprinklers Automatic
Fencing: Fenced

Pool Information
Pool Features: Community

Property Information
Living Area: 4088
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 2004

Lot Information
Lot Size Square Feet: 6950
Lot Size Area: 0.16
Lot Size Units: Acres
Lot Size Acres: 0.16

Utilities

Heating & Cooling
Has Heating
Heating: Zoned
Cooling: Whole House Fan

Location

Homeowners Association Information
Has Association
Association Amenities: Greenbelt, Pool, Gated, Game Court Exterior, Guest Parking
Association Name: LAKESHORE HOA
Association Fee: $230
Association Fee Includes: Reserves, Management Fee, Common Area Maint
Association Fee Frequency: Monthly

Public facts

Beds: 4
Baths: 4.0
Sq. Ft.: 4,088
Stories: 2.0
Lot Size: 6,950 square feet
Style: Single Family Residential
Year Built: 2003
Year Renovated: 2004
County: Contra Costa County
APN: 0114210263

Home facts updated by county records on Oct 30, 2026

Around this home

Schools

K - 12
Preschool & daycare

Timber Point Elementary School

Public K-5 • Assigned • 0.4mi

6/10

Excelsior Middle School

Public 6-8 • Assigned • 2.7mi

4/10

Liberty High School

Public 9-12 • Assigned • 4.4mi

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

6 days above 102° expected this year, 13 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

$840,000 – $1.02M

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Home values near 3557 Keystone

Data from public records.

Address	Redfin Estimate
3527 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 4011 Sq. Ft.	$849,506
3545 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 3517 Sq. Ft.	$790,467
3546 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 2562 Sq. Ft.	$728,922
3526 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 4088 Sq. Ft.	$811,050
3410 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 2562 Sq. Ft.	$701,008
3639 Otter Brook Loop, Discovery Bay, CA 3 Beds \| 4 Baths \| 3097 Sq. Ft.	$697,120
3627 Otter Brook Loop, Discovery Bay, CA 5 Beds \| 3 Baths \| 3435 Sq. Ft.	$843,140

Address	Redfin Estimate
3533 Keystone Loop, Discovery Bay, CA 5 Beds \| 3 Baths \| 2562 Sq. Ft.	$772,710
3551 Keystone Loop, Discovery Bay, CA 4 Beds \| 2.5 Baths \| 3030 Sq. Ft.	$738,470
3538 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 4011 Sq. Ft.	$928,094
3424 Keystone Loop, Discovery Bay, CA 4 Beds \| 4 Baths \| 3517 Sq. Ft.	$833,286
3404 Keystone Loop, Discovery Bay, CA 3 Beds \| 2 Baths \| 2033 Sq. Ft.	$691,794
3645 Otter Brook Loop, Discovery Bay, CA 5 Beds \| 3 Baths \| 3536 Sq. Ft.	$809,835
3632 Otter Brook Loop, Discovery Bay, CA 3 Beds \| 4 Baths \| 3097 Sq. Ft.	$766,881

Address	Redfin Estimate
3539 Keystone Loop, Discovery Bay, CA 4 Beds \| 2 Baths \| 2033 Sq. Ft.	$687,404
3554 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 3030 Sq. Ft.	$814,126
3532 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 3517 Sq. Ft.	$780,989
3416 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 4088 Sq. Ft.	$726,268
3760 Otter Brook Loop, Discovery Bay, CA 4 Beds \| 4 Baths \| 3732 Sq. Ft.	$857,372
3754 Otter Brook Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 3347 Sq. Ft.	$800,177
3638 Otter Brook Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 3272 Sq. Ft.	$850,341

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2025. 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 3557 Keystone

Tax history for 3557 Keystone

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 3557 Keystone

More real estate resources