OFF MARKET

Off Market Sep 2019 for $585K

$794,004

Est. refi paymentEst. refi $4,625/mo

•

3,517

sq ft

3532 Keystone Loop, Discovery Bay, CA 94505

About this home

Single-familyProperty Type

2003Year Built

6,500 sq ftLot Size

$226Est. Price/Sq.Ft.

3 car garageParking

Listed by Michael Mason •DRE #00310192 • Shangri-La Dreamhome Realty Inc

Contact: 408-489-9628

Bought with Donald Farrow •DRE #01771241 • MARPLES & ASSOCIATES REALTORS

Redfin checked: a few seconds ago

•Source:MLSListings #ML81732748

Redfin Estimate

$794,004

$209K since sold in September 2019$5,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 8.3% higher than the average sale price ($733K) of 6 comparable homes.

SOLD APR 15, 2026
$738,398
A
4 beds3 baths2,335 sq ft
1145 Bradbury Dr, Discovery Bay, CA 94505
SOLD APR 30, 2026
$750,000
B
4 beds3 baths3,517 sq ft
716 Seminole Ct, Discovery Bay, CA 94505
SOLD JUN 18, 2026
$690,000
C
4 beds3 baths2,302 sq ft
2072 Bridgeport Loop, Discovery Bay, CA 94505
SOLD MAY 19, 2026
$800,000
D
4 beds3 baths2,913 sq ft
2350 Winchester Loop, Discovery Bay, CA 94505
SOLD AUG 18, 2026
$680,000
E
4 beds2.5 baths2,613 sq ft
2466 Yosemite Way, Discovery Bay, CA 94505
BOUGHT WITH REDFIN JUN 15, 2026
$740,000
F
4 beds3.5 baths3,097 sq ft
327 Mendocino Way, Discovery Bay, CA 94505
Iron Valley Real Estate NorCal, Iron Valley Real Estate NorCal

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Earn from this home

Sell

$349,875

Est. take-home

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Refinance

Est. cash available

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Rent

$3,870/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

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Coldwell Banker Realty, Coldwell Banker Realty
COMING SOON
$799,000
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4681 Spinnaker Way, Discovery Bay, CA 94505
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OPEN SAT, 1PM TO 3PM
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3524 Sailboat Dr, Discovery Bay, CA 94505
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See all

Provided by Redfin

Sale history for 3532 Keystone Loop

Date

Event

Price

MLSListings #ML81732748

Sep 16, 2019

Sold

$585,000

$166/sq ft

Jun 29, 2019

Pending

—

Apr 23, 2019

Price Changed

$608,888

$173/sq ft

Dec 5, 2018

Listed

$650,000

$185/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40361575

Jul 8, 2009

Sold

$312,000

$89/sq ft

Jun 4, 2009

Listing Removed

—

Feb 13, 2009

Price Changed

$309,000

$88/sq ft

Oct 24, 2008

Price Changed

$319,000

$91/sq ft

Oct 14, 2008

Price Changed

$349,000

$99/sq ft

Aug 8, 2008

Listed

$399,000

$113/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40243895

Mar 7, 2007

Listing Removed

—

Feb 22, 2007

Listed

bridgeMLS, Bay East AOR, or Contra Costa AOR #40199361

Dec 1, 2006

Listing Removed

—

Oct 16, 2006

Price Changed

Sep 18, 2006

Price Changed

Aug 17, 2006

Listed

Year

Property tax

Land + Additions

Assessment*

2025

$9,198 (+5.0%)

$167,325 + $485,248

$652,573

2024

$8,758 (+1.6%)

$164,045 + $475,734

$639,779

2023

$8,623 (+1.7%)

$160,829 + $466,406

$627,235

2022

$8,482 (+2.4%)

$157,676 + $457,261

$614,937

2021

$8,284 (+0.4%)

$154,585 + $448,296

$602,881

2020

$8,249 (+42.3%)

$151,554 + $439,506

$591,060

2019

$5,796 (+4.1%)

$150,000 + $435,000

$585,000

2018

$5,568 (+2.3%)

$46,860 + $314,163

$361,023

2017

$5,443 (+6.1%)

$45,042 + $301,964

$347,006

2016

$5,131 (+3.1%)

$45,042 + $301,964

$347,006

2015

$4,977 (+2.0%)

$44,159 + $296,044

$340,203

2014

$4,881 (+0.9%)

$42,644 + $285,886

$328,530

2013

$4,836 (+4.6%)

$42,644 + $285,886

$328,530

2012

$4,625 (+0.3%)

$42,452 + $284,594

$327,046

2011

$4,611 (+3.0%)

$40,045 + $268,455

$308,500

2010

$4,475 (−3.2%)

$40,045 + $268,455

$308,500

2009

$4,622 (−23.3%)

$40,500 + $271,500

$312,000

2008

$6,023

$70,265 + $254,235

$324,500

Tax history for 3532 Keystone Loop

Year

Property tax

Land + Additions

Assessment*

2025

$9,198 (+5.0%)

$167,325 + $485,248

$652,573

2024

$8,758 (+1.6%)

$164,045 + $475,734

$639,779

2023

$8,623 (+1.7%)

$160,829 + $466,406

$627,235

2022

$8,482 (+2.4%)

$157,676 + $457,261

$614,937

2021

$8,284 (+0.4%)

$154,585 + $448,296

$602,881

2020

$8,249 (+42.3%)

$151,554 + $439,506

$591,060

2019

$5,796 (+4.1%)

$150,000 + $435,000

$585,000

2018

$5,568 (+2.3%)

$46,860 + $314,163

$361,023

2017

$5,443 (+6.1%)

$45,042 + $301,964

$347,006

2016

$5,131 (+3.1%)

$45,042 + $301,964

$347,006

2015

$4,977 (+2.0%)

$44,159 + $296,044

$340,203

2014

$4,881 (+0.9%)

$42,644 + $285,886

$328,530

2013

$4,836 (+4.6%)

$42,644 + $285,886

$328,530

2012

$4,625 (+0.3%)

$42,452 + $284,594

$327,046

2011

$4,611 (+3.0%)

$40,045 + $268,455

$308,500

2010

$4,475 (−3.2%)

$40,045 + $268,455

$308,500

2009

$4,622 (−23.3%)

$40,500 + $271,500

$312,000

2008

$6,023

$70,265 + $254,235

$324,500

*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

6,500 Sq. Ft.

Year renovated

2004

Sq. Ft.

3,517

Year built

2003

Style

Single Family Residential

County

Contra Costa County

APN

0114210305

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

Sep 26, 2018 • Final

Building - residential mechanical

Replace the air conditioning unit, coil, and furnace. The new system features a 16 SEER and 96 AFUE efficiency rating.

HVAC

Oct 9, 2003 • Final

Building/residential/r/new single family-duplex

New construction

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
Garage (Minimum): 3
Garage (Maximum): 3
Parking Description: Attached Garage
Garage Spaces: 3

Interior

Bedroom Information
# of Bedrooms (Minimum): 4
# of Bedrooms (Maximum): 4
Bedrooms: Walk-In Closet

Bathroom Information
# of Baths (Full): 3
Bathroom Description: Double Sinks, Primary - Oversized Tub, Primary (Stall Shower(s)), Shower and Tub, Tile

Room Information
Family Room Description: Kitchen/Family Room Combo
Dining Room Description: Dining Area in Family Room, Formal Dining Room

Interior Features
Flooring: Carpet, Hardwood, Tile

Fireplace Information
Has Fireplace
Fireplace Description: In Family Room
Fireplaces (Minimum): 1

Heating & Cooling Information
Cooling: Ceiling Fan, Central Forced Air
Heating: Central Forced Air

Exterior

Exterior Features
Roof: Tile

Building Information
Subclass: Single Family Home
Building Type: Detached
Concrete Slab

Property Features
Living Sq. Ft.: 3,517

Property Information
Property Primary ID: 616780

Lot Information
Lot Acres: 0.1492
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: P-1

Utilities

Utility Information
Sewer Septic: Sewer (Public)
Utilities: Public Utilities

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 2

HOA Information
Has HOA
Fees Include: Maintenance (Common Area)
HOA Fee: $185
HOA Fee Frequency: Monthly
HOA Name: Lakeshore HOA

School Information
Elementary School District: Byron Union Elementary
High School District: Liberty Union High

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 3,517
Stories: 2.0
Lot Size: 6,500 square feet
Style: Single Family Residential
Year Built: 2003
Year Renovated: 2004
County: Contra Costa County
APN: 0114210305

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Timber Point Elementary School

Public K-5 • Assigned • 0.4mi

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

$755,000 – $914,000

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Home values near 3532 Keystone Loop

Data from public records.

Address	Redfin Estimate
3411 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| - Sq. Ft.	$790,199
3429 Keystone Loop, Discovery Bay, CA 6 Beds \| 4 Baths \| 4285 Sq. Ft.	$923,012

Address	Redfin Estimate
3417 Keystone Loop, Discovery Bay, CA 4 Beds \| 3 Baths \| 2562 Sq. Ft.	$747,928
3515 Keystone Loop, Discovery Bay, CA 4 Beds \| 4 Baths \| 3518 Sq. Ft.	$822,726

Address	Redfin Estimate
3423 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 3517 Sq. Ft.	$815,482
3521 Keystone Loop, Discovery Bay, CA 5 Beds \| 4 Baths \| 4088 Sq. Ft.	$842,901

Property information provided by MLSListings when last listed in 2018. 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

Sale history for 3532 Keystone Loop

Tax history for 3532 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 3532 Keystone Loop

More real estate resources