2. 3521 Keystone Loop Discovery Bay CA
3521 Keystone Loop Discovery Bay CA

Report Results for

3521 Keystone Loop Discovery Bay, CA

3521 Keystone Loop Discovery Bay, CA 94505 was built in 2003 and last sold for $900,000. The property has a lot size of 6,500 Sq Ft lot and is listed as a Single Family. The property is currently not for sale. Current estimates place the value near 827,000, reflecting a -5% change over the past year, with 5 beds, 4 baths, and approximately 4,088 sq ft of living space. If you are looking to buy or rent a property, use USPhoneBook's property database to avoid rental scams, understand tax liabilities, and get a sense of the property's value over time. You can also check out the neighborhood section and see nearby homes, last sold for prices, tax records and more.
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Public Facts

$900,000
Last sold May 28, 2026
5
Beds
4
Baths
4,088
Sqft
Off Market
$827,000 estimated value
Built in 2003
$202/sqft
6,500 lot sqft
$265 HOA fees

Property characteristics

Property type
Residential
Zoning type
Single Family
APN
011-421-020
Parking
2
Subdivision
Subdivision 8430
Cooling
Central
Stories
2

Property History

Over the last 12 months, the sales price of 3521 Keystone Loop Discovery Bay, CA 94505 has decreased by -5%.

Price History

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Year Price Price/Sq Ft
2026 $ 834,000 -5 % $ 204
2025 $ 879,000 -2 % $ 215
2024 $ 899,000 2 % $ 220
2023 $ 878,000 -6 % $ 215
2022 $ 936,000 32 % $ 229
2021 $ 706,000 ---- $ 173

Tax History

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Year Taxes Assesments
2026 ---- $ 831,000
2025 $ 11,404 3 %
2024 $ 11,070 0 % $ 841,000
2023 $ 11,037 13 % $ 837,000
2022 $ 9,695 ---- $ 714,000
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Owner

Howard Lewis Howard B Lewis , Age 84

Lives at 5535 E Saint Francis Cir, Loomis, CA 95650-7922
Relatives: Dianna Lewis, Debra Lewis, Diane Cathey, Howard Lewis, Lindsey Stanley, Adrian Hill, Betty Roth, Chelsea Showalter
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People Living at 3521 Keystone Loop Discovery Bay, CA

Howard Lewis Howard B Lewis , Age 84

Lives at 5535 E Saint Francis Cir, Loomis, CA 95650-7922 Loomis CA 95650 5535 E Saint Francis Cir
Prior addresses: 2427 Greenwich Ct, Rocklin, CA 95765-4927 Rocklin CA 95765 2427 Greenwich Ct 3521 Keystone LOOP, Byron, CA 94505-2322 Byron CA 94505 3521 Keystone LOOP 3521 Keystone Loop, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone Loop
Relatives: Dianna Lewis, Debra Lewis, Diane Cathey, Howard Lewis, Lindsey Stanley, Adrian Hill, Betty Roth, Chelsea Showalter
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Brian Ilg Brian James Ilg , Age 49

Lives at 23452 Via Guadix, Mission Viejo, CA 92691-2241 Mission Viejo CA 92691 23452 Via Guadix
Prior addresses: 3521 Keystone Loop, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone Loop 520 Charlestown Rd, Hampton, NJ 08827-2540 Hampton NJ 08827 520 Charlestown Rd 2301 Orchard Ter, Linden, NJ 07036-3724 Linden NJ 07036 2301 Orchard Ter
Relatives: Cathie Ilg, Cheryl Ilg, Jaimee Ilg, James Ilg, Marguerite Smart, Patrica Ilg, Pietra Ilg, Victoria Ilg, Angelo Fiorenza
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Yong Mei Yong Bin Mei , Age 40

Lives at 225 Amherst ST, San Francisco, CA 94134-1305 San Francisco CA 94134 225 Amherst ST
Prior addresses: 3521 Keystone Loop, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone Loop 9104 Golf Canyon Dr, Patterson, CA 95363-8910 Patterson CA 95363 9104 Golf Canyon Dr 52 Niagara Ave, San Francisco, CA 94112-3335 San Francisco CA 94112 52 Niagara Ave
Relatives: Daan Mei, Yong Mei
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Dianna Lewis Dianna Gale Lewis , Age 82

Lives at 2427 Greenwich Ct, Rocklin, CA 95765-4927 Rocklin CA 95765 2427 Greenwich Ct
Prior addresses: 3521 Keystone Loop, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone Loop 13995 Farm Road 195, Bagwell, TX 75412-3837 Bagwell TX 75412 13995 Farm Road 195 4327 Gairlock CT, Antelope, CA 95843-5114 Antelope CA 95843 4327 Gairlock CT
Relatives: Howard M, Adrian Hill, Dakota Hill, Debra Lewis, Diana Hill, Diane Cathey, Dianna Hill
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Julie Tang Julie Lingxian Tang , Age 63

Lives at 6607 Chatham Cir, Rochester Hills, MI 48306-4383 Rochester Hills MI 48306 6607 Chatham Cir
Prior addresses: 3521 Keystone LOOP, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone LOOP 2356 Claymont Dr, Troy, MI 48098-2426 Troy MI 48098 2356 Claymont Dr
Relatives: Keith Liu, Huixin Liu, Jennifer Liu, Katherine Liu, Qi Liu, David Barnocki, Fang Liu, Hui Liu, Jill Barnocki
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Cathie Ilg Cathie F Ilg , Age 42

Lives at 3521 Keystone Loop, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone Loop
Prior addresses: 23452 Via Guadix, Mission Viejo, CA 92691-2241 Mission Viejo CA 92691 23452 Via Guadix 2301 Orchard Ter, Linden, NJ 07036-3724 Linden NJ 07036 2301 Orchard Ter 49 Meadow Ave, Chester, NY 10918-1212 Chester NY 10918 49 Meadow Ave
Relatives: Brian Ilg, Antonio Pereira, Edgar Pereira, James Ilg, Maria Pereira, Patrica Ilg, Pietra Ilg, Victoria Ilg, Angela Delrusso
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Katrina Faulhaber Katrina R Faulhaber , Age 23

Lives at 630 3rd Ave SE, Dickinson, ND 58601-6015 Dickinson ND 58601 630 3rd Ave SE
Prior addresses: 3521 Keystone LOOP, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone LOOP
Relatives: Gerald Faulhaber, Grace Faulhaber, Madison Faulhaber, Madisyn Faulhaber, Marvin Faulhaber, Melinda Faulhaber, Terry Faulhaber, Wendline Faulhaber, Abigail Faulhaber
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Erin Hicks Erin E Hicks , Age 46

Lives at 225 Sheridan LN, Peachtree City, GA 30269-5779 Peachtree City GA 30269 225 Sheridan LN
Prior addresses: 3003 Rivermeade DR NW, Atlanta, GA 30327-2014 Atlanta GA 30327 3003 Rivermeade DR NW 3521 Keystone LOOP, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone LOOP 98 Boyington BLVD, Waynesboro, VA 22980-6531 Waynesboro VA 22980 98 Boyington BLVD
Relatives: John Hicks, Alison Perkins, Deborah Reynolds, Donald Coffey, Elija Hicks, Helen Coffey, Ralph Coffey, Terry Crummett, Aaron Crummett
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John Hicks John B Hicks , Age 47

Lives at 225 Sheridan Ln, Peachtree City, GA 30269-5779 Peachtree City GA 30269 225 Sheridan Ln
Prior addresses: 3003 Rivermeade DR NW, Atlanta, GA 30327-2014 Atlanta GA 30327 3003 Rivermeade DR NW 3521 Keystone Loop, Discovery Bay, CA 94505-2322 Discovery Bay CA 94505 3521 Keystone Loop 98 Boyington Blvd, Waynesboro, VA 22980-6531 Waynesboro VA 22980 98 Boyington Blvd
Relatives: Erin Hicks, Bradley Hicks, David Hicks, Diana Hicks, Elija Hicks, Rebecca Meyer, Alia Hicks, Alison Perkins, Brian Meyer
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Neighbors

3527 Keystone Loop
Discovery Bay, CA
View Property Report
3515 Keystone Loop
Discovery Bay, CA
View Property Report
3651 Otter Brook Loop
Discovery Bay, CA
View Property Report
3645 Otter Brook Loop
Discovery Bay, CA
View Property Report

FAQs

Who lives at 3521 Keystone Loop, Discovery Bay, CA 94505?
According to our records, the current person living in 3521 Keystone Loop is Howard Lewis.
Is this property currently for sale?
The property is not for sale and last sold for $900,000 on May 28, 2026. Use USPhoneBook to review nearby listings or compare similar homes in the area.
What is the estimated value of this property?
The estimated value is $827,000, reflecting a -5% change over the past year. You can explore price history and tax records to see how the value has changed over time.
How big is this property?
It features approximately 4,088 sq ft of living space on a 6,500 sq ft lot, built in 2003 and classified as a Single Family.
What nearby properties can I compare this to?
Nearby homes include 3527 Keystone Loop, 3515 Keystone Loop, and 3651 Otter Brook Loop, each with its own property report to help compare size, value, and residents.