2. 3405 Keystone Loop Discovery Bay CA
3405 Keystone Loop Discovery Bay CA

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3405 Keystone Loop Discovery Bay, CA

3405 Keystone Loop Discovery Bay, CA 94505 was built in 2003 and last sold for $850,000. The property has a lot size of 7,100 Sq Ft lot and is listed as a Single Family. The property is currently not for sale. Current estimates place the value near 821,000, reflecting a -9% change over the past year, with 4 beds, 2.5 baths, and approximately 3,030 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

$850,000
Last sold Jul 19, 2021
4
Beds
2.5
Baths
3,030
Sqft
Off Market
$821,000 estimated value
Built in 2003
$271/sqft
7,100 lot sqft
$265 HOA fees

Property characteristics

Property type
Residential
Zoning type
Single Family
APN
011-421-001
Parking
2
Subdivision
Subdivision 8430
Cooling
Central
Stories
2

Property History

Over the last 12 months, the sales price of 3405 Keystone Loop Discovery Bay, CA 94505 has decreased by -9%.

Price History

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Year Price Price/Sq Ft
2026 $ 806,000 -9 % $ 266
2025 $ 887,000 5 % $ 293
2024 $ 841,000 1 % $ 278
2023 $ 826,000 -4 % $ 273
2022 $ 861,000 10 % $ 284
2021 $ 780,000 ---- $ 257

Tax History

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Year Taxes Assesments
2026 ---- $ 770,000
2025 $ 10,878 3 %
2024 $ 10,551 2 % $ 800,000
2023 $ 10,341 -6 % $ 780,000
2022 $ 11,102 ---- $ 850,000
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Owner

Derek Welch Derek James Welch , Age 45

Lives at 2443 Cherry Hills Dr, Discovery Bay, CA 94505-1421
Relatives: Derek Welch, James Welch, Michael Welch, Nicklyn Welch, Rae Welch, Alex Nguyen, Alexander Nguyen, Anhngoc Nguyen
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People Living at 3405 Keystone Loop Discovery Bay, CA

Derek Welch Derek James Welch , Age 45

Lives at 2443 Cherry Hills Dr, Discovery Bay, CA 94505-1421 Discovery Bay CA 94505 2443 Cherry Hills Dr
Prior addresses: 539 Adeline Ave, San Jose, CA 95136-4829 San Jose CA 95136 539 Adeline Ave 1725 Rogers Ave, Ste N, San Jose, CA 95112-1111 San Jose CA 95112 1725 Rogers Ave, Ste N 3064 Mclaughlin Ave, San Jose, CA 95121-2422 San Jose CA 95121 3064 Mclaughlin Ave
Relatives: Derek Welch, James Welch, Michael Welch, Nicklyn Welch, Rae Welch, Alex Nguyen, Alexander Nguyen, Anhngoc Nguyen
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Kathrina Papio Kathrina T Papio , Age 50

Lives at 3405 Keystone Loop, Discovery Bay, CA 94505-2320 Discovery Bay CA 94505 3405 Keystone Loop
Prior addresses: 5054 Prairie Way, Antioch, CA 94531-8419 Antioch CA 94531 5054 Prairie Way 4441 Buckskin Dr, Antioch, CA 94531-7464 Antioch CA 94531 4441 Buckskin Dr 119 Rockwood Dr, South San Francisco, CA 94080-5741 South San Francisco CA 94080 119 Rockwood Dr
Relatives: Pedro Papio, Edgard Papio, Gemma Papio, Jason Papio, Jhun Papio, Michael M, Nelia Papio, Carmen Macawile
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Nicklyn Welch Nicklyn J Welch , Age 79

Lives at 2443 Cherry Hills Dr, Discovery Bay, CA 94505-1421 Discovery Bay CA 94505 2443 Cherry Hills Dr
Prior addresses: 575 W Hacienda Ave, Campbell, CA 95008-6503 Campbell CA 95008 575 W Hacienda Ave 730 Winding Creek Ter, Brentwood, CA 94513-1824 Brentwood CA 94513 730 Winding Creek Ter
Relatives: Michael Welch, Derek Welch, James Welch, Rae Welch, Alexander Nguyen, Anhngoc Nguyen, Ann Welch
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Michael Welch Michael Ray Welch , Age 74

Lives at 3600 W Grant Line Rd, Apt 711, Tracy, CA 95304-9649 Tracy CA 95304 3600 W Grant Line Rd, Apt 711
Prior addresses: 575 W Hacienda Ave, Campbell, CA 95008-6503 Campbell CA 95008 575 W Hacienda Ave 2443 Cherry Hills Dr, Discovery Bay, CA 94505-1421 Discovery Bay CA 94505 2443 Cherry Hills Dr 3405 Keystone Loop, Discovery Bay, CA 94505-2320 Discovery Bay CA 94505 3405 Keystone Loop
Relatives: Nicklyn Welch, Ann Welch, Charles Welch, Danielle Stewart, Derek Welch, James Welch, Marian Welch, Rae Welch
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Pedro Papio Pedro M Papio , Age 52

Lives at 3405 Keystone Loop, Discovery Bay, CA 94505-2320 Discovery Bay CA 94505 3405 Keystone Loop
Prior addresses: 5054 Prairie Way, Antioch, CA 94531-8419 Antioch CA 94531 5054 Prairie Way 4441 Buckskin Dr, Antioch, CA 94531-7464 Antioch CA 94531 4441 Buckskin Dr 119 Rockwood Dr, South San Francisco, CA 94080-5741 South San Francisco CA 94080 119 Rockwood Dr
Relatives: Kathrina Papio, Edgard Papio, Gemma Papio, Jason Papio, Jhun Papio, Michael M, Nelia Papio, Pedro Papio, Carmen Macawile
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Jhun Papio Jhun Kendrick Papio , Age 29

Lives at 2448 Cana Dr, Shasta Lake, CA 96019-9129 Shasta Lake CA 96019 2448 Cana Dr
Prior addresses: 3405 Keystone Loop, Discovery Bay, CA 94505-2320 Discovery Bay CA 94505 3405 Keystone Loop 5054 Prairie Way, Antioch, CA 94531-8419 Antioch CA 94531 5054 Prairie Way 4441 Buckskin Dr, Antioch, CA 94531-7464 Antioch CA 94531 4441 Buckskin Dr
Relatives: Jason Papio, Kathrina Papio, Nelia Papio, Pedro Papio, Summer Pagan, Edgard Papio, Gemma Papio, Jan Papio, Michael M
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Brandon Huynh Brandon A Huynh , Age 27

Lives at 165 Blossom Hill Rd, Spc 360, San Jose, CA 95123-5939 San Jose CA 95123 165 Blossom Hill Rd, Spc 360
Prior addresses: 3405 Keystone LOOP, Discovery Bay, CA 94505-2320 Discovery Bay CA 94505 3405 Keystone LOOP
Relatives: Cuong Huynh, Hung Huynh, Anthony Huynh, Cindy Nguyen, Huong Nguyen, Jennifer Huynh, Kieu Pham, Sang Huynh
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Neighbors

3411 Keystone Loop
Discovery Bay, CA
View Property Report
3365 Lookout Point Loop
Discovery Bay, CA
View Property Report
3359 Lookout Point Loop
Discovery Bay, CA
View Property Report
3417 Keystone Loop
Discovery Bay, CA
View Property Report

FAQs

Who lives at 3405 Keystone Loop, Discovery Bay, CA 94505?
According to our records, the current person living in 3405 Keystone Loop is Derek Welch.
Is this property currently for sale?
The property is not for sale and last sold for $850,000 on Jul 19, 2021. 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 $821,000, reflecting a -9% 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 3,030 sq ft of living space on a 7,100 sq ft lot, built in 2003 and classified as a Single Family.
What nearby properties can I compare this to?
Nearby homes include 3411 Keystone Loop, 3365 Lookout Point Loop, and 3359 Lookout Point Loop, each with its own property report to help compare size, value, and residents.