2. 1812 Trinity Ct Antioch CA
1812 Trinity Ct Antioch CA

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1812 Trinity Ct Antioch, CA

1812 Trinity Ct Antioch, CA 94509 was built in 1974 and last sold for $253,000. The property has a lot size of 7,125 Sq Ft lot and is listed as a Single Family. The property is currently not for sale. Current estimates place the value near 562,000, reflecting a -7% change over the past year, with 4 beds, 2 baths, and approximately 1,810 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

$253,000
Last sold Feb 18, 2026
4
Beds
2
Baths
1,810
Sqft
Off Market
$562,000 estimated value
Built in 1974
$310/sqft
7,125 lot sqft

Property characteristics

Property type
Residential
Zoning type
Single Family
APN
051-272-020
Parking
2
Subdivision
Hillsdale Sub 4231
Heating
Forced air unit
Cooling
Central
Fireplaces
1
Stories
1

Property History

Over the last 12 months, the sales price of 1812 Trinity Ct Antioch, CA 94509 has decreased by -7%.

Price History

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Year Price Price/Sq Ft
2026 $ 550,000 -7 % $ 304
2025 $ 594,000 -4 % $ 328
2024 $ 623,000 3 % $ 344
2023 $ 601,000 -4 % $ 332
2022 $ 632,000 25 % $ 349
2021 $ 504,000 ---- $ 278

Tax History

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Year Taxes Assesments
2026 ---- $ 383,767
2025 $ 4,782 2 %
2024 $ 4,663 2 % $ 368,866
2023 $ 4,542 1 % $ 361,634
2022 $ 4,472 ---- $ 354,544
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Owner

Tristan Siebold Tristan Siebold , Age 78

Lives at 1812 Trinity Ct, Antioch, CA 94509-2131
Relatives: Danielle Guevara, Derek Siebold, Tristan Siebold, Andrew Rotter, Arthur Rotter, Bethany Lujan, Cheyenne Flores, David Flores
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People Living at 1812 Trinity Ct Antioch, CA

Tristan Siebold Tristan Siebold , Age 78

Lives at 1812 Trinity Ct, Antioch, CA 94509-2131 Antioch CA 94509 1812 Trinity Ct
Prior addresses: 1251 Homestead AVE, Apt 156, Walnut Creek, CA 94598-2803 Walnut Creek CA 94598 1251 Homestead AVE, Apt 156
Relatives: Danielle Guevara, Derek Siebold, Tristan Siebold, Andrew Rotter, Arthur Rotter, Bethany Lujan, Cheyenne Flores, David Flores
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Julene Carter Julene Carter

Lives at 1812 San Jose Dr, Antioch, CA 94509-4136 Antioch CA 94509 1812 San Jose Dr
Prior addresses: 1812 Trinity Ct, Antioch, CA 94509-2131 Antioch CA 94509 1812 Trinity Ct
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Derek Siebold Derek Matthew Siebold , Age 41

Lives at 1812 Trinity Ct, Antioch, CA 94509-2131 Antioch CA 94509 1812 Trinity Ct
Prior addresses: 341 San Joaquin Ave, Antioch, CA 94509-4872 Antioch CA 94509 341 San Joaquin Ave 756 Allbrook CT, Brentwood, CA 94513-1852 Brentwood CA 94513 756 Allbrook CT 1457 Willcrest Dr, Concord, CA 94521-3613 Concord CA 94521 1457 Willcrest Dr
Relatives: Bethany Lujan, Danielle Guevara, Paula Siebold, Tristan Siebold, Andrew Rotter, Arthur Rotter, Cheyenne Flores
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Cecilia Herrera Cecilia R Herrera , Age 79

Lives at 6312 Kearney Trl NW, TRN W, Albuquerque, NM 87120-3335 Albuquerque NM 87120 6312 Kearney Trl NW, TRN W
Prior addresses: 5746 Main ST, South Gate, CA 90280-7838 South Gate CA 90280 5746 Main ST 482 Maple AVE, San Bruno, CA 94066-4146 San Bruno CA 94066 482 Maple AVE 1419 Del Monte Trl SW, Albuquerque, NM 87121-8035 Albuquerque NM 87121 1419 Del Monte Trl SW
Relatives: Cecilia Herrera, Cheryl Herrera, Christopher Herrera, Claudine Herrera, Dionesia Herrera, Gisele Herrera, Laura Manzanares, Lawrence Herrera
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Tristan Siebold Tristan R Siebold , Age 28

Lives at 2440 Olympic Blvd, Walnut Creek, CA 94595-1508 Walnut Creek CA 94595 2440 Olympic Blvd
Prior addresses: 1251 Homestead Ave, Apt 156, Walnut Creek, CA 94598-2812 Walnut Creek CA 94598 1251 Homestead Ave, Apt 156 1812 Trinity Ct, Antioch, CA 94509-2131 Antioch CA 94509 1812 Trinity Ct
Relatives: Danielle Guevara, Derek Siebold, Tristan Siebold, Andrew Rotter, Arthur Rotter, Bethany Lujan, Cheyenne Flores, David Flores
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John Pattison John Erik Pattison , Age 68

Lives at 2261 NE 205th Ave, Fairview, OR 97024-9664 Fairview OR 97024 2261 NE 205th Ave
Prior addresses: 662 Woodward AVE, Detroit, MI 48226-3433 Detroit MI 48226 662 Woodward AVE 1222 E Main St, Silverton, OR 97381-1809 Silverton OR 97381 1222 E Main St
Relatives: Katherine Pattison, Brock Pattison, Cara James, Clyde Patterson, Dustin Pattison, Henry Patterson, Janet Gregor, Jeremy Pattison, Jessica Pattison
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Danielle Guevara Danielle Rotter Guevara , Age 57

Lives at 7959 Chaucer Dr, Weeki Wachee, FL 34607-2205 Weeki Wachee FL 34607 7959 Chaucer Dr
Prior addresses: 589 Rose Ave, Pleasanton, CA 94566-6528 Pleasanton CA 94566 589 Rose Ave Po Box 965, Pleasanton, CA 94566-0096 Pleasanton CA 94566 Po Box 965 20333 Fossil Valley LN, Cypress, TX 77433-5181 Cypress TX 77433 20333 Fossil Valley LN
Relatives: Andrew Rotter, Arthur Rotter, Cheyenne Flores, David Flores, Delonee Rotter, Derek Siebold, Edelmira Guevara
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Tonya Huffman Tonya Erli Huffman , Age 49

Lives at 13413 36th Avenue Ct NW, Gig Harbor, WA 98332-7909 Gig Harbor WA 98332 13413 36th Avenue Ct NW
Prior addresses: 25321 E Indore DR, Aurora, CO 80016-2192 Aurora CO 80016 25321 E Indore DR 25281 E Ottawa Dr, Aurora, CO 80016-7533 Aurora CO 80016 25281 E Ottawa Dr Po Box 462291, Aurora, CO 80046-2291 Aurora CO 80046 Po Box 462291
Relatives: Ryan Huffman, Chelsea Huffman, Kathryn Dunn, Kathy Taylor, Misty Brown, Nancy Huffman, Thomas Huffman, Adreion Huffman
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Victor Martinez Victor Manuel Martinez , Age 49

Lives at 117 Montevino Ct, Oakley, CA 94561-3980 Oakley CA 94561 117 Montevino Ct
Prior addresses: 952 29th St, Richmond, CA 94804-1304 Richmond CA 94804 952 29th St 1608 Windsor Way, Brentwood, CA 94513-5114 Brentwood CA 94513 1608 Windsor Way 1142 Pheasant Dr, Pittsburg, CA 94565-6833 Pittsburg CA 94565 1142 Pheasant Dr
Relatives: Celia Martinez, Katherine Rivera, Maria Garcia, Victor Martinez, Alysia Gurule, Amalia Garcia, Andres Garcia, Angelina Garcia, Araceli Martinez
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Neighbors

1808 Trinity Ct
Antioch, CA
View Property Report
1816 Trinity Ct
Antioch, CA
View Property Report
1809 Lassen Ct
Antioch, CA
View Property Report
1805 Lassen Ct
Antioch, CA
View Property Report

FAQs

Who lives at 1812 Trinity Ct, Antioch, CA 94509?
According to our records, the current person living in 1812 Trinity Ct is Tristan Siebold.
Is this property currently for sale?
The property is not for sale and last sold for $253,000 on Feb 18, 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 $562,000, reflecting a -7% 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 1,810 sq ft of living space on a 7,125 sq ft lot, built in 1974 and classified as a Single Family.
What nearby properties can I compare this to?
Nearby homes include 1808 Trinity Ct, 1816 Trinity Ct, and 1809 Lassen Ct, each with its own property report to help compare size, value, and residents.