MARKET SNAPSHOT
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224 Properties Available In 94509
- Default
- Price-High To Low
- Price-Low To High
- Newest Listings
- Beds (Most)
- Baths (Most)
- Year Built (Newest)
- Square Feet (Biggest)
- 1/4 4Open 7/12 12PM-3PM
$ 408,000
4 Beds2 Baths1,342 SqFt137 Rainier Ln, Antioch, CA 94509
Condo
Listed by Marva Clayton of Corcoran Icon Properties
- 1/29 29Open 6/26 10AM-12PM
$ 559,999
3 Beds2 Baths1,203 SqFt753 Hap Arnold St, Antioch, CA 94509
Single Family Home
Listed by Kevin Williams Jr. of Real Estate Source, Inc.
- 1/23 23Open Sat 1PM-3PM
$ 520,000
3 Beds1 Bath1,285 SqFt613 W 13th, Antioch, CA 94509
Single Family Home
Listed by Erica Webster of Realty One Group Elite
- 1/35 35Open Sat 12PM-3PM
$ 539,000
3 Beds2 Baths1,621 SqFt109 W 15Th St, Antioch, CA 94509
Single Family Home
Listed by Corinna Padilla of WR Properties
- 3DOpen Sun 1PM-3PM
$ 279,000
2 Beds2 Baths944 SqFt2410 Sunny Ln #26, Antioch, CA 94509
Condo
Listed by Joanne Mendoza of BHHS Drysdale Properties
- 1/24 24Open Sun 2PM-4PM
$ 575,000
4 Beds2 Baths1,528 SqFt516 Kean Ave., Antioch, CA 94509-2732
Single Family Home
Listed by Sherri Holt of Seecon Realty, Inc
- 1/31 31Open Sat 1PM-4PM
$ 649,500
3 Beds2 Baths1,842 SqFt3936 Pebble Dr, Antioch, CA 94509
Single Family Home
Listed by Nicole Anderson of Christie's Intl RE Sereno
- 1/19 19Open Sat 1PM-4PM
$ 758,000
5 Beds3 Baths2,899 SqFt2016 Aspen Ct, Antioch, CA 94509
Single Family Home
Listed by Judy Tiu of REALTY EXPERTS
- New
$ 299,999
3 Beds2 Baths1,187 SqFt1877 Bown Ln, Antioch, CA 94509
Single Family Home
Listed by Rohit K. Pathak of Pacific Realty Partners
- 1/22 22New
$ 420,000
2 Beds1 Bath1,053 SqFt342 W Madill Street, Antioch, CA 94509
Single Family Home
Listed by Michelle Henry of WR Properties
- 1/27 27New
$ 519,000
3 Beds2 Baths1,187 SqFt2704 Patricia Ave, Antioch, CA 94509
Single Family Home
Listed by Monica Zuniga of Realm Real Estate
- 1/24 24New
$ 199,000
1 Bed1 Bath635 SqFt1701 Mahogany Way #40, Antioch, CA 94509-3143
Condo
Listed by Lupe Kemper of Windermere Diablo Realty
- 1/25 25Pending
$ 595,000
4 Beds2 Baths1,722 SqFt3524 Longview Rd, Antioch, CA 94509
Single Family Home
Listed by Tiffany Stock of Keller Williams Realty
- 1/21 21New
$ 599,000
4 Beds3 Baths2,046 SqFt425 Sandy Hill Ct, Antioch, CA 94509
Single Family Home
Listed by Diane Kim of DNR Capital Real Estate
- 1/4 4Active Under Contract
$ 185,000
2 Beds1 Bath915 SqFt540 W Madill St, Antioch, CA 94509
Single Family Home
Listed by Viktoria Devinova Hill of Realty ONE Group Today
- 1/34 34New
$ 450,000
3 Beds2 Baths1,058 SqFt3264 Madrone St, Antioch, CA 94509
Single Family Home
Listed by Tiffany Stock of Keller Williams Realty
- 1/28 28New
$ 400,000
3 Beds2 Baths720 SqFt113 W 4TH ST, Antioch, CA 94509
Single Family Home
Listed by Debbie Warren of Warren Properties & Associates
- 1/30 30New
$ 525,000
3 Beds2 Baths1,174 SqFt417 Lynn AVE, Antioch, CA 94509
Single Family Home
Listed by Tommy Turner of eXp Realty of California Inc
- 1/21 21Pending
$ 525,000
4 Beds2 Baths1,409 SqFt2309 Chickie St, Antioch, CA 94509
Single Family Home
Listed by Shelly Gwynn of Compass
- 1/12 12New
$ 79,000
2 Beds2 Baths1,149 Sqft Lot147 Paulette Way, Antioch, CA 94509
Manufactured Home
Listed by Lola Kreiser of FIRST REALTY/PRYOR& ASSOCIATES
- 1/30 30New
$ 229,950
1 Bed1 Bath635 SqFt2416 Shadow Ln #74, Antioch, CA 94509
Condo
Listed by Jose Sublasky of Blue Line Property Group Real Estate & Property Management
- 1/24 24New
$ 495,000
3 Beds1 Bath1,069 SqFt2845 Sweeney Rd, Antioch, CA 94509
Single Family Home
Listed by Lucia Blanco of Compass
- 1/59 59New
$ 699,000
3 Beds3 Baths2,319 SqFt11 Alhambra Ct, Antioch, CA 94509
Single Family Home
Listed by Leo Zhang of Re/Max Accord
- 1/58 58New
$ 685,000
4 Beds3 Baths2,046 SqFt941 Bluerock Dr, Antioch, CA 94509
Single Family Home
Listed by Mara Blanco of GCM Realty & Loans
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Market Trends
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Market Trends are calculated using MLS® sold listing data

Katy Costello is a dedicated real estate professional with nearly a decade of experience, beginning her career in 2015 in Phoenix, Arizona, before relocating to Orange County, California. Passionate about helping clients build wealth through real estate, she is known for her meticulous research, relentless dedication, and commitment to maintaining the highest standards of integrity in every transaction.
Katy ensures that each client experience is marked by trust, professionalism, and exceptional service. Her approach combines deep market knowledge with a steadfast commitment to helping clients achieve their real estate goals, whether they are buying, selling, or investing.
Outside of her work in California, Katy and her partner Jaime are expecting their first child building their first Airbnb property in El Sargento, Baja California Sur, Mexico. In their free time, they enjoy fishing, exploring the local culture, and indulging in the area's vibrant cuisine.
Katy’s personal and professional experiences fuel her passion for real estate, and she is dedicated to making every client's journey seamless and successful