MARKET SNAPSHOT
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- ?Average Sales Price
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31 Properties Available
- Default
- Price-High To Low
- Price-Low To High
- Newest Listings
- Beds (Most)
- Baths (Most)
- Year Built (Newest)
- Square Feet (Biggest)

$ 899,000
2010 Galvin LN #1, Diamond Bar, CA 91765
Townhouse
Listed by Jonathan Lin of RE/MAX 2000 REALTY


$ 1,260,000
635 Boxcove PL, Diamond Bar, CA 91765
Single Family Home
Listed by Yepeng Yang of RE/MAX Galaxy


$ 1,488,888
1594 Deer Crossing DR, Diamond Bar, CA 91765
Single Family Home
Listed by Soonjae Jung of 888 Realty


$ 1,590,000
24324 Knoll CT, Diamond Bar, CA 91765
Single Family Home
Listed by Jonathan Minerick of Homecoin.com


$ 1,099,000
626 Ritter ST, Diamond Bar, CA 91765
Single Family Home
Listed by Andrew Nguyen of Copley Realty


$ 2,600
800 Grand AVE #A5, Diamond Bar, CA 91765
Condo
Listed by Jolyn Lin of 168 Realty Inc.


$ 1,408,000
1202 Longview DR, Diamond Bar, CA 91765
Single Family Home
Listed by Howard Zhang of Homequest Real Estate


$ 3,000
1304 S Diamond Bar BLVD #B, Diamond Bar, CA 91765
Condo
Listed by YVONNE WU of RT Property Management


$ 899,000
3005 La Paz Lane #C, Diamond Bar, CA 91765
Townhouse
Listed by Vickie Fageol of Coldwell Banker West


$ 1,198,000
1428 Blenbury DR, Diamond Bar, CA 91765
Single Family Home
Listed by TING CHU of IRN REALTY


$ 769,000
3040 La Paz LN #B, Diamond Bar, CA 91765
Condo
Listed by Cathy Cheng of CC Royal Realty


$ 780,000
23020 Paseo De Terrado #2, Diamond Bar, CA 91765
Condo
Listed by Larry Black of Better Homes and Gardens Real Estate The Heritage Group


$ 1,495,000
1912 Morning Canyon RD, Diamond Bar, CA 91765
Single Family Home
Listed by Lei Zhang of Real Broker


$ 899,000
3201 Marigold CIR, Diamond Bar, CA 91765
Condo
Listed by Jeffrey Yao of Ameriway Realty


$ 472,688
22800 Hilton Head DR #305, Diamond Bar, CA 91765
Condo
Listed by SOFIA CHANG of RE/MAX 2000 REALTY


$ 2,150,000
2243 Feather Rock RD, Diamond Bar, CA 91765
Single Family Home
Listed by CHINGTO WONG of RE/MAX 2000 REALTY


$ 410,000
348 S Prospectors RD #8, Diamond Bar, CA 91765
Condo
Listed by Ty Courtney Wallace of Coldwell Banker Tri-Counties R


$ 1,250,000
1954 Los Cerros DR, Diamond Bar, CA 91765
Single Family Home
Listed by Yuanfeng Mao of RE/MAX 2000 REALTY


$ 885,000
1153 Flintlock RD, Diamond Bar, CA 91765
Single Family Home
Listed by Lauren Davis of MARK ANDERSEN & ASSOCIATES


$ 1,499,999
760 Featherwood DR, Diamond Bar, CA 91765
Single Family Home
Listed by Gilbert Rivera of Marketing Specialists


$ 2,500
22890 Hilton Head DR #289, Diamond Bar, CA 91765
Condo
Listed by Chittna Chotibhongs of Nationwide Realty


$ 4,500
705 Bowcreek DR, Diamond Bar, CA 91765
Single Family Home
Listed by Trina Tseng of Century 21 Masters


$ 882,500
448 S Rock River RD, Diamond Bar, CA 91765
Single Family Home
Listed by Favio Ortolani of RE/MAX TOP PRODUCERS


$ 3,490
2605 Crooked Creek DR, Diamond Bar, CA 91765
Single Family Home
Listed by ZHAO CAI of RE/MAX 2000 REALTY

MORTGAGE CALCULATOR

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Market Trends
- Average Sold Price
- Median Sold Price
- Highest Sold Price
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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