MARKET SNAPSHOT
- ?Sold Listings
- ?Average Sales Price
- ?Average Days on Market
- Any
- $ 100,000
- $ 150,000
- $ 200,000
- $ 400,000
- $ 800,000
- Any
- $ 200,000
- $ 300,000
- $ 400,000
- $ 600,000
- $ 1,000,000
- List
- Mixed
- Map
23 Properties Available In 91765
- Default
- Price-High To Low
- Price-Low To High
- Newest Listings
- Beds (Most)
- Baths (Most)
- Year Built (Newest)
- Square Feet (Biggest)
$899,000
$1,699,000
21040 Ambushers, Diamond Bar, CA 91765
MLS# TR26125566 Listed by Anna Yang of New Star Realty & Inv.$1,499,000
$775,000
$1,479,000
23834 Sunset Crossing, Diamond Bar, CA 91765
MLS# TR26122321 Listed by Thomas Hung of Exp Realty of California Inc$1,080,000
450 Golden Springs DR #D, Diamond Bar, CA 91765
MLS# WS26123428 Listed by Janice Shin of Pinnacle Real Estate Group$619,800
22804 Hilton Head DR #40, Diamond Bar, CA 91765
MLS# WS26118948 Listed by JOHNNY TSENG of Pinnacle Real Estate Group$433,000
1135 Summitridge DR, Diamond Bar, CA 91765
MLS# PW26123256 Listed by Michael La of Coldwell Banker Best Realty$1,535,000
2127 Evergreen Springs Drive, Diamond Bar, CA 91765
MLS# CV26121734 Listed by Christina Lam of KELLER WILLIAMS PREMIER PROPER$918,000
1303 Holly Leaf Way, Diamond Bar, CA 91765
MLS# TR26119233 Listed by Ethan Jeng of Exp Realty of California Inc$1,468,000
$1,345,000
1348 Rolling Knoll RD, Diamond Bar, CA 91765
MLS# TR26117466 Listed by Feng Popeney of Pan Feng Realty Inc$1,379,999
24242 Sylvan Glen RD #G, Diamond Bar, CA 91765
MLS# SR26116149 Listed by Laura Getzoff of RE/MAX One$534,999
22865 Hilton Head DR #216, Diamond Bar, CA 91765
MLS# 26838895 Listed by Jeffrey Park of New Star Realty$498,000
1423 Copper Mountain, Diamond Bar, CA 91765
MLS# TR26115009 Listed by Samuel Castorena of Samuel G. Castorena Jr$1,299,999
1160 N Del Sol, Diamond Bar, CA 91765
MLS# AR26113535 Listed by Ryan Go of Coldwell Banker Dynasty Arc.$1,050,000
23930 Sapphire Canyon, Diamond Bar, CA 91765
MLS# CV26113099 Listed by Hiljin Sabangan of Deluxe Realty$1,159,999
$838,000
22886 Hilton Head DR #139, Diamond Bar, CA 91765
MLS# TR26098254 Listed by Justin Eden of KW College Park$479,900
22621 Ridge Line RD, Diamond Bar, CA 91765
MLS# PW26087846 Listed by Minh Nguyen of First Team Real Estate$2,620,000
1507 Kiowa Crest DR, Diamond Bar, CA 91765
MLS# PW26081692 Listed by Austin Choi of Coldwell Banker Best Realty$1,285,000
$1,191,000
- 1
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Market Trends
- Average Sold Price
- Median Sold Price
- Highest Sold Price
- Lowest Sold Price
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







