MARKET SNAPSHOT
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160 Properties Available
- Default
- Price-High To Low
- Price-Low To High
- Newest Listings
- Beds (Most)
- Baths (Most)
- Year Built (Newest)
- Square Feet (Biggest)
- 1/7 7Active
$ 3,500
2 Beds2 Baths1,200 SqFt3048 Fair Oaks AVE #B, Altadena, CA 91001
Single Family Home
Listed by Ovsanna Khacheryan of eXp Realty of California Inc
- 1/24 24Pending
$ 860,000
3 Beds2 Baths1,235 SqFt622 W Mariposa ST, Altadena, CA 91001
Single Family Home
Listed by Glenn Session of Glenn Session Realty
- 3DPending
$ 1,675,000
3 Beds3 Baths2,375 SqFt1144 E Altadena DR, Altadena, CA 91001
Single Family Home
Listed by Steve Haussler of Coldwell Banker Realty
- 3DActive
$ 1,529,000
4 Beds3 Baths2,152 SqFt1117 Mount Lowe DR, Altadena, CA 91001
Single Family Home
Listed by Abraham Prattella of AGENCY 8 REAL ESTATE GROUP
- 1/41 41Price Dropped by $5K
$ 1,695,000
4 Beds3 Baths1,820 SqFt400 E Calaveras ST, Altadena, CA 91001
Single Family Home
Listed by Christian Saco of HomeSmart Evergreen Realty
- 1/33 33Active
$ 3,850
2 Beds2 Baths1,240 SqFt1968 N Lake AVE #201, Altadena, CA 91001
Single Family Home
Listed by Chris Cha of Redpoint Realty
- 1/50 50Open Sat 1PM-5PM
$ 1,699,000
7,448 Sqft Lot1755 Morada PL, Altadena, CA 91001
Single Family Home
Listed by Shahe Barsoumian of Sunrise Realtors
- 1/17 17New
$ 625,000
0.19 Acres421 E Mendocino ST, Altadena, CA 91001
Vacant Land
Listed by Kenya Reeves-Costa of Compass
- 1/5 5New
$ 699,000
0.24 Acres2944 Santa Anita AVE, Altadena, CA 91001
Vacant Land
Listed by Lori Harris of Keller Williams Realty Los Feliz
- 1/19 19New
$ 748,000
0.26 Acres3120 Mount Curve AVE, Altadena, CA 91001
Vacant Land
Listed by Margarit Torgomyan of Berkshire Hathaway Home Services Golden Properties
- 1/4 4New
$ 675,000
0.11 Acres305 W Las Flores DR, Altadena, CA 91001
Vacant Land
Listed by Andre Holley of HomeSmart, Evergreen Realty
- 1/8 8New
$ 175,000
0.24 Acres2879 Stonehill DR, Altadena, CA 91001
Vacant Land
Listed by Eduard Khachatryan of Luxury Homes International
- 1/19 19New
$ 699,000
0.21 Acres1434 E Loma Alta DR, Altadena, CA 91001
Vacant Land
Listed by Dhari Thein of COMPASS
- 1/5 5New
$ 600,000
0.16 Acres3350 Tonia AVE, Altadena, CA 91001
Vacant Land
Listed by Jamar Jackson of Real Estate eBroker, Inc.
- 1/2 2New
$ 498,000
0.17 Acres2734 Glen AVE, Altadena, CA 91001
Vacant Land
Listed by Hovig Dimejian of Berkshire Hathaway Golden Prop
- 1/11 11New
$ 995,000
0.26 Acres114 116 Mountain View ST, Altadena, CA 91001
Vacant Land
Listed by Jeremy Hardy of Craig Estates and Fine Properties
- 1/8 8New
$ 449,000
0.13 Acres2637 Olive AVE, Altadena, CA 91001
Vacant Land
Listed by Lori Harris of Keller Williams Realty Los Feliz
- 1/12 12New
$ 549,000
0.14 Acres23 W Mendocino ST, Altadena, CA 91001
Vacant Land
Listed by Jason Berns of Keller Williams Realty
- 1/20 20New
$ 630,000
0.24 Acres248 W Loma Alta DR, Altadena, CA 91001
Vacant Land
Listed by John Shaw of Home Base Realty Inc
- 1/4 4New
$ 679,000
0.2 Acres645 Colman ST, Altadena, CA 91001
Vacant Land
Listed by Jeff Fisher of Berkshire Hathaway Home Servic
- 1/21 21New
$ 1,200,000
0.51 Acres1185 E Altadena DR, Altadena, CA 91001
Vacant Land
Listed by Joycelyn McDowell of Navigators Real Estate, Inc.
- 1/5 5New
$ 549,000
1,064 SqFt509 W Altadena DR, Altadena, CA 91001
Single Family Home
Listed by Robert Farrell of Coldwell Banker Realty
- 1/5 5New
$ 699,000
0.17 Acres924 E Mount Curve AVE, Altadena, CA 91001
Vacant Land
Listed by Devon Beck of Berkshire Hathaway Home Servic
- 1/19 19New
$ 570,000
0.15 Acres3359 Alicia AVE, Altadena, CA 91001
Vacant Land
Listed by Sarah Rogers of The Agency
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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