MARKET SNAPSHOT
- ?Sold Listings
- ?Average Sales Price
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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)
- 1/34 34Active
$ 1,950,000
3 Beds4 Baths2,100 SqFt1603 New York DR, Altadena, CA 91001
Single Family Home
Listed by Antranik 'Andy' Hairabedian of The Agency
- 1/24 24Pending
$ 2,395,000
3 Beds3 Baths2,420 SqFt3435 Crestford DR, Altadena, CA 91001
Single Family Home
Listed by Timothy Durkovic of Christie's RE SoCal
- 1/26 26Active
$ 995,000
2 Beds1 Bath1,150 SqFt3059 Glenrose AVE, Altadena, CA 91001
Single Family Home
Listed by Carla Jamison of COMPASS
- 1/26 26Active
$ 1,349,000
3 Beds2 Baths1,567 SqFt2375 Catherine RD, Altadena, CA 91001
Single Family Home
Listed by Claire Cali of Compass
- 1/29 29Active
$ 1,329,000
3 Beds2 Baths2,135 SqFt2438 Santa Anita AVE, Altadena, CA 91001
Single Family Home
Listed by Ken McPheeters of MARKETPLACE REALTY
- 1/40 40Active
$ 1,200,000
4 Beds2 Baths1,906 SqFt608 Stonehurst DR, Altadena, CA 91001
Single Family Home
Listed by Jeanneth Madrid of Coldwell Banker Realty
- 1/36 36Active Under Contract
$ 799,000
3 Beds2 Baths1,367 SqFt237 W Loma Alta DR, Altadena, CA 91001
Single Family Home
Listed by Brian Parsons of Keller Williams Realty
- 1/37 37Price Dropped by $200K
$ 2,995,000
5 Beds3 Baths3,840 SqFt2011 Mar Vista AVE, Altadena, CA 91001
Single Family Home
Listed by Katrina Webb-McNeil of Compass
- 1/45 45Active
$ 2,199,000
5 Beds5 Baths3,886 SqFt3710 Sunset Ridge RD, Altadena, CA 91001
Single Family Home
Listed by Noelle Duryee of Engel & Voelkers La Canada
- 1/19 19Pending
$ 1,239,999
3 Beds2 Baths1,838 SqFt972 Alta Vista DR, Altadena, CA 91001
Single Family Home
Listed by Eduardo Nava of Luxury Collective
- 1/10 10Active
$ 3,895
2 Beds2 Baths1,158 SqFt488 Royce ST, Altadena, CA 91001
Single Family Home
Listed by Adam Vardanyan of Pegasus Realty
- 1/15 15Pending
$ 599,999
3 Beds1 Bath932 SqFt508 Vermont ST, Altadena, CA 91001
Single Family Home
Listed by Edward Rodarte of PAK HOME REALTY
- 1/74 74Price Dropped by $51K
$ 1,599,000
4 Beds4 Baths2,054 SqFt785 W Harriet ST, Altadena, CA 91001
Single Family Home
Listed by Jessica Romero of Keller Williams Realty
- 1/4 4Active
$ 2,350
1 Bed1 Bath500 SqFt2155 Summit AVE, Altadena, CA 91001
Multi-Family
Listed by Bryan Cruz of Realty One Group United
- 1/32 32Active
$ 2,600
1 Bed1 Bath800 SqFt2196 Navarro AVE #1/2, Altadena, CA 91001
Condo
Listed by Sonda Mayer of Engel & Voelkers La Canada
- 1/24 24Active
$ 899,000
3 Beds2 Baths1,358 SqFt2243 Casitas AVE, Altadena, CA 91001
Single Family Home
Listed by John Gonzales of FL Capital Realty
- 1/63 63Active Under Contract
$ 1,489,000
6 Beds5 Baths2,621 SqFt978 Kent ST, Altadena, CA 91001
Multi-Family
Listed by Aida Dimejian of Berkshire Hathaway Home Services Golden Properties
- 3DActive
$ 2,600,000
4 Beds5 Baths4,467 SqFt2393 Allen AVE, Altadena, CA 91001
Single Family Home
Listed by Andrea Drawn of Drawn Realty
- 1/44 44Active Under Contract
$ 999,000
2 Beds2 Baths1,252 SqFt3199 Glenrose AVE, Altadena, CA 91001
Single Family Home
Listed by Douglas Colliflower of Berkshire Hathaway Home Services Golden Properties
- 1/15 15Active
$ 2,050
1 Bath300 SqFt2191 El Sereno AVE, Altadena, CA 91001
Condo
Listed by Michael Shaar of S.I.G. Property Management
- 1/14 14Active
$ 1,174,000
4 Beds4 Baths1,431 SqFt949 Dolores DR, Altadena, CA 91001
Single Family Home
Listed by Susana Montes of eXp Realty of California Inc
- 1/35 35Active
$ 1,488,000
3 Beds2 Baths1,576 SqFt634 W Mendocino ST, Altadena, CA 91001
Single Family Home
Listed by CONG DU of PARTNER Real Estate
- 1/27 27Active Under Contract
$ 995,000
2 Beds1 Bath1,143 SqFt1730 Veranada AVE, Altadena, CA 91001
Single Family Home
Listed by Ricardo Curtis of Jacob, Christopher & Lee Rlty
- 1/17 17Active
$ 2,680,000
3 Beds3 Baths2,303 SqFt2966 Zane Grey, Altadena, CA 91001
Single Family Home
Listed by Xiao Cash Li of SoCal Premier Properties
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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