MARKET SNAPSHOT
- ?Sold Listings
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117 Properties Available
- Default
- Price-High To Low
- Price-Low To High
- Newest Listings
- Beds (Most)
- Baths (Most)
- Year Built (Newest)
- Square Feet (Biggest)
- 1/41 41Active
$ 869,990
3 Beds2 Baths1,252 SqFt3275 Dalhart AVE, Simi Valley, CA 93063
Single Family Home
Listed by Kreg Gable of R.R.Gable, Inc.
- 1/27 27Active
$ 699,000
2 Beds2 Baths1,100 SqFt1419 21 Flo DR, Alpine, CA 91901
Multi-Family
Listed by Jesse Wilson of Keller Williams Realty
- 1/30 30Active
$ 1,099,000
5 Beds5 Baths3,461 SqFt604 River Ranch Rd, Markleeville, CA 96120
Single Family Home
Listed by Juan Antonio Escorcia Cervantes of ROA California Inc
- 1/13 13Active
$ 7,500
3 Beds3 Baths2,150 SqFt287 Portola RD, Portola Valley, CA 94028
Single Family Home
Listed by Juliana Hill of Santa Cruz Estates
- 1/68 68Pending
$ 1,450,000
4 Beds4 Baths3,374 SqFt334 Old Stagecoach Run, Alpine, CA 91901
Single Family Home
Listed by Terri Pontzious of Willis Allen Real Estate
- 1/71 71Price Dropped by $100K
$ 1,150,000
3 Beds2 Baths2,642 SqFt2444 Via Dieguenos, Alpine, CA 91901
Single Family Home
Listed by April Halvarson of Compass
- 1/35 35Active
$ 870,000
3 Beds2 Baths1,658 SqFt2361 Columbine Dr, Alpine, CA 91901
Single Family Home
Listed by Marla Drexler of Palisade Realty Inc
- 1/24 24Pending
$ 775,000
2 Beds1 Bath800 SqFt1025 Alpine Boulevard, Alpine, CA 91901
Single Family Home
Listed by Keith York of Agents of Architecture, Inc.
- 1/48 48Price Dropped by $25K
$ 1,224,000
3 Beds2 Baths2,092 SqFt1603 CAMINO DEL SEQUAN, Alpine, CA 91901
Single Family Home
Listed by Mike Boehme of Pacific Properties San Diego
- 1/36 36Price Dropped by $50K
$ 799,900
3 Beds2 Baths1,125 SqFt2289 Kelsey ST, Simi Valley, CA 93063
Single Family Home
Listed by Greg Cox of RE/MAX One
- 1/19 19Price Dropped by $95K
$ 299,900
1 Bed1 Bath754 SqFt2157 Arnold Way #821, Alpine, CA 91901
Condo
Listed by Lori Patenaude of ReMax Direct
- 1/49 49Active
$ 949,500
3 Beds2 Baths1,658 SqFt2307 Columbine DR, Alpine, CA 91901
Single Family Home
Listed by Kimberly Walton of Happy Homes Real Estate
- 1/58 58Active Under Contract
$ 975,000
3 Beds3 Baths2,361 SqFt1958 Highlands View Rd, Alpine, CA 91901
Single Family Home
Listed by Greg Fox of Keller Williams Realty
- 1/32 32Active
$ 899,000
3 Beds2 Baths1,879 SqFt668 Starbright LN, Alpine, CA 91901
Single Family Home
Listed by Jeff Campbell of Coldwell Banker West
- 1/32 32Price Dropped by $11K
$ 439,000
2 Beds2 Baths946 SqFt2157 Arnold Way #624, Alpine, CA 91901
Condo
Listed by Michael Proctor of eXp Realty of California, Inc.
- 1/36 36Pending
$ 715,000
2 Beds2 Baths1,152 SqFt3465 Barrett View, Alpine, CA 91901
Single Family Home
Listed by Heather Hunter of Country Developers, Inc
- 1/27 27Pending
$ 599,000
3 Beds3 Baths2,604 SqFt1239 Arnold WAY, Alpine, CA 91901
Single Family Home
Listed by Cory Boldroff of Keller Williams Realty World Class
- 1/75 75Pending
$ 1,450,000
5 Beds4 Baths3,316 SqFt424 Sky Mesa Rd, Alpine, CA 91901
Single Family Home
Listed by Andrea Flint-Gogek of Tranquility Real Estate Services
- 1/53 53Price Dropped by $150K
$ 2,749,000
8 Beds5 Baths4,710 SqFt21906 10 Japatul Ln, Alpine, CA 91901
Single Family Home
Listed by Morris Malakha of Compass
- 1/50 50Active
$ 3,100,000
6 Beds9 Baths5,658 SqFt733 CLAYBURN CT, Alpine, CA 91901
Single Family Home
Listed by Patty Plascencia of P & P and Associates Realty
- 1/61 61Pending
$ 1,099,000
4 Beds3 Baths2,413 SqFt8873 Hunter Pass, Alpine, CA 91901
Single Family Home
Listed by Melissa Goldstein Tucci of Melissa Goldstein Tucci
- 1/60 60Active
$ 1,099,000
4 Beds3 Baths1,782 SqFt23471 Japatul Valley Rd, Alpine, CA 91901
Single Family Home
Listed by Zora Urieff of Renovation Realty
- 1/34 34Pending
$ 950,000
4 Beds3 Baths2,427 SqFt2986 Sage View Dr, Alpine, CA 91901
Single Family Home
Listed by Chase Cromwell of eXp Realty of California, Inc.
- 1/46 46Pending
$ 937,500
3 Beds2 Baths1,706 SqFt2487 Columbine DR, Alpine, CA 91901
Single Family Home
Listed by Deneen Maillet of Coldwell Banker West
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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