Mary Siapno is a San Diego REALTOR® and real estate strategist with The Barron Team at Real Broker. She serves buyers and sellers throughout North Inland San Diego, including Rancho Peñasquitos, Carmel Mountain Ranch, Rancho Bernardo, 4S Ranch, Del Sur, Scripps Ranch, Poway and Carmel Valley.
Mary helps clients navigate buying, selling, relocation and coordinated moves with thoughtful preparation and clear communication. Her background spans real estate, mortgage and operations, including leadership at a San Diego real estate investment firm, where she became Director of Operations. That experience shapes how she evaluates options, anticipates complications and keeps the details of a move aligned with her clients’ priorities.
Mary combines individual guidance with the resources of The Barron Team. As of October 2026, the team reports closing more than 250 homes annually and publishes a cumulative track record of more than 1,600 homes sold and $1 billion in sales volume. The team’s profiles display a 5.0 rating from more than 690 team reviews on Zillow and more than 125 reviews on Google.
Community connection is central to Mary’s life and work. She serves as Vice President of the Rancho Peñasquitos Town Council and Co-Chair of the Rancho Peñasquitos Fire Safe Council. Through North Inland Insider and Bring the Neighborhood Back, she shares local knowledge, supports local businesses and helps neighbors connect. Her volunteer roles are separate from her real estate business and do not imply organizational endorsement.
Mary is a 2026 San Diego Business Journal Women of Influence in Real Estate honoree and a finalist for the Female Community Builder Award at the 2026 San Diego Real Producers Awards.
Mary and her husband live in Rancho Peñasquitos. A mother of three enjoying a pseudo empty-nest chapter, she appreciates local restaurants, a good cup of coffee and San Diego sunsets.
Explore neighborhood guides and connect about your next move at https://marysiapno.com.
Mary Siapno | The Barron Team at Real Broker | California DRE #01489492
Mary Siapno is a San Diego REALTOR® and real estate strategist with The Barron Team at Real Broker. She serves buyers and sellers throughout North Inland San Diego, including Rancho Peñasquitos, Carmel Mountain Ranch, Rancho Bernardo, 4S Ranch, Del Sur, Scripps Ranch, Poway and Carmel Valley.
Mary helps clients navigate buying, selling, relocation and coordinated moves with thoughtful preparation and clear communication. Her background spans real estate, mortgage and operations, including leadership at a San Diego real estate investment firm, where she became Director of Operations. That experience shapes how she evaluates options, anticipates complications and keeps the details of a move aligned with her clients’ priorities.
Mary combines individual guidance with the resources of The Barron Team. As of October 2026, the team reports closing more than 250 homes annually and publishes a cumulative track record of more than 1,600 homes sold and $1 billion in sales volume. The team’s profiles display a 5.0 rating from more than 690 team reviews on Zillow and more than 125 reviews on Google.
Community connection is central to Mary’s life and work. She serves as Vice President of the Rancho Peñasquitos Town Council and Co-Chair of the Rancho Peñasquitos Fire Safe Council. Through North Inland Insider and Bring the Neighborhood Back, she shares local knowledge, supports local businesses and helps neighbors connect. Her volunteer roles are separate from her real estate business and do not imply organizational endorsement.
Mary is a 2026 San Diego Business Journal Women of Influence in Real Estate honoree and a finalist for the Female Community Builder Award at the 2026 San Diego Real Producers Awards.
Mary and her husband live in Rancho Peñasquitos. A mother of three enjoying a pseudo empty-nest chapter, she appreciates local restaurants, a good cup of coffee and San Diego sunsets.
Explore neighborhood guides and connect about your next move at https://marysiapno.com.
Mary Siapno | The Barron Team at Real Broker | California DRE #01489492
SOLD LISTINGS
Image
Address
Price
Configuration
Sold Date
Property Type
10217 Prairie Springs Rd Road, San Diego, CA 92127
$2,100,000
Single Family Home
Listed by Aaron Wallace of Compass
13509 Tradition, San Diego, CA 92128
$1,550,000
Single Family Home
Listed by Emma Lefkowitz of Real Broker
13693 Tradition Street, San Diego, CA 92128
$1,500,000
Single Family Home
Listed by Mary E Siapno of Real Broker
647 Windsor Circle, Chula Vista, CA 91910
$940,000
Single Family Home
Listed by Jorge Vega of Community Realty Group
9830 Caminito Cuadro, San Diego, CA 92129
$579,999
Condo
Listed by Dana Garcia of eXp Realty of California Inc
5212 Beachfront Cove St. #34, San Diego, CA 92154
$580,000
Condo
Listed by James Pellicane of Regent Properties of San Diego
1436 Robin Ln, El Cajon, CA 92020
$551,000
Condo
Listed by Erick C Gydesen of Big Block Realty, Inc.