Meet Samantha & Mark O’Brien
Coronado Real Estate Experts | The O’Briens at PorchLight Realty
A Legacy of Trust. A Record of Results.
When it comes to buying or selling a home in Coronado, experience matters. So does having someone in your corner who genuinely knows and loves the community.
Samantha and Mark O’Brien are the husband-and-wife team behind The O’Briens at PorchLight Realty, serving Coronado, the Coronado Cays, and communities throughout San Diego County.
With more than 250 successful real estate transactions, including over $30 million in sales in 2025 and a landmark $10.15 million Coronado home sale, The O’Briens have built their reputation on personalized service, local expertise, and exceptional results.
Experience That Makes a Difference
Samantha is the client-facing force behind The O’Briens, specializing in listing preparation, staging, marketing strategy, and negotiations. Her accomplishments include recognition as the California Association of REALTORS® 2019 Rookie of the Year, along with multiple San Diego Real Estate Awards Platinum honors.
Mark oversees marketing, operations, and business development, ensuring that every listing benefits from a comprehensive promotional strategy and every client receives attentive service.
Together, they combine hands-on local representation with the international marketing resources of eXp Luxury, helping buyers and sellers navigate everything from historic Coronado Village homes and waterfront properties in the Coronado Cays to luxury condominiums and residences throughout San Diego County.
More Than Real Estate. We’re Coronado Neighbors.
For Samantha and Mark, Coronado isn’t simply a market they serve. It’s home.
Mark moved to San Diego in 2006 after attending the University of Wisconsin–Milwaukee, trading Midwest winters for Southern California sunshine. Samantha, originally from Palm Desert, was equally drawn to the coast—although she was escaping the desert heat instead of the cold!
After discovering Coronado, they knew they’d found the community where they wanted to raise their family.
Today, they are proud Coronado residents, raising their daughter, Ollie, and enjoying island life with their golden retriever, Buffy.
Their commitment to Coronado extends well beyond real estate. They actively support and participate in organizations and events that make the community special, including:
- Coronado Promenade Concerts — Board leadership and concert hosting
- Coronado Island Film Festival — Board service and community sponsorship
- Coronado Rotary — Community service and involvement
- Coronado’s Fourth of July Parade — Parade announcing and children’s concert sponsorship
- O’BRIENFEST / Heart O’ Gold Festival — Annual fundraising efforts benefiting charitable causes
Their philosophy is simple: being part of a community means helping make it better.
A Personalized Approach to Coronado Real Estate
Every home and every client has a unique story.
Whether you’re preparing to sell a luxury waterfront property, purchasing your first Coronado home, relocating to San Diego, or exploring investment opportunities, The O’Briens believe exceptional representation begins with listening.
Their approach combines local market knowledge, thoughtful preparation, innovative marketing, and skilled negotiation—all delivered with the personal attention clients deserve.
Good friends deserve great agents.
Is Coronado Calling You?
If you’re thinking about buying or selling a home in Coronado or anywhere in San Diego County, Samantha and Mark would love to hear from you.
One call starts it all.
Contact The O’Briens
Coronado, California 92118
619-830-4284