Susan Lewandowski-Realtor

20 Years. One Mission.

It started over 50 years ago along a shared country driveway in what was still orchards, before it became Silicon Valley.

Two kids who became lifelong friends, long before they became business partners.

In the summer of 2006, that friendship became a business built on a simple conviction: that doing right by people was its own reward.

We didn't know then what Sereno would become. We just knew why we were building it. Now we live it.

Twenty years later, with over 650 agents, 20 offices, and over $7 million in charitable giving, we see our agents, clients, and communities that have grown alongside us, and we are humbled.

Thank you for making these 20 years matter.

— Chris Trapani & Ryan Iwanaga, Co-Founders



Susan Lewandowski
REALTOR®, Relocation Specialist
Silicon Valley
650-867-6257
[email protected]
DRE 01852946

We’re grateful to be recognized as the #1 privately owned residential real estate brokerage in Silicon Valley and the Greater Bay Area, based on 2025 sales, by Silicon Valley Business Journal.

It's a reflection of two decades of trust, meaningful relationships, and agents who show up every day with extraordinary care for the people and communities they serve.

Recognition is meaningful, but what it represents matters even more.



Susan Lewandowski
REALTOR®, Relocation Specialist
Silicon Valley
650-867-6257
[email protected]
DRE 01852946

📍 New Listing 📍 Take a look at this fantastic new property that just hit the market located at 5138 Graves Ave in San Jose. Reach out here or at (650) 867-6257 for more information

Susan Lewandowski
REALTOR®, Relocation Specialist
Silicon Valley
650-867-6257
[email protected]
DRE 01852946

New Listing in San Jose This stunning end-unit has everything on your wish list, featuring double-height windows that flood the space with natural light, hardwood flooring, & an open-plan layout centered around a kitchen island & granite counters. A reading nook/office adjoins the kitchen, and the dining area is illumin...