Meet WEICHERT, REALTORS® Rainbow Properties

Since 1983 | CA DRE #01918384

Meet WEICHERT, REALTORS® Rainbow Properties

Newark's oldest real estate company — on the same corner off Main Street since 1983. Luxury representation led by Adam Modzeleski, Broker.

A Brokerage Built on Bay Area Roots

WEICHERT, REALTORS® Rainbow Properties is Newark's oldest real estate company — serving the San Francisco Bay Area from the same location off Main Street since 1983. With real estate and lending under one roof, our clients move forward with the whole transaction handled in one place.

The brokerage is led by Adam Modzeleski, Broker — a Professor of Real Estate who teaches in Atherton, one of the most expensive zip codes in the country, where homes average $10 million. He brings world-class, global real-estate education to every client we represent. For Adam, real estate is something to be taught as much as sold: clients leave understanding the why behind every decision, not just the what.

We represent the Bay Area's full range of fine homes — single-family residences, condominiums and townhomes, and multi-family properties — with a focus on luxury homes from $1M to $20M. Whether it's an Atherton estate, a San Mateo classic, or a $3M-plus property, we give each one the preparation, marketing, and negotiation it deserves.

We are a full brokerage of more than twenty agents — and we grow our own. Our in-house real-estate school trains four to five new agents every year, so the people who represent you were taught here, in these neighborhoods. When you work with WEICHERT, REALTORS® Rainbow Properties, you get candid advice, discreet handling, and a steady hand from first showing to final signature.

Our promise: honest counsel, world-class real-estate education, and four-plus decades of Bay Area knowledge to help you make the smartest move — buying or selling.

Credentials & Expertise

Licensed California Brokerage

Led by Adam Modzeleski, Broker — CA DRE #01918384 — a full-service, independently owned firm serving the San Francisco Bay Area.

Newark's Oldest, Since 1983

Newark's oldest real estate company — more than four decades in Bay Area real estate, operating from the same location off Main Street. Continuity you can count on.

Real Estate + Lending, Under One Roof

Real estate and loans combined in one place (NMLS #1462961) — one team, one relationship, the whole transaction handled together.

Luxury Bay Area Specialists

Deep expertise in the Bay Area's premier addresses — Atherton, San Mateo, and luxury homes from $1M to $20M, including $3M-plus estates.

Taught, Not Just Sold

Broker Adam Modzeleski is a Professor of Real Estate, and the firm runs its own real-estate school — training four to five new agents every year. Every client benefits from world-class, global real-estate education — so you understand each decision, not just sign for it.

Local Roots. World-Class Education.

WEICHERT, REALTORS® Rainbow Properties pairs four decades of Bay Area knowledge with a teaching-first approach and real market intelligence. Whether you're pursuing an Atherton estate, selling a San Mateo classic, or exploring luxury options across the Peninsula and East Bay, you'll have a dedicated advocate at every step.

Work With Us

Ready to Make Your Move?

Whether you're buying your first Bay Area home or entrusting us with a family estate, we'd be honored to guide you through every step of the journey.