About Nostra Haus
Modern real estate excellence in the heart of the Hamptons
Our Story
Nostra Haus was founded on a simple belief: every client deserves exceptional service when making one of life's most meaningful investments.
What began as a boutique vision has grown into a modern real estate firm redefining the luxury experience in the Hamptons. We blend local knowledge, creative marketing, and smart technology to deliver results that go beyond the transaction.
From first-time buyers to seasoned investors—from beach cottages to iconic estates—we guide our clients with integrity, care, and an unwavering commitment to their goals.
Our Expert Team
Meet the dedicated professionals behind Nostra Haus
Nathalia Valencia
Owner & Licensed Real Estate Broker
As the founder and lead broker of Nostra Haus, Nathalia brings a bold vision to the Hamptons real estate scene—one rooted in elevated service, modern design, and a deep understanding of what today’s buyers and sellers truly value.
With a background in business, marketing, and high-end client service, she blends sharp negotiation skills with a calm, confident presence that clients trust. Nathalia is known for her meticulous attention to detail, her refined taste, and her ability to turn complex transactions into smooth, stress-free experiences.
Her mission? To build a boutique firm where relationships come first, creativity leads the way, and every client—from first-time buyer to seasoned investor—feels seen, heard, and supported.
Gianluca Santacruz
Licensed Real Estate Salesperson
Gianluca is a dynamic force in Hamptons real estate—blending a sharp eye for design, a passion for lifestyle branding, and a relentless drive to deliver results. As a founding agent at Nostra Haus, he brings a fresh, modern approach to the luxury market, using innovative marketing, tech-forward strategies, and authentic storytelling to connect clients with properties that match their vision.
With a background in entrepreneurship, fitness, and creative media, Gianluca understands how to navigate high-stakes transactions while making the process feel effortless and personalized. Whether you're buying your first home, upgrading to a dream estate, or investing in a short-term rental, he brings energy, transparency, and a deep local knowledge to every deal.
Outside of real estate, you’ll find him running the Hamptons’ trails, creating content, and building a brand that’s as bold as it is unique.
Ready to Begin Your Journey?
Contact our team today to discover how we can help you achieve your real estate goals in the Hamptons.