
Happy Clients
We are dedicated to addressing California’s housing crisis by building beautiful, affordable homes that families can be proud of. As a family-run business, we focus on quality and integrity, creating spaces where families can thrive now and into the future.

Homes designed around comfort, durability, and everyday functionality—without compromising on aesthetics or craftsmanship.

From materials to construction standards, we prioritize safety, reliability, and lasting value for modern families and future generations.
Short steps build huge trust.
Walk away if margins don’t meet discipline
We maintain a disciplined and selective pipeline focused on high-quality residential opportunities. Our approach balances market demand, design integrity, and long-term value—allowing us to move quickly while remaining highly selective.
High-growth urban and suburban markets with strong fundamentals, supply constraints, and long-term population growth.
Mr. Duffy is a real estate developer, investor, and broker with deep expertise in highly competitive Northern California markets. He specializes in project management, financial controls, and real estate investments.
Before founding Hummingbird Development and Hummingbird Properties, he spent over 30 years in financial services, holding senior leadership roles at Fidelity Investments, Charles Schwab, and Bank of America. He has extensive experience building teams, raising capital, and managing multi-million-dollar portfolios.
Originally from Siberia, Russia, Altana Danzhalova brings a unique blend of technical precision, creativity, and resilience to her work. With a master’s degree in computer science and a family background in construction, she began building homes early on, gaining hands-on experience in demanding conditions that shaped her strong foundation in craftsmanship and structural integrity.
Now based in Northern California, Altana designs and builds homes that balance functionality and beauty. Trained in fashion and interior design, her work reflects a rare mix of engineering expertise and artistic vision, earning industry recognition and features in leading publications.
A closer look at how we build, think, and create value. From real project walkthroughs to market perspectives and the philosophy that guides every decision, these videos offer transparency, insight, and trust.
The housing market is at a pivotal moment. Structural shortages, shifting buyer demographics, and growing demand for ready-to-move homes are converging—creating a rare window for thoughtfully built, high-quality residential developments to stand out and succeed.