With decades of proven experience, SDA is a fully integrated development firm specializing in U.S. Government build-to-suit medical and office properties.
Who We Are
Our properties are more than buildings—they’re mission-driven environments designed to support the people and agencies who use them.
Our Properties
Explore our latest developments as they take shape—backed by 40+ years of integrated expertise, partnership-driven development, and proven excellence.
See Projects
With over four decades of experience, SDA Inc. specializes in creating high-value U.S. Government build-to-suit office buildings, delivering projects worth over $500 million.
Learn More
We blend architectural vision with engineering expertise to create build-to-suit lease back office buildings that are as functional as they are timeless.
Learn More
With over 40 years of experience, we specialize in managing government office buildings ensuring seamless operations and long-term value for your real estate investments
Learn More
Since 1979, SDA has earned a reputation for excellence in real estate development—grounded in enduring partnerships and a vision that looks generations ahead.
More than a developer, SDA is a dependable partner—delivering spaces that stand the test of time.
Explore our portfolio of recently completed, in-progress, and legacy developments across the U.S.
Under Construction
View our projects in progress across the country. Every project under construction represents more than a building—it’s a commitment to the people who will live, work, and serve within its walls.
Portfolio Overview
SDA’s legacy properties are more than milestones—they’re enduring symbols of purpose, trust, and vision fulfilled. Browse our property showcase to see the lasting impact of our commitment—one building at a time.
On May 12th, SDA celebrated the opening of a state-of-the-art medical facility designed for those who served.
The Castle Rock VA Clinic stands as a purpose-built space for care, connection, and community. The ribbon cutting brought together SDA team members, veterans, civic leaders, and partners to mark the completion of a shared vision.
SDA team members joined local veterans, community leaders, and care advocates to mark the opening of the Castle Rock VA Clinic.
Celebrating side-by-side with those we serve reinforces our mission: creating spaces that honor commitment, resilience, and service.
We designed and built this clinic to elevate the experience of care—for both veterans and medical professionals. It’s a reflection of SDA’s belief in the power of design to serve dignity, connection, and long-term wellbeing.
From site selection to long-term management, SDA delivers unified, expert-led real estate execution—without handoffs or blind spots.
Founded in 1979 by Stephen Biagiotti, SDA has developed office buildings, medical clinics, neighborhood shopping centers, and land developments valued over $500 Million.
We blend architectural vision with engineering expertise to create build-to-suit lease-back office buildings that are as functional as they are timeless.
Broadly licensed in the Western U.S., our expert construction team delivers precision, quality, and reliability in every project—built right, every time.
With over 40 years of experience, we specialize in managing government office buildings ensuring seamless operations and long-term value for your real estate investments.
From secure federal offices to mission-critical medical clinics, our developments meet the moment—and the decades ahead. From secure offices to care delivery sites, we design for real use, real needs, and real longevity.
With decades of experience, we develop secure, high-quality government-leased properties that meet the rigorous demands of federal and local agencies. Each building is engineered for performance and compliance —ensuring it not only upholds government standards but also creates lasting value for the communities it serves.
We develop high-quality government medical clinics designed to serve those who served. Each facility is thoughtfully planned and constructed to meet the unique needs of veterans and government healthcare providers to support long-term well-being and service delivery.
We work closely with our partners to develop properties that meet real needs—from secure federal sites to dynamic workplaces that support everyday operations.
